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Forces and Motion
Guide
| Question | Answer |
|---|---|
| position | the location of an object |
| motion | a change in position |
| force | a push or pull; a force can make an object move |
| work | what is done when a force moves an object or changes an object's motion |
| distance | is the amount of space between two objects or places |
| speed | describes how quickly an object moves |
| gravity | is a pulling force between two objects, such as you and Earth |
| friction | a force that helps stop the motion of an object |
| Kinetic energy | energy in motion |
| Potential energy | energy at rest |
| In order to measure speed | you need to know how far an object traveled and how long it took to go there. |
| Under, left, and right | are used to describe an object's position |
| If the Sun is directly overhead at noon | your shadow is shorter |
| Sandpaper, rough stones, and rubber | increase friction |
| Energy | makes changes in motion possible |
| Work is done | when a force changes an object's motion |
| How does the Sun appear to move across the sky? | The Earth rotates on its axis, so the Sun is at different positions during the day. |
| Explain why hitting a ball is work? | In order for work to be done, an object needs to move. So, if a ball is hit, the ball moves. Therefore, work is being done. |
Created by:
kristinfritz
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