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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.

Question

Which situation is the best example of kinetic energy?

  1. A loaded moving cart is harder to stop than an empty cart at the same speed.
  2. A rolling ball can move another object when they collide.
  3. A pulley arrangement lets a smaller input lift a heavier load.
  4. A longer wrench increases the turning effect from the same hand force.
Reveal answer and explanation

A rolling ball can move another object when they collide.

kinetic energy is energy an object has because of its motion. A rolling ball can move another object when they collide.