Mechanical comprehension · Difficulty 3
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 situation is the best example of work?
- A loaded moving cart is harder to stop than an empty cart at the same speed.
- A small driving gear turns a larger driven gear more slowly with greater torque.
- A pulley arrangement lets a smaller input lift a heavier load.
- A worker lifts a box upward onto a shelf.
Reveal answer and explanation
A worker lifts a box upward onto a shelf.
work is force applied through a distance in the force direction. A worker lifts a box upward onto a shelf.