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What distinguishes the three different classes of levers found in the human body? |
where the components of the lever are located |
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Matter is __________. |
something that has mass and occupies space |
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The ankle is a third class lever. |
False |
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Swinging a tennis racket against a ball is an example of a third class lever |
True |
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What is BEST to say about a runner who is running at a constant velocity? |
Their acceleration is zero |
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What lever has resistance between the axis (fulcrum) and the force (effort)? |
second |
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Second and third class levers both have __________ |
the fulcrum at one end of the lever |
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According to Newton’s second law of motion, force is equal to mass times acceleration |
True |
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Second and third class levers are differentiated by __________. |
the location of the load |
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Which of the following is NOT a component of a lever? |
tension |
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