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U2C2A2 Record Sheet Key Question: How can you change the motion energy of an object? In other words, what happens to cause an object to increase or decrease.

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Presentation on theme: "U2C2A2 Record Sheet Key Question: How can you change the motion energy of an object? In other words, what happens to cause an object to increase or decrease."— Presentation transcript:

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2 U2C2A2 Record Sheet

3 Key Question: How can you change the motion energy of an object? In other words, what happens to cause an object to increase or decrease in motion?

4 Explore Your Ideas p 159

5 Explore Your Ideas How to Identify Mechanical Interactions Refer to How to Identify Mechanical Interactions pages 638-639

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21 What is the interaction between the girl and the bike?

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31 Explore Your Ideas Step 1 p 160 * students need 5 min to complete the chart

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33 net & soccer ball elasticBall slows down Ball’s motion energy decreases

34 player & ground frictionPlayer slows down Player decreases in motion energy

35 Parachute/ car & air drag Parachute /car slows down Parachute/ car decreases in motion energy

36 Explore Your Ideas Step 2 bottom of page 160

37 Objects you may SAFELY use: parachuter (see teacher) bouncy ball pin ball machine nerf football rubber bands (see teacher) hot wheel cars noise-maker paper airplane (yellow paper) paddle-ball a piece of styrofoam block

38 2. Draw a sketch of each set-up appliedfrictiondragelastic

39 Objects you may SAFELY use: parachuter (see teacher) bouncy ball pin ball machine nerf football rubber bands (see teacher) hot wheel cars noise-maker paper airplane (yellow paper) paddle-ball a piece of styrofoam block

40 applied friction drag elastic

41 applied friction drag elastic Which types of mechanical interactions decrease motion energy?

42 Make Sense of Your ideas 1.In general, how can you increase the motion energy of an object? You can increase the motion energy of an object when the source transfers energy INTO to receiver. Example: 2.In general, how can you decrease the motion energy of an object? You can decrease the motion energy of an object when the energy is transferred OUT of the object. Example:

43 Our Consensus Ideas How can you change (increase or decrease) the motion energy of an object? Mechanical interactions (applied, friction, drag, elastic) can cause changes in motion energy. An object will increase in motion energy when it receives a push or pull from the source. Also, an object will decrease in motion energy when it transfers energy to the receiver.

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