MSES 202
LAB 4
Lever System


Lever Classification (Pages 445-451)

1st class: The fulcrum is between the effort (force) and the resistance.

 

2nd Class: The resistance is between the fulcrum and the effort.

 
 
3rd Class: The effort is between the resistance and the fulcrum.

Test your knowledge
 
(For each question select one response and then click on the submit button. )

1. The following diagram shows an example of a _____ class lever.


1st class lever
2nd class lever
3rd class lever

Use the diagram below to answer questions 2-5.
(Click on the Submit button after entering each response.)
2. In the example above, if the arm remains rigid, which structure is the fulcrum?
3. Which of the following structures provides the effort to keep the arm from lowering?

4. Which of the following provides the majority of the resistance?

5. What type of lever is this an example of?

 

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This page was last updated on April 20, 2000. Please direct any comments or questions regarding this page to Prof. Harrison at kharrison@po-box.esu.edu