click below
click below
Normal Size Small Size show me how
physical science voc
Vocabulary words
| Question | Answer |
|---|---|
| Simple machines | make work easier |
| Mass | amount of matter that makes up an object |
| Force | push or pull |
| Friction | a force that causes objects in motion to speed up or slow down when two surfaces rub together |
| Speed | a measure of how far an object moves in a certain amount of time |
| Motion | movement or a change in an objects postition |
| Position | the place where an object is located |
| Gravity | a force that pulls things toward earth |