Across
- 2. The amount of matter in an object, often measured in kilograms.
- 3. The maximum distance above a wave.
- 5. a negative charge.
- 8. The force that attracts a body toward the center of the Earth.
- 9. It can be potential or kinetic.
Down
- 1. The distance between crests of a wave.
- 4. The smallest unit of life.
- 6. The unit of force is named after the scientist.
- 7. push or pull upon an object.