Across
- 3. mental of phisical activity put in the effort in order to achive a purpose or result
- 5. any of the basic mechanical devices for applying a force
- 8. a network consisting of a closed loop, giving a return path for the current
- 9. a ratio of force produced by a machine to the force applied to it, used in assessing the performance of a machine
Down
- 1. the sum of potential enrgy and kinetic energy
- 2. a flow of electric charge
- 4. when energy is being used by anyone or anything and has movement
- 6. the energy of an object is being stored, no movement
- 7. an action designed to achieve this