Which of the following options correctly depicts the examples of kinetic and potential energy?
Correct answer: A. A. A rolling ball (kinetic) and a compressed spring (potential)
- A. A. A rolling ball (kinetic) and a compressed spring (potential)
- B. B. A stationary car (kinetic) and a falling rock (potential)
- C. C. A flowing river (kinetic) and a charged battery (potential)
- D. D. A swinging pendulum at its highest point (kinetic) and a moving car (potential)
Explanation
The correct answer is Option A. Kinetic energy is the energy of motion, exemplified by a rolling ball. Potential energy is the stored energy of position or configuration, such as in a compressed spring. Options B, C, and D are incorrect as they either misclassify the types of energy or provide examples that do not accurately represent kinetic or potential energy.
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About Kinetic Energy
Kinetic energy is the energy of motion, given for a nonrelativistic object by K = ½mv², so it depends on mass and the square of speed. Questions connect kinetic energy with work through the work energy theorem, calculate changes in kinetic energy, and distinguish it from momentum and potential energy.
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