Multiple Choice
Which of the following best describes kinetic energy?
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9. Work & Energy
Intro to Energy & Kinetic Energy
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What type of energy can be stored until it is needed to do work?
A
Thermal energy
B
Potential energy
C
Kinetic energy
D
Radiant energy
Verified step by step guidance1
Begin by understanding the concept of energy storage. Energy can be stored in various forms, and potential energy is one of the primary types that can be stored until it is needed to do work.
Potential energy is the energy possessed by an object due to its position or condition. For example, a rock at the top of a hill has gravitational potential energy due to its elevated position.
Contrast potential energy with kinetic energy, which is the energy of motion. Kinetic energy is not stored; it is the energy an object has while it is moving.
Consider other forms of energy mentioned: thermal energy is related to the temperature of an object, radiant energy is energy carried by electromagnetic waves, and neither is typically stored in the same way as potential energy.
Conclude that potential energy is the type of energy that can be stored until it is needed to do work, as it is dependent on the position or condition of an object rather than its motion or immediate state.
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