## 6.2 - Inclined Planes

**Ramps**

A ramp changes the magnitude of the force required to get an object up to a certain height. The longer the ramp is, the less force that is needed to go the height.

Here are the variables involved:

1. The height of a ramp is the load distance.

2. The length of the ramp is the effort distance.

3. The weight of whatever object you are moving is the load force.

4. The force that you actually push the object with is the effort force.

**Screws**

A screw is just a ramp wrapped around a cylinder. The greater the number of threads that the screw has, the longer the distance that the ramp is and therefore, the smaller the force needed to turn it.

**Wedges**

A wedge is used to change the direction of a force. When a doorstop is inserted under the door the force you apply is in one way while the force that holds the door is perpendicular to it. A wedge is used to change the direction of a force. When a doorstop is inserted under the door the force you apply is in one way while the force that holds the door is perpendicular to it. Anything that

*cuts*is also considered to be a wedge.

## 6.2 Sample Problem

## 6.2 Review Questions

6.2_review_questions.pdf | |

File Size: | 80 kb |

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