Practice question

What is the definition of kinetic energy?

  1. An area in front of you that you can see sharply
  2. Energy of motion
  3. Energy produced by two objects rubbing against each other
  4. Green light that has been there for awhile

Answer: B — Energy of motion

The correct answer is B. Kinetic energy is the energy of motion. When an object is in motion, it possesses kinetic energy. This energy is directly related to the object's mass and its velocity. As an object moves faster or has more mass, its kinetic energy increases. Options A, C, and D are incorrect. Option A describes visual acuity or clarity and is unrelated to kinetic energy. Option C refers to the concept of frictional energy, not kinetic energy. Option D mentions green light, which has no connection to the definition of kinetic energy.

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