Across
- 6. the amount of energy in a sound wave
- 8. two or more simple machines
- 9. a reflected sound
- 10. forces that cancel each other out when acting together on a single object
- 13. the tendency of a moving object to stay in motion, or an object at rest to stay at rest
- 17. the transfer of heat through liquids and gases
- 20. forces that are not equal
- 21. any change over time in the speed or direction of a moving object
- 24. metric units used to measure force
- 26. the flow of thermal energy
- 27. the location of an object
- 29. things that transfer heat well
- 30. the ability to do work
Down
- 1. how far apart two points are
- 2. the highness or lowness of sound
- 3. the object being moved
- 4. the transfer of energy through space
- 5. the number of vibrations in a given amount of time
- 7. stored energy
- 11. a machine that has only a few parts
- 12. the flow of heat between two touching objects
- 13. things that do not transfer heat well
- 14. energy of motion
- 15. the distance from the peak of one wave to the peak of the next
- 16. is done when a force is used to move and object
- 18. back and forth motion
- 19. the force used to do work
- 22. an object's speed and direction
- 23. a force that works between the surfaces of objects that touch
- 25. the loudness of sound
- 28. an area of crowded particles followed by widely spaced particles