Zapped92 asked in Science & MathematicsPhysics · 1 decade ago

# Is a pendulum-like motion a wheel and axle?

Ok, here is basically what I have:

http://www.fileupyours.com/files/31770/simplemachi...

The red bar has a heavy weight (teal) at its end. A ball rolls down the green ramp and slightly bumps the red bar. The pink represents the fulcrum and the blue represents the path it takes. The pendulum then strikes something... Is this a Wheel+axle or a third class lever?

Update:

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• 1 decade ago

Based on your drawing, it suggests that the red bar is attached at the heavy weight and pivots about that axis, giving the path suggested by the blue arrow. That would be along the lines of a wheel & axle. For the red bar to be a pendulum...it would pivot about the point at the top. This would make the heavy weight swing back and forth in a path like a "smile". A pendulum resembles the classification of a third class lever.

• 1 decade ago

A lever has one end where force is applied and another end where a load is moved, so this is not a lever and fulcrum.

A wheel provides that the axle (fulcrum) is held at a constant distance from a surface, so this is not a wheel.

A pendulum is a load at the end of an lead from the axle.

This is a pendulum.