4:4VOCABULARY

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Across
  1. 7. it is a point where electrons enter an electrical circuit that is called the "source" of electrons
  2. 8. the ratio of a force produced by a performance of a machine
  3. 9. the state or quality of being efficient
Down
  1. 1. the sum of potential energy and kinetic energy
  2. 2. the energy in which something has an electrical charge and other factors
  3. 3. a basic/east mechanical devices for adding a force
  4. 4. an electric charge that is often carried by moving electrons
  5. 5. energy that can be in motion
  6. 6. a force to move an object from a distance and same direction