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Question

Difficulty: EasyWork, Energy, and Power

A bowling ball rolls down a lane toward the pins. Which form of energy does the rolling ball primarily possess as a result of its motion?

  1. A
    Potential energy
  2. B
    Thermal energy
  3. Kinetic energyAnswer
  4. D
    Chemical energy

Answer

Kinetic energy
Kinetic energy is defined as the energy an object possesses by virtue of being in motion. Because the bowling ball is rolling down the lane, its mechanical energy is predominantly kinetic energy.

Step-by-Step Solution

1
Identify the physical state of the object described in the question.
The bowling ball is actively rolling along the lane, which means it is in motion.
Determining whether an object is stationary (storing energy) or moving is the key to identifying the form of mechanical energy.
2
Apply the definition of mechanical energy categories to the moving object.
Energy associated directly with the motion of an object is defined as kinetic energy (KE=12mv2KE = \frac{1}{2}mv^2).
Potential energy accounts for stored energy of position, whereas kinetic energy specifically measures energy of motion.

Key Concept

Kinetic Energy and Motion
Estimated Time:30s
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Topics

Work, Energy, and Power

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