Newton’s First Law of Motion 12/8/14 12/8 Weight vs Mass Textbook p HW: Physics to go TB: p.402 #1 and #2 12/8 Newton’s 1 st Law of Motion Workbook p /9Science Fair 12/10 Newton’s 1 st Law of Motion Workbook p HW: Read WB p in the workbook. Annotate for procedural words and underline where information should be recorded. Note any directions that are unclear. 12/11 Newton’s 1 st Law of Motion WB p /12Newton’s 1 st Law of Motion WB p /Quiz

Date: 12/8/14Objective: I can distinguish between mass and weight. I can also calculate weight in Newtons (N) Bell Ringer: Based on the data below, one could generalize that minerals used in abrasives? A. Contain carbon B. Have hardness of 7 or above C.Are always red in color D. Have a density of 4.0 g/cm 3. (EMI : Select a simple hypothesis, prediction, or conclusion that is supported by a data presentation or a model )

Date: 12/8/14Objective: I can distinguish between mass and weight. I can also calculate weight in Newtons (N) Activity Titled : Textbook p. 392 Answer Investigate Part A questions 1-5 in your Notebook Answer questions with your shoulder partner. Both partners must write their answers in your notebook

DEFINITIONS Mass - the amount of matter an object has. Matter- something that has mass and takes up space. Weight- is the amount of mass of an object, it is dependent upon gravity. 1 pound (lbs)=.45 kilogram (kg)

Look at this figure. The mass of the bowling ball does not change, but the mass of the puppy does. How? Where does the matter come from? Can the mass of the bowling ball ever change?

Place these 5 items in the order they would be the most attracted to the Earth due to gravity. Explain why you picked your order. House fly Tennis ball Elephant Bowling ball peanut

Exit Question What would happen to your mass and to your weight if you went to the moon? Explain how you arrived at your answer.

Date: 11/8/13Objective: I can investigate Newton’s first law of motion Bell Ringer: 1.What would happen to your mass and to your weight if you went to the moon? Explain how you arrived at your answer. 2.Calculate the weight of a 50kg ball? F w =mg

Place these 5 items in the order they would be the most attracted to the Earth due to gravity. Explain why you picked your order. House fly Tennis ball Elephant Bowling ball peanut

12/8/14 Activity Workbook page 65 Read demonstration as a group Complete workbook p.67 independently

Date: 12/10/14Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Bell Ringer: Based on our activity Yesterday, if the roller Coaster starts at point B What point will the cart Reach? D or E or F Explain why

12/10/14 Activity Complete workbook p.68 Class discussion

12/10/14 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Independently read and annotate Workbook p minutes

12/10/14 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Video

12/11/14 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Workbook page 72 complete TEJ for Newton’s 1st

12/11/14 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life HW: Read WB p in the workbook. Annotate for procedural words and underline where information should be recorded. Note any directions that are unclear.

12/12/14 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life HW: Read WB p in the workbook. Annotate for procedural words and underline where information should be recorded. Note any directions that are unclear.

Date: 12/11/14Objective: I can read and understand procedures to perform an activity on Newton’s second law of motion WB p Perform activity Person #1 supplies-set up, take down, and care of cart and mass Person #2 operates the glx Person #3 records data Person #4 reads directions

Date: 12/11/14Objective: I can read and understand procedures to perform an activity on Newton’s second law of motion WB p Perform activity Person #1 supplies-set up, take down, and care of cart and mass Person #2 operates the glx Person #3 records data Person #4 reads directions Follow the directions on p. 74 part 1 After 4 runs analyze the data- follow directions on p.75 If data doesn’t look good redo it

Date: 11/7/12Objective: I can read and understand procedures to perform an activity on Newton’s second law of motion work book to page Perform activity Person #1 supplies-set up, take down, and care of cart Person #2 operates the glx Person #3 records data Person #4 read procedures

Example of a conservative system: The simple pendulum. Suppose we release a mass m from rest a distance h 1 above its lowest possible point. – What is the maximum speed of the mass and where does this happen ? – To what height h 2 does it rise on the other side ? v h1h1 h2h2 m

Example: The simple pendulum. y y= 0 y=h 1 – What is the maximum speed of the mass and where does this happen ? E = K + U = constant and so K is maximum when U is a minimum.

Example: The simple pendulum. v h1h1 y y=h 1 y=0 – What is the maximum speed of the mass and where does this happen ? E = K + U = constant and so K is maximum when U is a minimum E = mgh 1 at top E = mgh 1 = ½ mv 2 at bottom of the swing

Example: The simple pendulum. y y=h 1 =h 2 y=0 To what height h 2 does it rise on the other side? E = K + U = constant and so when U is maximum again (when K = 0) it will be at its highest point. E = mgh 1 = mgh 2 or h 1 = h 2

Potential Energy, Energy Transfer and Path A ball of mass m, initially at rest, is released and follows three difference paths. All surfaces are frictionless 1.The ball is dropped 2.The ball slides down a straight incline 3.The ball slides down a curved incline After traveling a vertical distance h, how do the three speeds compare? (A) 1 > 2 > 3 (B) 3 > 2 > 1 (C) 3 = 2 = 1 (D) Can’t tell h 13 2

An experiment Two blocks are connected on the table as shown. The table has a kinetic friction coefficient of  k. The masses start at rest and m 1 falls a distance d. How fast is m 2 going? T m1m1 m2m2 m2gm2g N m1gm1g T fkfk Mass 1  F y = m 1 a y = T – m 1 g Mass 2  F x = m 2 a x = -T + f k = -T +  k N  F y = 0 = N – m 2 g | a y | = | a y | = a =(  k m 2 - m 1 ) / (m 1 + m 2 ) 2ad = v 2 =2 (  k m 2 - m 1 ) g / (m 1 + m 2 )  K= -  k m 2 gd – Td + Td + m 1 gd = ½ m 1 v 2 + ½ m 2 v 2 v 2 =2 (  k m 2 - m 1 ) g / (m 1 + m 2 )

Date: 11/24Goal: I can finalize my Science Fair project Bell Ringer: If the force of gravity between two objects is 50N, what would the force be if the two object’s masses were doubled?

Date: 11/24Goal: Goal: I can finalize my Science Fair project Final Project Presentation and Report By December 1st, complete your presentation and report. You will share both your final report and presentation with Mr. Stoll on google drive.

Date: 11/24Goal: Goal: I can finalize my Science Fair project Presentations