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RED SLIDE: These are notes that are very important and should be recorded in your science journal. Copyright © 2010 Ryan P. Murphy.

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Presentation on theme: "RED SLIDE: These are notes that are very important and should be recorded in your science journal. Copyright © 2010 Ryan P. Murphy."— Presentation transcript:

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2 RED SLIDE: These are notes that are very important and should be recorded in your science journal. Copyright © 2010 Ryan P. Murphy

3 -Nice neat notes that are legible and use indentations when appropriate. -Example of indent. -Skip a line between topics -Make visuals clear and well drawn. Please label. Effort Arm Resistance Arm

4 RED SLIDE: These are notes that are very important and should be recorded in your science journal. BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly. Copyright © 2010 Ryan P. Murphy

5 Keep an eye out for “The-Owl” and raise your hand as soon as you see him. –He will be hiding somewhere in the slideshow Copyright © 2010 Ryan P. Murphy

6 Keep an eye out for “The-Owl” and raise your hand as soon as you see him. –He will be hiding somewhere in the slideshow “Hoot, Hoot” “Good Luck!” Copyright © 2010 Ryan P. Murphy

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8 Available worksheet, PE, KE, and ME.

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11 Potential Energy: (PE) The energy stored by an object as a result of its position. Potential Energy: (PE) The energy stored by an object as a result of its position. Copyright © 2010 Ryan P. Murphy

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14 Potential Enegy (PE)Kinetic Energy (KE)

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18 Potential Energy is the energy of position. Objects that are elevated have a high potential energy. Potential Energy is the energy of position. Objects that are elevated have a high potential energy. Kinetic Energy is the energy of motion. Kinetic Energy is the energy of motion. Copyright © 2010 Ryan P. Murphy

19 Potential Energy is the energy of position. Objects that are elevated have a high potential energy. Potential Energy is the energy of position. Objects that are elevated have a high potential energy. Kinetic Energy is the energy of motion. Kinetic Energy is the energy of motion. Copyright © 2010 Ryan P. Murphy

20 Potential Energy is the energy of position. Objects that are elevated have a high potential energy. Potential Energy is the energy of position. Objects that are elevated have a high potential energy. Kinetic Energy is the energy of motion. Kinetic Energy is the energy of motion. Copyright © 2010 Ryan P. Murphy

21 Available worksheet, PE, KE, and ME.

22 Laws of Motion and Simple Machines Unit

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24 Copyright © 2010 Ryan P. Murphy

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29 Video Link! (Optional) Energy changes, Potential and Kinetic Energy. –http://www.youtube.com/watch?v=Jnj8mc04r9Ehttp://www.youtube.com/watch?v=Jnj8mc04r9E

30 Activity! PE – KE Skateboarder Simulator Search Phet Skate Board Demo. Download program (Free) http://phet.colorado.edu/en/simulation/energy -skate-park http://phet.colorado.edu/en/simulation/energy -skate-park Copyright © 2010 Ryan P. Murphy

31 PE = mgh PE = mgh Copyright © 2010 Ryan P. Murphy

32 PE = mgh PE = mgh PE = Energy (in Joules) PE = Energy (in Joules) Copyright © 2010 Ryan P. Murphy

33 PE = mgh PE = mgh PE = Energy (in Joules) PE = Energy (in Joules) m = mass (in kilograms) m = mass (in kilograms) Copyright © 2010 Ryan P. Murphy

34 Laws of Motion and Simple Machines Unit

35 Available worksheet, PE, KE, and ME.

36 Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m / sec². –Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy

37 Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m / s². –Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy

38 Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m / s². –Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy

39 PE = mgh m = 2 kg g = 9.8 m/sec2 h = 3.5 m Copyright © 2010 Ryan P. Murphy

40 PE = mgh m = 2 kg g = 9.8 m/sec2 h = 3.5 m Copyright © 2010 Ryan P. Murphy

41 PE = mgh m = 2 kg g = 9.8 m/s² h = 3.5 m Copyright © 2010 Ryan P. Murphy

42 Newton's Laws of Motion, Forces in Motion and Simple Machines Unit

43 Activity! Bungee Jumping!

44 Activity! But we will use an egg. Egg

45 Activity! and It’s not a real egg, it’s plastic.

46 Activity! …and instead of candy...

47 Activity! …and instead of candy...it’s washers

48 Demonstration of bungee jump gone wrong by teacher. This is not what you want to happen to your plastic egg.

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50 Paperclip to Hook on ceiling

51 String (You create length)

52 Paperclip to Hook on ceiling String (You create length) Elastic

53 Laws of Motion and Simple Machines Unit

54 Kinetic energy Kinetic energy Copyright © 2010 Ryan P. Murphy

55 Kinetic energy Kinetic energy The energy that matter has because of its motion and mass. The energy that matter has because of its motion and mass. Copyright © 2010 Ryan P. Murphy

56 Kinetic energy Kinetic energy The energy that matter has because of its motion and mass. The energy that matter has because of its motion and mass. Where m = mass of object (kg). Where m = mass of object (kg). Copyright © 2010 Ryan P. Murphy

57 Kinetic energy Kinetic energy The energy that matter has because of its motion and mass. The energy that matter has because of its motion and mass. Where m = mass of object (kg). Where m = mass of object (kg). v = speed of object. v = speed of object. Copyright © 2010 Ryan P. Murphy

58 Kinetic energy Kinetic energy The energy that matter has because of its motion and mass. The energy that matter has because of its motion and mass. Where m = mass of object (kg). Where m = mass of object (kg). v = speed of object. v = speed of object. KE = Energy in Joules. KE = Energy in Joules. Copyright © 2010 Ryan P. Murphy

59 Kinetic energyKinetic energy –The energy that matter has because of its motion and mass. –Where m = mass of object (kg). –v = speed of object. –KE = Energy in Joules. Copyright © 2010 Ryan P. Murphy This equation shows that the kinetic energy of an object is proportional to the square of its speed. For a twofold increase in speed, the kinetic energy will increase by a factor of four.

60 Kinetic energyKinetic energy –The energy that matter has because of its motion and mass. –Where m = mass of object (kg). –v = speed of object. –KE = Energy in Joules. Copyright © 2010 Ryan P. Murphy This equation shows that the kinetic energy of an object is proportional to the square of its speed. For a twofold increase in velocity, the kinetic energy will increase by a factor of four.

61 Kinetic energy Kinetic energy - - - Copyright © 2010 Ryan P. Murphy

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63 Kinetic Energy

64 Copyright © 2010 Ryan P. Murphy Kinetic Energy

65 Translational Energy: Motion from one location to another.

66 Vibrational energy (sound)

67 Electrical energy: Flow of electrons. Electrical energy: Flow of electrons. Copyright © 2010 Ryan P. Murphy

68 Rotational energy.

69 Kinetic energy is a scalar quantity; as it does not have a direction.

70 –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude

71 Kinetic energy is a scalar quantity; as it does not have a direction. –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude

72 Kinetic energy is a scalar quantity; as it does not have a direction. –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude

73 Kinetic energy is a scalar quantity; as it does not have a direction. –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude

74 Kinetic energy is a scalar quantity; as it does not have a direction. –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude

75 Kinetic energy is a scalar quantity; as it does not have a direction. –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude Magnitude is just the measurement without direction

76 Kinetic energy is a scalar quantity; as it does not have a direction. –Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude Scalars and Vectors. Learn more at… http://www.grc. nasa.gov/WWW /k- 12/airplane/vect ors.html

77 How you can remember the difference between the two…

78 Scales are still / Don’t have direction

79 How you can remember the difference between the two… Scales are still / Don’t have direction Just a cool fighter pilot name, Jet Pilots travel with direction.

80 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

81 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

82 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

83 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

84 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

85 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

86 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

87 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

88 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

89 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

90 Which are scalar quantities? –Magnitude only Which are vector quantities? –Magnitude and direction. Magnitude is just the measurement without direction

91 F=ma –(Which is are scalars and which are vectors?)

92 F=ma –(Which is are scalars and which are vectors?)

93 F=ma –(Which is are scalars and which are vectors?) Force has magnitude and direction

94 F=ma –(Which is are scalars and which are vectors?) Force has magnitude and direction

95 F=ma –(Which is are scalars and which are vectors?) Force has magnitude and direction Mass: Magnitude Only

96 F=ma –(Which is are scalars and which are vectors?) Force has magnitude and direction Mass: Magnitude Only

97 F=ma –(Which is are scalars and which are vectors?) Force has magnitude and direction Mass: Magnitude Only Acceleration has magnitude and direction

98 Amount of KE depends on both the objects mass and its velocity / (speed).Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy

99 Amount of KE depends on both the objects mass and its velocity / (speed).Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy

100 Amount of KE depends on both the objects mass and its velocity / (speed).Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy

101 Amount of KE depends on both the objects mass and its velocity / (speed).Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy

102 Amount of KE depends on both the objects mass and its velocity / (speed).Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy

103 Available worksheet, PE, KE, and ME.

104 What is the kinetic energy of a 10 kilogram cannon ball traveling at 50 meters per second? m = 10 kg v = 50 m/s Copyright © 2010 Ryan P. Murphy

105 What is the kinetic energy of a 10 kilogram cannon ball traveling at 50 meters per second? m = 10 kg v = 50 m/s Copyright © 2010 Ryan P. Murphy

106 What is the kinetic energy of a 10 kilogram cannon ball traveling at 50 meters per second? m = 10 kg v = 50 m/s Copyright © 2010 Ryan P. Murphy

107 Don’t forget your order of operations. Copyright © 2010 Ryan P. Murphy

108 Don’t forget your order of operations. PEMDAS Copyright © 2010 Ryan P. Murphy

109 Don’t forget your order of operations. PEMDAS For KE, you must do exponents (E) before multiplying (M). Copyright © 2010 Ryan P. Murphy

110 Don’t forget your order of operations. PEMDAS For KE, you must do exponents (E) before multiplying (M). Copyright © 2010 Ryan P. Murphy

111 Don’t forget your order of operations. PEMDAS For KE, you must do exponents (E) before multiplying (M). Copyright © 2010 Ryan P. Murphy

112 KE = 0.5 times 10 kg times (50) ² Joules Copyright © 2010 Ryan P. Murphy

113 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy

114 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy

115 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy

116 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy

117 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules KE = Copyright © 2010 Ryan P. Murphy

118 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules KE = 12,500 Joules Copyright © 2010 Ryan P. Murphy

119 KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules KE = 12,500 Joules Copyright © 2010 Ryan P. Murphy

120 Available worksheet, PE, KE, and ME.

121 Laws of Motion and Simple Machines Unit

122 Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy

123 Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy If I were to throw up right now which way would it go?

124 Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy

125 Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy

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130 Important Note: Centrifugal force does not actually exist.

131 Important Note: Centrifugal force does not actually exist. We are in a non-inertial coordinate system. Nevertheless, it appears quite real to the object being rotated. Centrifugal force is like Newton's "Every action has an equal an opposite reaction.” When you step on the gas in your car you hit the seat behind you as if you are going backwards but you are really going forwards. As soon as you stop pulling on the merry go round (applying an inward, not outward force) you will fly off in a straight line. No more force inward, no more going in a circle.

132 Learn more at… http://knowledgedrift.wordpress.com/strange-oddities-of- history/the-myth-of-centrifugal-force/http://knowledgedrift.wordpress.com/strange-oddities-of- history/the-myth-of-centrifugal-force/

133 Video! “Centrifugal Force” misplayed with some kids who didn’t take this class. –http://www.youtube.com/watch?v=XWCBk9Vl-rchttp://www.youtube.com/watch?v=XWCBk9Vl-rc Note: All yellow print doesn’t actually exist.

134 Centripetal Force: Force that acts on a body moving in a circular path and is directed toward the center around which the body is moving. Centripetal Force: Force that acts on a body moving in a circular path and is directed toward the center around which the body is moving. Copyright © 2010 Ryan P. Murphy

135 Teacher Demonstration – I will turn a pail of water upside down over my head. Copyright © 2010 Ryan P. Murphy

136 Why didn’t the water fall out of the pail as I was spinning it around? Why didn’t the water fall out of the pail as I was spinning it around?

137 Laws of Motion and Simple Machines Unit

138 Activity (Optional) Funky foam tube roller coaster. –Use ½ inch foam pipe insulation cut in half, duct tape to connect the tubes and anchor, cup to catch at end, and marbles.

139 Create a one page visual of a roller coaster with drawings. –Name your coaster. –Create a not to scale visual that will be achievable with the materials provided by teacher. –Class will vote to choose a model and build the coaster. –Calculate the PE and KE. –Find the mass of the marble. –Measure the height of the coaster. –Calculate the velocity. Distance / meters divided by seconds and direction

140 Create a one page visual of a roller coaster with drawings. –Name your coaster. –Create a not to scale visual that will be achievable with the materials provided by teacher. –Class will vote to choose a model and then build the coaster. –Calculate the PE and KE. –Find the mass of the marble. –Measure the height of the coaster. –Calculate the velocity. Distance / meters divided by seconds and direction

141 Academic Link! (Optional) PE and KE –http://www.youtube.com/watch?v=BSWl_Zj-CZshttp://www.youtube.com/watch?v=BSWl_Zj-CZs

142 F=MA, PE, KE and more ramp activity. –Available Sheet

143 Activity! Kinetic and Potential Energy + Newton’s Laws F=MA. Copyright © 2010 Ryan P. Murphy

144 Activity! Kinetic and Potential Energy + Newton’s Laws F=MA. Copyright © 2010 Ryan P. Murphy

145 Laws of Motion and Simple Machines Unit

146 Hydropower : Potential energy turned into kinetic energy of motion turned into kinetic electrical energy. Copyright © 2010 Ryan P. Murphy

147 Hydropower : Potential energy turned into kinetic energy of motion turned into kinetic electrical energy. Copyright © 2010 Ryan P. Murphy

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149 Hydropower gave rise to early industry. –One of our earliest ways to harness energy. Copyright © 2010 Ryan P. Murphy

150 Hydropower gave rise to early industry. –One of our earliest ways to harness energy. Copyright © 2010 Ryan P. Murphy Potential Energy

151 Hydropower gave rise to early industry. –One of our earliest ways to harness energy. Copyright © 2010 Ryan P. Murphy Potential Energy Transfer to Kinetic Energy Transfer to Kinetic Energy

152 In Dinowrig, Wales. Water is pumped from the lower lake to the upper lake when electricity is low in demand.

153 During times high electrical demand, the stored potential energy flows downhill to generate electricity (Kinetic).

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156 Kinetic energy to kinetic electrical energy Copyright © 2010 Ryan P. Murphy

157 Gravity turns potential energy in tides, into kinetic energy (flowing tides) into kinetic electrical energy. Copyright © 2010 Ryan P. Murphy

158 Geothermal Copyright © 2010 Ryan P. Murphy

159 Geothermal -Kinetic energy heat, turns water into steam, water rises and runs a turbine to generate electrical energy. Copyright © 2010 Ryan P. Murphy

160 Geothermal -Kinetic energy heat, turns water into steam, water rises and runs a turbine to generate electrical energy. Copyright © 2010 Ryan P. Murphy

161 Geothermal -Kinetic energy heat, turns water into steam, water rises and runs a turbine to generate kinetic electrical energy. Copyright © 2010 Ryan P. Murphy

162 Steam / Coal and wood burning electric plant

163 Nuclear energy – Nuclear reactions generate kinetic electrical energy using water, steam, and a turbine.

164 Laws of Motion and Simple Machines Unit

165 Video Link! (Optional) Scalers and Vectors. –http://www.youtube.com/watch?v=EUrMI0DIh40http://www.youtube.com/watch?v=EUrMI0DIh40

166 Speed: A measure of motion, = distance divided by time. D/T Speed: A measure of motion, = distance divided by time. D/T Copyright © 2010 Ryan P. Murphy

167 Speed: A measure of motion, = distance divided by time. D/T Speed: A measure of motion, = distance divided by time. D/T Copyright © 2010 Ryan P. Murphy

168 Speed: A measure of motion, = distance divided by time. D/T Speed: A measure of motion, = distance divided by time. D/T Copyright © 2010 Ryan P. Murphy Speed is the rate of motion, or the rate of change of position.

169 Speed: A measure of motion, = distance divided by time. D/T Speed: A measure of motion, = distance divided by time. D/T Copyright © 2010 Ryan P. Murphy Speed is the rate of motion, or the rate of change of position. Can only be zero or positive.

170 Distance = Speed ● Time

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174 How far did Joe walk if he walked a steady 4 km/h for three straight hours?

175 Distance = Speed ● Time

176 How far did Joe walk if he walked a steady 4 km/h for three straight hours? Distance = Speed ● Time Distance = 4 km/h ● 3 h

177 How far did Joe walk if he walked a steady 4 km/h for three straight hours? Distance = Speed ● Time Distance = 4 km/h ● 3 h Distance =

178 How far did Joe walk if he walked a steady 4 km/h for three straight hours? Distance = Speed ● Time Distance = 4 km/h ● 3 h Distance = 12 km

179 Distance Speed = --------------- Time

180 What is Joes speed if he walked a steady 5 km in one hour? Rate / Speed R =

181 What is Joes speed if he walked a steady 5 km in one hour? Rate / Speed R = 5 km 1 hour or 5 km/hr

182 What is Joes speed if he walked 5 km in one hour? Rate / Speed R = 5 km 1 hour or 5 km/hr

183 Juan travels 300km in 6hrs. Find his average speed in km/h.

184 Speed = Distance / Time

185 Juan travels 300km in 6hrs. Find his average speed in km/h. Speed = Distance / Time 300km Speed = ------------ = 50 km/h 6h

186 Juan travels 300km in 6hrs. Find his average speed in km/h. Speed = Distance / Time 300km 50km Speed = ------------ = --------- 6h h

187 Laws of Motion and Simple Machines Unit

188 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m

189 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m

190 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m Now use Pythagorean Theorem A²+B²=C²

191 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m Now use Pythagorean Theorem A²+B²=C² 4m² = 16 m

192 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m Now use Pythagorean Theorem A²+B²=C² 4m² = 16 m 8m² = 64 m

193 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m Now use Pythagorean Theorem A²+B²=C² 4m² = 16 m 8m² = 64 m 16 m + 64 m =

194 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m Now use Pythagorean Theorem A²+B²=C² 4m² = 16 m 8m² = 64 m 16 m + 64 m = 80 m

195 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 4m 8m Now use Pythagorean Theorem A²+B²=C² 4m² = 16 m 8m² = 64 m 16 m + 64 m = 80 m √ 80m =

196 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 8.94m 4m 8m Now use Pythagorean Theorem A²+B²=C² 4m² = 16 m 8m² = 64 m 16 m + 64 m = 80 m √ 80m = 8.94 m

197 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy

198 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy

199 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy

200 Velocity deals with displacement. –Displacement measures where you end up relative to where you started. Copyright © 2010 Ryan P. Murphy 50m 60m 30m 100m

201 Newton's Laws of Motion, Forces in Motion and Simple Machines Unit

202 Forces in Motion, Speed, Velocity, Acceleration and more available sheet.

203 It took Lightning McGreen 2.5 hours to travel 600 kilometers. –How fast was he going in Kilometers an hour? Copyright © 2010 Ryan P. Murphy

204 It took Lightning McGreen 2.5 hours to travel 600 kilometers. –How fast was he going in Kilometers an hour? Copyright © 2010 Ryan P. Murphy

205 It took Lightning McGreen 2.5 hours to travel 600 kilometers. –How fast was he going in Kilometers an hour? Copyright © 2010 Ryan P. Murphy Speed = Distance / Time

206 It took Lightning McGreen 2.5 hours to travel 600 kilometers. –How fast was he going in Kilometers an hour? Copyright © 2010 Ryan P. Murphy Speed = Distance / Time

207 It took Lightning McGreen 2.5 hours to travel 600 kilometers. –How fast was he going in Kilometers an hour? Copyright © 2010 Ryan P. Murphy Speed = Distance / Time Speed = 600 km / 2.5 h

208 It took Lightning McGreen 2.5 hours to travel 600 kilometers. –How fast was he going in Kilometers an hour? Copyright © 2010 Ryan P. Murphy Speed = Distance / Time Speed = 600 km / 2.5 h Speed = 240 km/h

209 Answer: 240 km/h –Speed is distance over time. Copyright © 2010 Ryan P. Murphy

210 Forces in Motion, Speed, Velocity, Acceleration and more available sheet.

211 It took Ms. Rally 4 hours to travel 165 kilometers due North. –What was the velocity of her car in Kilometers an hour? Copyright © 2010 Ryan P. Murphy

212 Newton's Laws of Motion, Forces in Motion and Simple Machines Unit

213 Catching the Violators Available Sheet.

214 Activity! Looking for the Violators.

215 Safety is a big concern here. Students need to be far from road. Outside behavior must be excellent. Safety is a big concern here. Students need to be far from road. Outside behavior must be excellent.

216 Activity! Looking for the Violators. Safety is a big concern here. Students need to be far from road. Outside behavior must be excellent. Safety is a big concern here. Students need to be far from road. Outside behavior must be excellent. We also must try to conceal ourselves at all time. We do not want anyone to see us / slow down. We also must try to conceal ourselves at all time. We do not want anyone to see us / slow down.

217 Activity! Optional –Teacher measures out 300 feet along road and puts a cone at the start and finish a short distance from the roads edge. –From a distance, students use a stopwatch to time the speed of cars from the start cone to the finish cone. –Speed = Distance (300 ft) divided by time (ft/sec.) –Multiply by.681 (ft/sec to mph conversion) = mph –Over 30 mph is speeding in the village. –Create list of all the speeds and then average. –Does the village have a speeding problem?

218 Laws of Motion and Simple Machines Unit

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222 Note: This is nice to know. Average vs. Instantaneous Velocity –Instantaneous Velocity: When an object starts and then speeds up (not moving at one steady speed).

223 Note: This is nice to know. Average vs. Instantaneous Velocity –Instantaneous Velocity: When an object starts and then speeds up (not moving at one steady speed). Instantaneous Velocity Definition: The velocity of an object at any given instant (especially that of an accelerating object); the limit of the change in position per unit time as the unit of time approaches zero; expressed mathematically

224 Note: This is nice to know. Average vs. Instantaneous Velocity –Instantaneous Velocity: When an object starts and then speeds up (not moving at one steady speed). Instantaneous Velocity Definition: The velocity of an object at any given instant (especially that of an accelerating object); the limit of the change in position per unit time as the unit of time approaches zero; expressed mathematically

225 Average: The result obtained by adding several quantities together and then dividing this total by the number of quantities; the mean

226 Average: The result obtained by adding several quantities together and then dividing this total by the number of quantities; the mean.

227 Available Extension PowerPoint and Available Sheets. –Metric Conversions and Scientific Notation.

228 Video Link!, Position, Velocity, and Acceleration. –Please record some of the equations when I pause the video. http://www.youtube.com/watch?v=O6Onfqt-Vzw

229 Acceleration = The rate of change in velocity. (m/s) Acceleration = The rate of change in velocity. (m/s) Copyright © 2010 Ryan P. Murphy

230 Acceleration = The rate of change in velocity. (m/s) Acceleration = The rate of change in velocity. (m/s) Copyright © 2010 Ryan P. Murphy

231 Acceleration = The rate of change in velocity. (m/s) Acceleration = The rate of change in velocity. (m/s) Copyright © 2010 Ryan P. Murphy

232 Newton's Laws of Motion, Forces in Motion and Simple Machines Unit

233 A unicyclist was traveling at 2 m/s South and speed up to 6 m/s in 3 seconds. –What was the acceleration? Copyright © 2010 Ryan P. Murphy

234 A unicyclist was traveling at 2 m/s South and speed up to 6 m/s in 3 seconds. –What was the acceleration? Copyright © 2010 Ryan P. Murphy

235 A unicyclist was traveling at 2 m/s South and speed up to 6 m/s in 3 seconds. –What was the acceleration? Copyright © 2010 Ryan P. Murphy

236 The final velocity (6 m/s) minus the starting velocity (2 m/s) South divided by the time (3 seconds) = acceleration. Copyright © 2010 Ryan P. Murphy 6 m/s – 2m/s 3s – 0s

237 The final velocity (6 m/s) minus the starting velocity (2 m/s) South divided by the time (3 seconds) = acceleration. Copyright © 2010 Ryan P. Murphy 4 m/s 3s

238 The final velocity (6 m/s) minus the starting velocity (2 m/s) South divided by the time (3 seconds) = acceleration. Copyright © 2010 Ryan P. Murphy 4 m/s 3s = 1.333 m/s South

239 Copyright © 2010 Ryan P. Murphy Acceleration: Learn more at… http://www.physicsclassroom.com/class/1dkin/u1l1e.cfm http://www.physicsclassroom.com/class/1dkin/u1l1e.cfm

240 Video Link! Khan Academy. Acceleration. (Optional) complete problems as he does. –Be active in your learning not passive. –http://www.khanacademy.org/science/physics/ mechanics/v/accelerationhttp://www.khanacademy.org/science/physics/ mechanics/v/acceleration Copyright © 2010 Ryan P. Murphy

241 Deceleration: To slow velocity. Deceleration: To slow velocity. - Copyright © 2010 Ryan P. Murphy

242 Deceleration: To slow velocity. Deceleration: To slow velocity. Formula is the same as acceleration but will be a negative value. Formula is the same as acceleration but will be a negative value. Copyright © 2010 Ryan P. Murphy

243 Deceleration: To slow velocity. Deceleration: To slow velocity. Formula is the same as acceleration but will be a negative value. Formula is the same as acceleration but will be a negative value. Copyright © 2010 Ryan P. Murphy Note: There is no "deceleration", only negative acceleration

244 The formula is the same, but the value will be a negative. –Deceleration = (final velocity – starting velocity) divided by time. Copyright © 2010 Ryan P. Murphy

245 Forces in Motion, Speed, Velocity, Acceleration and more available sheet.

246 Lightning McGreen was traveling 200 m/s West when he slowed to 50 m/s in 10 seconds. –What was his deceleration? Copyright © 2010 Ryan P. Murphy

247 Lightning McGreen was traveling 200 m/s West when he slowed to 50 m/s in 10 seconds. –What was his deceleration? Copyright © 2010 Ryan P. Murphy

248 Laws of Motion and Simple Machines Unit

249 Copyright © 2010 Ryan P. Murphy Joule: Unit of energy, work, or amount of heat. Joule: Unit of energy, work, or amount of heat. Equal to the energy expended in applying a force of one newton through a distance of one meter. Equal to the energy expended in applying a force of one newton through a distance of one meter.

250 Copyright © 2010 Ryan P. Murphy Joule: Unit of energy, work, or amount of heat. Joule: Unit of energy, work, or amount of heat. Equal to the energy expended in applying a force of one newton through a distance of one meter. Equal to the energy expended in applying a force of one newton through a distance of one meter.

251 Copyright © 2010 Ryan P. Murphy Joule: Unit of energy, work, or amount of heat. Joule: Unit of energy, work, or amount of heat. Equal to the energy expended in applying a force of one newton through a distance of one meter. Equal to the energy expended in applying a force of one newton through a distance of one meter.

252 Copyright © 2010 Ryan P. Murphy Joule: Unit of energy, work, or amount of heat. Joule: Unit of energy, work, or amount of heat. Equal to the energy expended in applying a force of one newton through a distance of one meter. Equal to the energy expended in applying a force of one newton through a distance of one meter.

253 Newton's Laws of Motion, Forces in Motion and Simple Machines Unit

254 A bulldozer exerts 50,000 newtons over a distance of 6 meters. –Work = Force times Distance. –How much work was bulldozer doing? Copyright © 2010 Ryan P. Murphy

255 A bulldozer exerts 50,000 newtons over a distance of 6 meters. –Work = Force times Distance. –How much work was bulldozer doing? Copyright © 2010 Ryan P. Murphy

256 A bulldozer exerts 50,000 newtons over a distance of 6 meters. –Work = Force times Distance. –How much work was bulldozer doing? Copyright © 2010 Ryan P. Murphy “We need some music to help us through this question.” http://www.youtube.com/ watch?v=dO_PL3V1c4Y http://www.youtube.com/ watch?v=dO_PL3V1c4Y

257 A bulldozer exerts 50,000 newtons over a distance of 6 meters. –Work = Force times Distance. –How much work was bulldozer doing? Copyright © 2010 Ryan P. Murphy “Can We Do It?”

258 W = F times D W = ? Joules F = 50,000 newtons D = Copyright © 2010 Ryan P. Murphy

259 W = F times D W = ? Joules F = 50,000 newtons D = 6 meters Copyright © 2010 Ryan P. Murphy

260 W = F times D W = ? Joules F = 50,000 newtons D = 6 meters Copyright © 2010 Ryan P. Murphy “Yes We Can!”

261 Answer: 300,000 Joules Copyright © 2010 Ryan P. Murphy

262 Answer: 300,000 Joules Copyright © 2010 Ryan P. Murphy “We Did it!”

263 Forces in Motion, Speed, Velocity, Acceleration and more available sheet.

264 10,000 Joules of work were accomplished by a group of sled dogs exerting 400 newtons. How far did the dogs travel in meters? Copyright © 2010 Ryan P. Murphy

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266 Activity! PowerPoint Review Game Part II Copyright © 2010 Ryan P. Murphy

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268 Areas of Focus within The Motion and Machines Unit: Newton’s First Law, Inertia, Friction, Four Types of Friction, Negatives and Positives of Friction, Newton’s Third Law, Newton’s Second Law, Potential Energy, Kinetic Energy, Mechanical Energy, Forms of Potential to Kinetic Energy, Speed, Velocity, Acceleration, Deceleration, Momentum, Work, Machines (Joules), Catapults, Trajectory, Force, Simple Machines, Pulley / (MA Mechanical Advantage), Lever / (MA), Wedge / (MA), Wheel and Axle (MA), Inclined Plane / (MA), Screw / (MA) - Mousetrap Cars Link to unit Laws of Motion and Simple Machines Unit

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273 This PowerPoint is one small part of my Laws of Motion and Simple Machines entire unit that I offer on TpT This unit includes… A 3 Part 2,300+ Slide PowerPoint and student version. 15 Page bundled homework package and 11 pages of units notes that chronologically follow the PowerPoint 3 PowerPoint review games (150+ slides each), 20+ videos / Links, rubrics, games, activity sheets, and much more. Laws of Motion and Simple Machines Unit

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275 Please open the welcome / guide document on each unit preview. –This document will describe how to utilize these resources in your classroom and provide some curriculum possibilities.

276 Please visit the links below to learn more about each of the units in this curriculum and to see previews of each unit. –These units take me four busy years to complete with my students in grades 5-10. Earth Science UnitsExtended Tour Link and Curriculum Guide Geology Topics Unit http://sciencepowerpoint.com/Geology_Unit.html Astronomy Topics Unit http://sciencepowerpoint.com/Astronomy_Unit.html Weather and Climate Unit http://sciencepowerpoint.com/Weather_Climate_Unit.html Soil Science, Weathering, More http://sciencepowerpoint.com/Soil_and_Glaciers_Unit.html Water Unit http://sciencepowerpoint.com/Water_Molecule_Unit.html Rivers Unit http://sciencepowerpoint.com/River_and_Water_Quality_Unit.html = Easier = More Difficult = Most Difficult 5 th – 7 th grade 6 th – 8 th grade 8 th – 10 th grade

277 Physical Science UnitsExtended Tour Link and Curriculum Guide Science Skills Unit http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Metric_Methods. html Motion and Machines Unit http://sciencepowerpoint.com/Newtons_Laws_Motion_Machines_Unit.html Matter, Energy, Envs. Unit http://sciencepowerpoint.com/Energy_Topics_Unit.html Atoms and Periodic Table Unit http://sciencepowerpoint.com/Atoms_Periodic_Table_of_Elements_Unit.html Life Science UnitsExtended Tour Link and Curriculum Guide Human Body / Health Topics http://sciencepowerpoint.com/Human_Body_Systems_and_Health_Topics_Unit.html DNA and Genetics Unit http://sciencepowerpoint.com/DNA_Genetics_Unit.html Cell Biology Unit http://sciencepowerpoint.com/Cellular_Biology_Unit.html Infectious Diseases Unit http://sciencepowerpoint.com/Infectious_Diseases_Unit.html Taxonomy and Classification Unit http://sciencepowerpoint.com/Taxonomy_Classification_Unit.html Evolution / Natural Selection Unit http://sciencepowerpoint.com/Evolution_Natural_Selection_Unit.html Botany Topics Unit http://sciencepowerpoint.com/Plant_Botany_Unit.html Ecology Feeding Levels Unit http://sciencepowerpoint.com/Ecology_Feeding_Levels_Unit.htm Ecology Interactions Unit http://sciencepowerpoint.com/Ecology_Interactions_Unit.html Ecology Abiotic Factors Unit http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html

278 Thank you for your time and interest in this curriculum tour. Please visit the welcome / guide on how a unit works and please link to the many unit previews to see the PowerPoint slideshows, bundled homework packages, review games, unit notes, and much more. Thank you again and please feel free to contact me with any questions you may have. Best wishes. Sincerely, Ryan Murphy M.Ed www.sciencepowerpoint@gmail.com

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