Physics Review Crossword Puzzle

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Across
  1. 5. An optical device that uses mirrors to see over or around obstacles.
  2. 6. A force caused by moving electric charges that attracts or repels materials.
  3. 7. The combination of sound waves with frequencies that form simple, stable ratios.
  4. 11. plane A flat, slanted surface that reduces the force needed to lift an object.
  5. 13. Groups of two or more atoms chemically bonded together.
  6. 14. A machine where a wheel rotates around a central axle to amplify force.
  7. 16. An inclined plane wrapped around a cylinder that converts rotation into linear force.
  8. 19. The flow of electric charge.
  9. 21. A dark chamber that projects an inverted image through a small opening.
  10. 22. A unit of power equal to 746 watts.
  11. 23. The branch of science that studies matter, energy, motion, forces, and their interactions.
  12. 25. The smallest units of an element that retain its properties.
  13. 26. The ability to do work or cause change.
  14. 27. Electromagnetic radiation visible to the human eye.
  15. 28. The increase in vibration amplitude when a system is driven at its natural frequency.
  16. 30. A combination of sound frequencies that produces an unstable or harsh sound due to interference.
Down
  1. 1. The difference in pitch between two sounds, determined by their frequency ratio.
  2. 2. The bouncing of light off a surface.
  3. 3. A material that conducts electricity and heat and is malleable.
  4. 4. Longitudinal mechanical waves caused by vibrations traveling through a medium.
  5. 8. A cartoonist known for depicting complex machines that perform simple tasks.
  6. 9. A grooved wheel with a rope or cable used to change the direction of a force.
  7. 10. The bending of light as it passes through different materials.
  8. 12. Particles that carry light energy.
  9. 15. A magnet created by electric current flowing through a wire coil.
  10. 17. A rigid bar that rotates around a fixed point to move a load.
  11. 18. The transfer of energy when a force moves an object over a distance.
  12. 20. A transparent object that bends light to form images.
  13. 23. The rate at which work is done or energy is transferred.
  14. 24. Basic mechanical devices that change the size or direction of a force.
  15. 29. A triangular shaped tool used to split, cut, or push materials apart.