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