GCSE Physics Paper 1

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Across
  1. 2. A positively charged subatomic particle found in the nucleus.
  2. 3. The capacity to do work or cause change, stored in particles as kinetic and potential energy.
  3. 5. The amount of matter in an object, measured in kilograms.
  4. 6. A type of nuclear radiation consisting of two protons and two neutrons.
  5. 7. Atoms of the same element with different numbers of neutrons.
  6. 10. The emission of energy as electromagnetic waves or particles.
  7. 11. The change of state from gas to liquid.
  8. 15. The rapid vaporization of a liquid when it reaches its boiling point.
  9. 16. Mass per unit volume of a substance, usually measured in kg/m³.
  10. 18. A physical form of matter: solid, liquid, or gas.
  11. 19. A negatively charged subatomic particle found in shells around the nucleus.
  12. 21. The amount of space an object occupies.
  13. 23. Hidden energy absorbed or released during a change of state without a temperature change.
  14. 24. High-energy electromagnetic radiation emitted from a nucleus.
Down
  1. 1. The total energy stored inside a system due to the motion and position of particles.
  2. 4. The slow change of a liquid into a gas at the surface, below boiling point.
  3. 5. The process of changing from solid to liquid.
  4. 8. A property per unit mass, such as specific heat capacity or specific latent heat.
  5. 9. A transformation between states of matter, such as melting or boiling.
  6. 12. The direct change from solid to gas without becoming liquid.
  7. 13. The force exerted per unit area by particles colliding with surfaces.
  8. 14. A neutral subatomic particle found in the nucleus.
  9. 17. The dense central part of an atom containing protons and neutrons.
  10. 20. A type of radiation where a neutron changes into a proton and emits an electron.
  11. 22. The smallest unit of an element, made of protons, neutrons, and electrons.