7th Grade Review 2023
Across
- 3. Without ____ there is no kinetic energy
- 7. The unit for voltage
- 10. A type of magnet that can be turned on and off
- 12. A circuit through which current cannot flow
- 13. The absence of a medium
- 16. A device that converts electrical energy into mechanical energy
- 18. Sound travels fastest through...
- 19. The material a wave moves through
- 21. The unit for frequency
- 22. High pitched sound has a __ frequency
- 23. When a wave bounces off of an object
- 24. When a wave bends
- 26. The unit for current
- 28. When light passes through an object
Down
- 1. The unit for resistance
- 2. At the ____ of a magnet, the magnetic field is strongest
- 4. Energy, like matter, cannot be created or destroyed - however, we can ___ it from one for to another
- 5. The total ____ of something is the potential plus the kinetic energy
- 6. The unit for energy
- 8. What two same poles do
- 9. A device that converts mechanical energy into electrical energy
- 11. A wave that moves at a right angle to the motion of the wave
- 14. Light with the shortest wavelength and highest energy
- 15. ____ energy is affected by gravity, mass, and height
- 17. Energy that is dependent on motion
- 20. The distance between crests of a wave
- 25. The height of a wave
- 27. A circuit with more than one path for electricity to flow through