Across
- 2. The action of applying a force to an object to move it
- 3. The energy that is spent to accomplish a task
- 8. One of the working parts of a system or machine
- 9. A simple machine consisting mainly of a beam
- 11. The ratio of the force produced by a machine
- 13. These are round, toothy mechanisms often found in clocks, watches and motors
- 14. Making something run without the need for outside interference
- 16. Energy, work or power needed to drive a machine
- 18. The main action in operating this simple machine is pulling
- 19. These are important parts of a system with wheels
Down
- 1. The push or pull action applied to an object in order to move it
- 4. What occurs when two solid surfaces rub together
- 5. The technology applied to the design and operation of robots
- 6. The benefit achieved when a machine or system is used successfully
- 7. A machine or system that works very well to accomplish its goal is said to have a high degree of this
- 10. The work performed by machines is not possible without this
- 12. This is often the result of friction
- 15. The result of using energy, work or power to may a system operate smoothly
- 17. This can be put under something heavy to make it easier to move