Physics Crossword 4

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Across
  1. 5. one of the two planets in our solar system with no moons (5)
  2. 6. charged atoms (4)
  3. 8. the change in wavelength of light from stellar objects moving away from Earth (8)
  4. 10. h is the ____ constant (6)
  5. 11. the matter-antimatter imbalance is known as the ____ problem (9)
  6. 14. known for his discovery of the law of elasticity (known as ____’s Law) (5)
  7. 16. state of a switch that prevents current from flowing (4)
  8. 17. unit named after an Italian physicist (4)
  9. 19. the resistance of a ____ resistor cannot be changed (5)
  10. 24. measures the current in a circuit (7)
  11. 26. physicist whose discovery was inspired by an apple tree (6)
  12. 27. the S in LASER (10)
  13. 29. planet with an orbital period of 365 days (5)
  14. 30. the constant c is the speed of ____ (5)
  15. 31. the resultant colour after mixing red and blue light (7)
  16. 32. the C in LHC (8)
Down
  1. 1. distance / time (5)
  2. 2. in nuclear fission, the large atomic nucleus splits into two ____ nuclei (8)
  3. 3. the oldest planet in our solar system (7)
  4. 4. known as the fourth state of matter (6)
  5. 7. God of the sea and a planet (7)
  6. 9. prefix shown with the letter n (4)
  7. 12. prefix shown with the letter μ (5)
  8. 13. a particle with the same mass but opposite charge to an electron (8)
  9. 15. unit of temperature named after a Swedish physicist (7)
  10. 18. Greek letter used as the symbol for wavelength (6)
  11. 20. there are two of this type of quark in a neutron (4)
  12. 21. the energy needed to change from a liquid to a gas is the specific latent heat of ____ (12)
  13. 22. a type of quark found in particles such as kaons (7)
  14. 23. a machine that converts electrical energy to mechanical energy (5)
  15. 25. known as “the father of electricity” (7)
  16. 28. the force acting on an object due to gravity (6)