PS: Lesson 4.3
Across
- 2. distance between two adjacent threads of a screw
- 4. simple machine consisting of a rope or cable that turns around a wheel
- 5. type of pulley that that connects to the object being moved
- 6. decreases IMA to become AMA
- 11. simple machine that has a slanted surface
- 13. a longer slope on an inclined plane _______________ mechanical advantage
- 14. any device that makes work easier by changing the size or direction of a force
- 17. number of classes of levers
- 19. compound machine used in the Tour de France
- 20. simple machine that consists of two back-to-back inclined planes
- 21. part of the screw where the blade is inserted
Down
- 1. simple machine that consists of two circular objects of different size
- 3. mechanical advantage of a block and tackle with one fixed and three movable pulleys
- 6. type of pulley that is attached to something that doesn't move
- 7. type of machine that results from the combination of two or more simple machines
- 8. simple machine that consists of an inclined plane wrapped around a cylinder
- 9. point at which a lever pivots
- 10. this increases as required force decreases
- 12. type of force that represents the amount of force without the use of a machine
- 15. ridge or inclined plane that wraps around the outside of a cylinder
- 16. simple machine made of a rigid bar that pivots at a fixed point
- 18. example of a second-class lever that is used in gardening