Crossword Puzzle

4. The rate at which one form of energy is transformed into another.
7. A state of matter with no definite shape or volume.
8. A wave that moves the medium at right angles to the direction in which the wave travels.
11. The change in state from a solid directly to a gas without passing through the liquid state.
12. The change of state from a liquid to a gas.
14. The ability to do work or cause change.
15. The change in state from a gas to a liquid.
17. A wave that appears to stand in one place, even though it is two waves interfering as they pass through each other.
19. The number of complete waves that pass a given point in a certain amount of time.
21. The material through which a wave travels.
22. A state of matter that has a definite shape but has no definite volume.
23. The total kinetic and potential energy of all the particles of an object.
25. The energy transferred through space by electromagnetic waves.

1. The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin.
2. A liquid's resistance to flowing.
3. The force pushing on a surface divided by the area of that surface.
5. The increase in the amplitude of a vibration that occurs when external vibrations match an object's natural frequency.
6. The distance between two corresponding parts of a wave, such as the distance between two crests.
9. A state of matter that has a definite shape and a definite volume.
10. A push or pull exerted on an object.
13. The process by which molecules at the surface of a liquid absorb enough energy to change to a gas.
16. A wave that moves the medium in a direction parallel to the direction in which the wave travels.
18. A wave that requires a medium through which to travel.
20. The state in which one object's distance from another is changing.
24. Force exerted on an object that causes it to move.