Physical Science

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Across
  1. 2. Atomic particles with no electrical charge.
  2. 3. Force that pulls objects toward each other.
  3. 6. A disturbance that transfers energy through matter.
  4. 12. Negatively charged particles orbiting the nucleus.
  5. 13. Stored energy based on position.
  6. 15. The amount of matter in an object.
  7. 16. The smallest unit of an element.
  8. 17. Resistance of an object to change its motion.
  9. 18. Two or more atoms bonded together.
  10. 19. Mass per unit volume of a substance.
  11. 20. Vibrations that travel through air or water.
Down
  1. 1. A push or a pull on an object.
  2. 4. Speed of an object in a specific direction.
  3. 5. Energy of an object in motion.
  4. 7. The amount of space an object occupies.
  5. 8. Force that opposes motion between two surfaces.
  6. 9. Positively charged particle in an atom's nucleus.
  7. 10. Distance traveled divided by time.
  8. 11. A pure substance made of only one kind of atom.
  9. 14. The ability to do work.