Across
- 3. The amount of work you do depends on how much _____ you use to move an object.
- 4. The force applied to cause a simple machine to do work: __________
- 9. An inclined plane is a _______, sloped surface.
- 10. A ________ is the point on which the bar of a lever turns
- 11. A block and tackle allows you to use _____ force when lifting an object because the rope moves a greater distance.
- 14. A pulley is a _______ with a groove that can hold a rope.
- 16. The amount of effort needed on a lever is determined by the ______ between the effort and the fulcrum.
- 17. An object that makes work easier is called a ____________
- 19. plane A screw is a _____ _____ wound around an axle
- 21. A nail with a thread that twists up it is an example of a _______
- 23. A greater mass requires _______ force to move it.
Down
- 1. The force that resists the movement of objects against eachother: _________
- 2. A doorknob is an example of a ________
- 5. The inclined plane on a screw is called _______.
- 6. The force that pulls objects towards the Earth is called __________
- 7. plane A ramp to a building is an example of a ______ _______
- 8. A flagpole moving a flag up is an example of a _______
- 9. A _______ is a push or a pull.
- 12. A knife is an example of a _______
- 13. A change is position is called ___________
- 14. A force moving an object over a distance is called ________ .
- 15. The weight of the object being moved is called __________
- 18. A paint-can opener prying up a lid is an example of a _______
- 20. planes A wedge is one or more _____ ______ used to force materials apart.
- 22. A lever is a ________ that turns on a point