Across
- 1. – Space an object occupies.
- 2. Attraction between masses.
- 3. – Mass per unit volume.
- 5. Repeating disturbance that transfers energy.
- 6. – Energy due to motion.
- 8. – Negatively charged subatomic particle.
- 10. – How fast something moves.
- 12. – Measure of duration.
- 13. Substance with a definite composition.
- 14. – Energy that travels as vibrations through a medium.
- 15. – Pure substance of one kind of atom.
- 17. – Device for measuring mass.
- 19. – Change in position over time.
- 21. – Flow of electric charge.
- 22. – Force of gravity on an object’s mass.
Down
- 1. – Device that emits a narrow, intense beam of light.
- 3. – Object that produces a magnetic field.
- 4. – Closed path where electric current flows.
- 5. Rate of doing work or using energy.
- 7. – Anything with mass and volume.
- 8. – A push or pull.
- 9. – Force per unit area.
- 11. – Transparent piece that bends (refracts) light.
- 13. Single wave disturbance.
- 15. – Amount of matter.
- 16. – Force that resists sliding motion.
- 17. – Ability to do work or cause change.
- 18. – Smallest unit of an element.
- 20. Energy transfer when a force moves an object.
- 21. – State of matter with fixed shape and volume.