Yr 7 Physical Science Key Words

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Across
  1. 5. A type of lever with an axle acting as it’s fulcrum.
  2. 6. A force that can attract or repel magnetic material.
  3. 9. The amount of matter in a substance.
  4. 15. A device that is used to measure forces.
  5. 18. A device used to make a task easier to do.
  6. 20. The attraction between an object and the Earth.
  7. 21. A decrease in speed.
  8. 24. The point that a lever pivots around.
  9. 25. An increase in speed.
  10. 29. To design an object that flows through the air or water with less resistance.
Down
  1. 1. Small regions inside a magnet that behave like mini-magnets.
  2. 2. A force that acts between charged objects.
  3. 3. An object that produces a magnetic field.
  4. 4. A machine that requires a small movement of an effort to produce a large movement of a load.
  5. 7. A force that acts on an object from a distance.
  6. 8. A simple machine made of a rod which pivots around a point.
  7. 10. The tendency of an object to resist change in its motion.
  8. 11. A substance that lets charge flow through it easily.
  9. 12. A substance that does not let charge flow through it.
  10. 13. The force of gravity pulling an object towards the Earth.
  11. 14. A double inclined plain that moves through an object.
  12. 16. A wheel with teeth used to turn things.
  13. 17. A simple machine with a spiral groove that can be used to attach objects together.
  14. 19. The force applied to a lever to overcome the load.
  15. 22. A push or pull that can change an object’s motion
  16. 23. A simple machine made of a grooved wheel that can be used to change the direction of a force.
  17. 25. The shaft that a wheel rotates on.
  18. 26. The unit used to measure force.
  19. 27. The path that an object takes around a planet or star.
  20. 28. The force that acts against an object’s movement.