Energy

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Across
  1. 3. When an object is lifted to a higher place, it is given gravitational ________ energy.
  2. 4. _______ is the rate of doing work.
  3. 7. Weight is the force due to the pull of ________.
  4. 8. The SI unit of weight is ________.
  5. 9. A machine is never 100% _________.
Down
  1. 1. The Principle of _________ of Energy states that energy can be changed from one form to another, but it cannot be created or destroyed.
  2. 2. Mass is measured in?
  3. 3. Mass is the amount of ______ (matter) in an object.
  4. 5. Work done (_____) = force (newtons) x distance moved (metres).
  5. 6. All moving objects have _______ energy.