Lever Systems

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6 Terms

1
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What acts as the lever in the body?

Bones

2
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What acts as the fulcrum in the body?

Joints.

3
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What provides the effort in a lever system?

Muscle contraction.

4
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What is the load in a lever system?

The weight or resistance being moved.

5
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What is mechanical advantage?

When effort is farther from the fulcrum than the load, allowing more force with less effort.

6
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What is mechanical disadvantage?

When effort is closer to the fulcrum than the load, allowing faster movement but less power.