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Difficulty: EasyWork, Energy, and Power

Match each physical concept related to mechanics with its correct scientific definition.

  • WorkThe transfer of energy that occurs when a force causes an object to move across a distance
  • PowerThe rate at which work is performed or energy is transferred over time
  • Kinetic EnergyThe energy possessed by an object due to its motion
  • Gravitational Potential EnergyEnergy stored in an object due to its vertical position or height above the ground

Answer

Work matches the transfer of energy occurring when a force moves an object across a distance; Power matches the rate at which work is performed over time; Kinetic Energy matches the energy possessed by an object due to its motion; Gravitational Potential Energy matches the energy stored in an object due to its vertical position.
Each concept pairs directly with its foundational physics definition: Work is energy transferred by a force acting along a distance; Power is the time rate of doing work; Kinetic Energy is the energy of a body in motion; and Gravitational Potential Energy is energy stored by virtue of position in a gravitational field.

Step-by-Step Solution

1
Identify the definition of Work.
Work corresponds to a force exerted across a displacement (W=FdW = Fd).
Work represents mechanical energy transferred by applying force over distance.
2
Identify the definition of Power.
Power corresponds to the rate of doing work (P=WtP = \frac{W}{t}).
Power quantifies work completed per unit time.
3
Identify the definition of Kinetic Energy.
Kinetic energy corresponds to energy of motion (KE=12mv2KE = \frac{1}{2}mv^2).
Any mass in motion possesses kinetic energy.
4
Identify the definition of Gravitational Potential Energy.
Gravitational potential energy corresponds to energy stored by elevated position (PE=mghPE = mgh).
An object's location in a gravitational field determines its stored gravitational potential energy.

Key Concept

Fundamental definitions and distinctions among work, power, kinetic energy, and potential energy
Estimated Time:45s
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Topics

Work, Energy, and Power

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