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Vocabulary List. Lever Fulcrum 1 st Class Lever 2 nd Class Lever 3 rd Class Lever. Lever. 1 st Class. Fulcrum. 2 nd Class. 3 rd Class. Levers. Lever: A rigid bar that is free to pivot, or _______, on a fixed point. Fulcrum: The _________ point that a lever pivots around.
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Vocabulary List • Lever • Fulcrum • 1st Class Lever • 2nd Class Lever • 3rd Class Lever
Lever 1st Class Fulcrum 2nd Class 3rd Class
Levers Lever: A rigid bar that is free to pivot, or _______, on a fixed point. Fulcrum: The _________ point that a lever pivots around.
1st Class Lever • Give 2 characteristics - ________ is in the middle. - Changes the _________of the input force.
2nd Class Lever • Give 2 characteristics - The ________ is in the middle. - Increase the ______.
3rd Class Lever • Give 2 characteristics - _________ is in the middle. - Increase the ___________.
- Simple Machines Levers • Levers are classified according to the location of the fulcrum relative to the input and output forces.
Mechanical Advantage • Find the distance from Fulcrum to Input Force * Example = 4 meters • Find the distance from Fulcrum to Output Force * Example = 1 meter C) Take A divided by B * 4 m ÷ 1 m = 4