Question

the rigid structure that pivots around a point. the fixed point or axis around which the lever rotates or pivots. this is the weight or load that the lever works against. it is the output force or the object being moved. this is the force that is applied to the lever to move it and its load. question 16 - multiple choice what is mechanical advantage (ma)? the transfer of energy by a force acting over a distance. an internal force within a material per unit area that resists external forces. how much a machine multiplies the effort force when it is doing work. the factor by which a machine multiplies an input force. the rate of change of velocity. question 17 - multiple choice which class of lever is shown in the image below?

Explanation:

Mechanical advantage is defined as how much a machine multiplies the effort force when doing work, or the factor by which a machine multiplies an input force. The transfer of energy by a force acting over a distance is work. An internal force within a material per unit area that resists external forces is stress. The rate of change of velocity is acceleration.

Answer:

How much a machine multiplies the effort force when it is doing work. The factor by which a machine multiplies an input force.