Across
- 1. one of six tools that make work easier
- 4. two inclined planes put together to form a v-shape, used to split, separate or raise an object
- 8. a push or pull on an object that causes it to change direction
- 9. ability to do work
- 11. a device for doing some kind of work
- 13. the result of a force moving an object work = effort force x distance
- 15. an opposing force that usually produces heat.
- 16. lever: load, effort, fulcrum
- 18. a stiff bar that moves on a fixed point called a fulcrum
- 20. lever: effort, load, fulcrum
Down
- 2. a sloping surface connecting a lower surface at an angle
- 3. a wheel with a groove that a rope fits into, used to lift or move objects
- 4. a wheel that turns on a center post or rod
- 5. a wheel with teeth, one gear connects to and turns another
- 6. more than one simple machine working together
- 7. an invisible force that pulls all objects with mass towards each other. Example everyone on Earth feels this force.
- 10. lever: effort, fulcrum, load
- 12. the amount of energy exerted
- 14. the amount of area an object will move
- 17. part of a lever that supports length of bar
- 19. the amount of weight that needs to be moved
- 20. an inclined plane wrapped around a shaft