Year 8 - Physics review

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Across
  1. 3. The unit used to measure force
  2. 4. materials like metals are good .............
  3. 6. A 400 N child sits 0.1 m from the pivot on a seesaw. What is the child’s moment in Nm?
  4. 8. this type of electrical circuit has only one loop or one way round
  5. 10. This causes your ears to pop if diving under water
  6. 11. a non-contact force
  7. 13. The name given to liquid or a gas
  8. 15. this happens between two poles which are the same e.g.N - N, S-S
  9. 16. the component that gives energy in an electrical circuit
  10. 20. “The particles are moving quickly and randomly in all directions.” Which state of matter is being described?
  11. 21. A component in an electric circuit that resists the flow of current.
  12. 23. to calculate the moment of a force you multiply force and ……………………….
  13. 24. Particles in a gas c…………………………. with the walls of a container
  14. 25. unit used to measure moments
  15. 26. The unit for current
  16. 27. As you dive under water the water pressure ………………………………….
Down
  1. 1. the unit used to measure mass in physics
  2. 2. As you climb up a mountain the air pressure ………………………………..
  3. 5. this metal is a very good conductor
  4. 7. A shoe has an area of 2 cm2. A woman exerts a pressure of 700 N/cm2. What is her weight in N? (4 words – spell them!)
  5. 9. a material that prevents heat loss
  6. 10. this type of electrical circuit has several loops
  7. 12. The extra length of a spring when it is stretched under tension. Begins with “e”
  8. 14. This flows around wires in a circuit
  9. 17. a south pole and a north pole will ..........
  10. 18. A type of magnet made by coiling wire around an iron nail
  11. 19. the force that happens when two surfaces rub against each other
  12. 22. “The particles are vibrating, touching, regularly arranged.” Which state of matter is being described?