Across
- 4. This is the rate at which work is done on an object over time.
- 5. When a force is in the opposite direction of motion, ________ work is done.
- 10. This simple machine is a slanted surface used to raise an object.
- 12. A wedge is best utilized when it has a _____________ shape so it can be used to cut, split, or tighten objects using a change in direction.
- 13. This simple machine utilizes a chain, belt, rope or thread wrapped around a wheel to complete a task.
- 14. When finding the mechanical advantage of a wheel-axle machine, you need to take the ______ of the wheel and divide it by the _____ of the axle.
- 15. This class lever has the fulcrum located between the effort force and the resistance/load.
- 19. The closer the _________ of a screw are together, the greater the mechanical advantage is of the screw.
- 21. The goal of a ________ is to make work easier by changing size, direction or the distance over which a force acts.
- 22. Pulleys work by exerting a certain amount of effort force and/or by changing the ___________ of the force applied on the object.
- 25. This simple machine is simply an inclined plane that moves.
- 26. This simple machine is actually an inclined plane wrapped around a cylinder.
Down
- 1. This is the force applied to move a load.
- 2. This simple machine is a bar that is free to move or pivot about a fixed point when an input force is applied.
- 3. This is the ratio of force produced by a machine to the force applied to it, used in assessing the performance of a machine.
- 6. The standard unit of work is a _________.
- 7. This is the pivot point of a lever in which it will rotate around.
- 8. This term is the weight or resistance that a lever is trying to move.
- 9. This is the force applied BY a machine.
- 11. This type of machine is a combination of two or more simple machines.
- 16. This is the force applied TO a machine.
- 17. This class lever has the resistance/load in between the fulcrum and effort force.
- 18. This simple machine is just a lever that rotates in a circular motion around an axis.
- 20. You can increase the mechanical advantage of a wedge by ___________ it.
- 23. This class lever has the effort force in between the fulcrum and the resistance/load.
- 24. When a force is in the same direction of motion, _________ work is done.
- 25. THis is the amount of force exerted on an object parallel to the direction of motion multiplied by how far the object is displaced.
