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Multiple Choice
Which of the following is an example in which kinetic energy is converted to gravitational potential energy?
A
A spring being compressed
B
A ball rolling down a hill
C
A car accelerating on a flat road
D
A pendulum reaching its highest point
Verified step by step guidance
1
Understand the concepts: Kinetic energy is the energy of motion, while gravitational potential energy is the energy stored due to an object's position in a gravitational field.
Identify the scenario: A pendulum reaching its highest point involves a conversion of kinetic energy to gravitational potential energy.
Analyze the motion of the pendulum: As the pendulum swings upwards, its speed decreases, indicating a decrease in kinetic energy.
Recognize the energy conversion: The decrease in kinetic energy is converted into gravitational potential energy as the pendulum gains height.
At the highest point, the pendulum momentarily stops, having maximum gravitational potential energy and zero kinetic energy, completing the conversion process.