We will describe and illustrate forces. I will draw pictures of forces in everyday life. 8/31/2015 Agenda  Bell Ringer  Force PPT and Notes  Assessment Questions  Ticket Out Bell Ringer Vocabulary Copy vocabulary and use 1 word in a sentence Motion: An object's change in position over time when compared to a reference point. Direction: A course along which someone or something moves.

Journal Setup Week 2 Bell Ringer Glue Here Force Notes 11 12

Force  Force is a push or pull on an object  Forces always have a direction and an amount.  Gravity is the basic force in the universe that attracts all objects.

Journal Setup Force Pictures Forces in Nature Pictures 13 14

Forces in Nature: Emergence of Seedlings  Stem pushes through the seed shell and through the soil.  Draw the force of the stem.

Forces in Nature: Turgor pressure  The force of water inside the cell pushing against the cell membrane & cell wall.  High Turgor pressure (well watered plants) keeps a plant rigid (standing up)  Low Turgor Pressure (low watered plants) cause plants to droop or wilt.  Draw a picture of the force of turgor pressure acting on the cells

Forces in Nature: Geotropism  A plant’s reaction to gravity  Roots will grow in the soil.  Draw the force acting on the roots. Label it!

Sort Cards  Sort the pictures based on the force that is used.

Forces in Everyday Life  Draw 2 pictures of how you use forces in everyday life  Include arrows showing the direction of the forces and the direction the object is moving. How do you use forces in everyday life?

Ticket Out: Force Assessment Questions  How are forces described?  Draw a pencil sitting on a desk. Label and describe the forces acting on the pencil.  If the pencil were to roll off the desk, label and describe the forces acting on the pencil.

Ticket Out :Writing about Forces  Describe a force?  What happens when a force is applied ?  Explain a time when you use a force.

We will complete the measuring force activity. I will write to explain how to measure a force. 9/1/2015 Agenda  Bell Ringer  How to use spring scale  Measuring Force  Ticket Out Bell Ringer Circle the correct answer to the question. Write to explain why the answer is correct, and why the other answer is incorrect.

How to use a Spring Scale  A spring scale measure the amount of force on an object in NETWONS.  How to use a Spring Scale Hold the spring scale in one hand. Be sure that you hold it high enough so you can see the arrow and the numbers clearly. Hook the object you are weighing onto the hook that hangs down from the scale. Look at the number where the needle stops on the dial face, that is the weight in Newton's.

Measuring Force Activity  Measure the force pulling and lifting with the spring scale for each object Book Wood Block Water Bottle  Draw a force diagram for each activity with arrows showing the direction of the force and direction the object is moving.  Answer Questions at the end How do you use a spring scale?

Ticket Out  Write to explain how to use a spring scale and the purpose of it.

We will evaluate situations of work. I will draw pictures of work and not work. Agenda  Bell Ringer  Work Video  Work Foldable  Ticket Out 9/3/2015 Bell Ringer Draw a picture of a force in everyday life. Include arrows showing the direction of the force and the direction the object moves.

Journal Setup Circle Map Work Pictures Work Foldable

What is work? WORK Share with your neighbor your examples of work?

What is Work? Work Video 1.Watch the Work video

20 What is work?  In science, the word work has a different meaning than you may be familiar with.  The scientific definition of work is: using a force to move an object a distance (when both the force and the motion of the object are in the same direction.)

21 Work or Not?  According to the scientific definition, what is work and what is not? a teacher lecturing to her class a mouse pushing a piece of cheese with its nose across the floor

22 Work or Not?  According to the scientific definition, what is work and what is not? a teacher lecturing to her class Not a teacher lecturing to her class Not a mouse pushing a piece of cheese with its nose across the floor Yes a mouse pushing a piece of cheese with its nose across the floor Yes

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24 What’s work?  A scientist delivers a speech to an audience of his peers.  A body builder lifts 350 pounds above his head.  A mother carries her baby from room to room.  A father pushes a baby in a carriage.  A woman carries a 20 kg grocery bag to her car?

25 What’s work? No  A scientist delivers a speech to an audience of his peers. No Yes  A body builder lifts 350 pounds above his head. Yes No  A mother carries her baby from room to room. No Yes  A father pushes a baby in a carriage. Yes No  A woman carries a 20 km grocery bag to her car? No

Draw Work and Not work  Under your circle map draw 2 pictures Write to explain how you know your picture is work and why your other picture is not work. WorkNot Work

Ticket Out  How do you know that scientific work has been completed?

Agenda  Bell Ringer  Calculating Work Notes  Calculating Work Rally Coach  Ticket Out 9/4/2015 We will calculate work. I will use the work formula to calculate work. Bell Ringer Circle the correct answer to the question. Write to explain why the answer you chose is correct, and why the other answers are incorrect.

29 Formula for work Work = Force x Distance  The unit of force is newton's  The unit of distance is meters  The unit of work is newton-meters  One newton-meter is equal to one joule  So, the unit of work is a joule

30 W=FD Work = Force x Distance Calculate: If a man pushes a concrete block 10 meters with a force of 20 N, how much work has he done?

31 W=FD Work = Force x Distance 200 joules Calculate: If a man pushes a concrete block 10 meters with a force of 20 N, how much work has he done? 200 joules (W = 20N x 10m)

Foldable Work Question  A girl uses 10 N of force to carry a bag of apples 3 m from the kitchen counter to the table. How much work does she do?  30j Explain how to use the work formula

Calculating Work: Rally Coach  If you sit at the odd # at your table complete the odd problems (1,3,5,7,9)  If you sit at the even # at your table complete the even problems (2,4,6,8,10)  As your partner completes their problems you serve as the coach, guide them and make sure they are completing everything correctly. Explain and make corrections

Ticket Out  What unit is work measured in?

Objective : I will show evidence of work by completing calculating work practice problems. 9/18/2014 Agenda  Bell Ringer  Calculating Work Problems  Ticket Out Bell Ringer Answer the questions in the Friday box on your bell ringer.

Calculating Work  Read the passage.  Answer questions 16, 17 and 18  Complete independent work problems

Work Problem  Write a work calculation problem.  Make sure you are using an everyday situation of work.  Include an amount of force and the distance the object moves. Rally Robin examples of scientific work you could use to write your work problem.

Ticket Out  Write to explain everything you know about forces and work, using at least 30 words.