Potential And Kinetic Energy Worksheet (Page 27 of 29) in pdf

Potential And Kinetic Energy Worksheet Page 27

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9.3

The relationship between a lever’s input force and output force depends on the length of the input arm and

output arm . The input arm is the distance between the fulcrum and input force. The output arm is the distance

between the fulcrum and output force.

If the input and output arms are the same length, the forces are equal. If the input arm is longer, the input force is

less than the output force. If the input arm is shorter, the input force is greater than the output force.

1. Label the input arm (IA) and output arm (OA) on each of the levers you labeled above and on the previous

page.

2. In which of the levers is the input force greater than the output force?

3. In which of the levers is the output force greater than the input force?

4. In which of the levers are the input and output forces equal in strength?

5. Find two other examples of levers. Draw each lever and label the fulcrum, input force, output force, input

arm, and output arm. State whether the input or output force is stronger.

Potential And Kinetic Energy Worksheet Page 27