Question

A disk that is attached to a shaft or axle and the attachment point is off-center. This allows for the transfer of rotational energy. What is this mechanism called?

1) Gear
2) Pulley
3) Cam
4) Crankshaft

Answer 1

A crank is a lever that can be rotated 360° about its pivot. It is a type of simple machine that allows for the transfer of rotational energy.

Step-by-step explanation:

A crank is a lever that can be rotated 360° about its pivot. It is a type of simple machine that allows for the transfer of rotational energy. The attachment point of the crank to a disk or wheel is typically positioned off-center, which magnifies the force applied to the axle or shaft. By exerting a force on the outside of the wheel, a greater force is applied to the rope or cord wrapped around the axle.