7th Grade Final Review

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Across
  1. 1. The unit for voltage
  2. 4. A device that converts mechanical energy into electrical energy
  3. 6. What two same poles do
  4. 7. The portion of the EM spectrum with the highest energy and shortest wavelength
  5. 11. ____ energy is affected by gravity, mass, and height
  6. 12. Sound cannot travel through a ___
  7. 14. When a wave bounces off of an object
  8. 15. The unit for current
  9. 16. Energy that is dependent on motion
  10. 17. When light passes through an object
  11. 19. The unit for resistance
  12. 24. A type of magnet that can be turned on and off
  13. 26. A device that converts electrical energy into mechanical energy
  14. 28. At the ____ of a magnet, the magnetic field is strongest
Down
  1. 2. A wave that moves at a right angle to the motion of the wave
  2. 3. If we increase resistance in a circuit, and keep the voltage the same, current will ____
  3. 5. A ____ circuit has multiple paths for electrons to flow
  4. 6. When a wave bends
  5. 8. The material a wave moves through
  6. 9. Waves with shorter wavelengths have ____ energy than those with longer wavelengths
  7. 10. The distance between crests of a wave
  8. 13. The height of a wave
  9. 18. This is the state of matter sound travels fastest through
  10. 20. Without ____ there is no kinetic energy
  11. 21. Energy, like matter, cannot be created or destroyed - however, we can ___ it from one for to another
  12. 22. The unit for energy
  13. 23. The unit for frequency
  14. 25. The total ____ of something is the potential plus the kinetic energy
  15. 27. A circuit that is not complete is also called ____