Physics Crossword

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Across
  1. 1. type of wave used to heat up your food
  2. 4. type of wave that makes your eardrum vibrate
  3. 5. the number of laws of motion Newton has
  4. 8. one of the states of matter
  5. 11. the ____ spectrum includes microwaves, visible light and x-rays
  6. 14. they cause a change in momentum
  7. 15. the R in V = I x R
  8. 18. the least dense state of matter
  9. 19. electricity is distributed using the ____ grid
  10. 23. has the units metres per second squared
  11. 24. process used to turn a solid into a liquid
  12. 28. a planet and the name of a chemical element
  13. 29. location where sound can’t travel
  14. 30. the unit of power
  15. 31. renewable energy resource that uses heat from underground
  16. 33. the charge of a proton is ____
  17. 35. a non-renewable energy source commonly burnt in fireplaces
  18. 36. physicist who has the unit of force named after him
  19. 37. the L in LED
  20. 38. responsible for the tides
  21. 39. one of the two poles of a magnet
  22. 40. a planet famous for its rings
  23. 41. the flow of electrical charge
  24. 42. different forms of the same chemical element
Down
  1. 2. measures the current flowing through an electrical circuit
  2. 3. the unit of energy
  3. 4. has the units metres per second
  4. 6. an early model of the atom was the Plum ____ model
  5. 7. renewable energy resource that uses turbines
  6. 9. equal to mass divided by volume
  7. 10. the largest planet in our solar system
  8. 12. when waves change direction at a boundary
  9. 13. known as “the red planet”
  10. 16. touching a live wire can give you an ____ shock
  11. 17. type of energy stored by a moving object
  12. 18. the force that causes things to fall
  13. 20. the centre of the atom that has protons and neutrons
  14. 21. the unit of mass
  15. 22. the unit of current
  16. 25. one of the two poles of a magnet
  17. 26. a planet named after the Roman God of the sea
  18. 27. the only known planet with life on it
  19. 32. they orbit the centre of the atom in shells
  20. 33. used to be a planet
  21. 34. number of planets in our solar system
  22. 36. the charge of an electron is ____
  23. 39. the unit of time