Mechanical comprehension · Difficulty 1
Try this ASVAB-style question.
Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.
Which statement best describes mechanical advantage?
- the ratio of output force to input force
- a force that opposes relative motion between contacting surfaces
- force distributed over an area
- the point where an object’s weight can be treated as concentrated
Reveal answer and explanation
the ratio of output force to input force
mechanical advantage is the ratio of output force to input force. A pulley arrangement lets a smaller input lift a heavier load.