1. Vocabulary
Physics

2. Motion Definition – the act of moving Examples –
A swing moves back and forth
A merry-go-round moves around and around

3. Force Definition – push or pull that makes something move Examples –
Pull a wagon
Push a swing

4. Gravity
Definition – force that pulls things to the center of the Earth
Example –
Things fall

5. Work Definition – happens whenever a force makes an object move
Examples –
Push the crayon across the desk
Push something up a hill

6. Friction
Definition – is a force that makes moving objects slow down or stop moving
Examples –
Sand slows down a ball
Grass slows down a bike

7. Simple Machine Definition – a tool with few or no moving parts
Examples –
Screw
Can opener
A wheel
Screwdriver

8. Attract Definition – pull toward Example – Magnet pulling toward
the chalk board

9. Repel Definition – to push away Example – Two magnets pushing
away from each other