Unit 4: Machines
Across
- 4. A simple machine that is a variation of the lever; consists of a large wheel fixed to a smaller wheel that rotates together
- 6. An inclined plane with either one or two sloping sides; a simple machine
- 9. The point on which a lever rotates or pivots
- 10. Two or more simple machines working together
- 13. The force exerted by the machine
- 14. An arrangement of several pulleys that allows a person to lift heavy machinery
- 16. Amount of work done per unit of time
- 17. An inclined plane wound around a cylinder; a simple machine
- 18. The SI unit of power; one watt is one joule of work per second
Down
- 1. A slanted surface used to raise objects; a simple machine
- 2. The distance from the fulcrum to the resistance force in a lever
- 3. The amount by which the applied force is multiplied by a machine
- 5. The place on a level where the effort force is applied
- 7. The ratio of the work output of a machine to its work input
- 8. A device that makes work easier by changing the speed, direction, or amount of force; it consists of only one machine
- 11. Equals 1000 watts; watt is a very small unit of power
- 12. A bar free to rotate around a point; a simple machine; consists of an effort arm, fulcrum, and resistance arm
- 15. The force you apply to the machine