Physics Vocabulary

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Across
  1. 1. The force (a push or pull) that acts between magnets (including the Earth) and magnetic objects
  2. 5. The charge on an atom or object with more electrons than protons
  3. 6. The constant speed reached by a falling body.
  4. 8. A magnet that stays magnetic only while it touches a permanent magnet, or one that is magnetic for a very short time
  5. 10. A mixture of a metal with a non-metal or another metal
  6. 16. The charge on an atom or object with fewer electrons than protons.
  7. 17. A map of lines showing the size and direction of a magnetic force.
  8. 20. A measure of the amount of material in an object of substance
  9. 22. A force that acts only between objects that are touching
  10. 23. The force of air pushing on an object as the object moves through the air.
  11. 26. Substance with large particles that can slide easily over each other.
  12. 28. A very small particle that makes up all things.
  13. 29. The force of attraction that exists between any two bodies in the universe that have mass.
  14. 30. A force that acts between objects even though the objects are not touching
  15. 32. Tiny, but heavy, particles found in the nucleus of an atom.
Down
  1. 2. Very light, negatively charged particles inside an atom.
  2. 3. A non-contact force of electric charges at rest.
  3. 4. A force that acts against the movement of an object.
  4. 7. An opposing force
  5. 9. To push, pull or twist
  6. 11. The ‘firmness’ of the surface of a liquid created by the attraction between particles at the surface.
  7. 12. A push, pull or twist. Forces are measured in newtons
  8. 13. A force that acts against the movement of an object.
  9. 14. A magnet that retains its magnetic effect for many years
  10. 15. Tiny, but heavy, particle found in the nucleus of an atom.
  11. 18. A substance that flows and has no fixed shape.
  12. 19. The unit for measuring forces
  13. 21. A measure of the size of the gravity force pulling an object towards the centre of a massive body, such as the Earth.
  14. 24. A force which keeps objects floating
  15. 25. The force at the Earth’s surface is the pull on objects near its surface towards the centre of the Earth
  16. 27. Shaped so that drag through a fluid is minimised
  17. 31. A roundish structure inside cells that acts as the control centre for the cell.