| A | B |
| force | push or pull that makes something move |
| location | place where something is |
| wind | moving air |
| gravity | force that pulls things toward the center of Earth |
| motion | act of moving |
| friction | force that slows down or stops movement of two things that are rubbing against each other |
| magnetism | the force that attracts metal |
| sound | kind of energy that lets you hear |
| vibrate | move back and forth very fast |
| loudness | how loud or soft a sound is |
| pitch | how high or low a sound is |
| sonar | way to use sounds to locate objects under water |
| music | combination or sequence of sounds that people enjoy listening to |