Across
- 3. is a measure of the average energy of random motion of particles of matter
- 6. vaporization takes place at the surface of a liquid
- 8. is a particle that does not carry a charge
- 9. groups of two or more atoms held together by chemical bond
- 11. heat is transferred from one particle of matter to another without the movement of the matter
- 13. is the number of complete waves that pass a given point in a certain amount of time
- 15. is the energy of matter in motion
- 18. states that the angle of incidence equals the angle of reflection
- 20. the electromagnetic waves with the shortest wavelengths and highest frequencies
- 21. the force that two surfaces exert on each other when they rub against each other
- 22. of a substance is its mass per unit volume
- 23. that has mass and takes up space
- 24. of a sound is a description of how high or low the sound seems to a person
- 25. the ability to do work or cause change
Down
- 1. is a particle that carries a negative charge
- 2. when you exert a force on an object that causes the object to move some distance
- 4. is a particle that carries a positive charge
- 5. heat is transferred by the movement of currents within a fluid
- 7. is the transfer of energy by electromagnetic waves
- 10. is the rate at which work is done
- 12. electromagnetic waves that you can see
- 14. a change from the gas state to the liquid state
- 16. is a measure of the amount of matter in an object
- 17. is the basic particle from which all elements are made
- 19. is a material through which charge can flow easily