Mechanics Puzzle

4. The result of force out / force in is _________ advantage.
7. work out/work in
11. The meaning of HP in mechanics
12. force/area
13. Energy of speed is ______ energy.
15. In machines, the ______ efficiency is usually less than the ideal.
17. The system of measurement used worldwide.
18. Heat waste is ______ pollution.
20. machines Machines that have no power supply, like levers, pulleys, inclined planes, etc.
21. When anti-matter and matter meet, they produce _________.

1. distance in/distance out
2. The more massive an object, the more it resists ___________.
3. _____ arm is the distance from the fulcrum to the force.
5. Stored up energy capable of doing work is ______ energy.
6. _______cylinders are used to produce very large forces.
8. Mass plus energy is constant because of ________'s law.
9. Usually a machine is designed to give more _____ out than you put in.
10. The point on which a lever rests or is supported and on which it pivots.
14. _____ mechanical advantage is when the distance in is equal to the distance out.
16. Force due to gravity
19. Hydrolic cylinders are run by pressure on a _____.