Understanding Work, Energy, and Power

What is the definition of work in physics as described in the passage?

• The transfer of energy when a force is applied to an object causing it to move in the direction of the force.

• The ability to do work, measured in joules.

• The rate at which work is done or energy is transferred, measured in watts.

• The energy of motion.

Which of the following is an example of potential energy mentioned in the passage?

• A rollercoaster car at the top of the track.

• A moving car.

• A person riding a bicycle.

• A car engine with high horsepower.

How is power defined in the passage?

• The rate at which work is done or energy is transferred, measured in watts.

• The ability to do work, measured in joules.

• The transfer of energy when a force is applied to an object causing it to move.

• The energy of motion.

What is the unit of measurement for energy as mentioned in the passage?

• Joules (J)

• Watts (W)

• Horsepower

• Newtons (N)

According to the passage, what happens when you lift a 10 kg box onto a 2-meter-high shelf?

• You do 196 joules of work, which is also the potential energy gained by the box.

• You increase the kinetic energy of the box.

• You decrease the potential energy of the box.

• You perform work without transferring energy.