Potential Energy in a Circuit

Look at the circuits in the diagram. In which circuit will the bulb be brighter?

• Circuit A

• Circuit B

• Both circuits, the bulbs will have the same brightness.

What is potential energy in the context of an electric circuit?

• Energy stored due to the position of charges

• Energy due to the motion of charges

• Energy lost as heat

• Energy converted to light

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NGSS.HS-PS3-2

Which of the following components in a circuit stores potential energy?

• Resistor

• Capacitor

• Inductor

• Diode

In a circuit, potential energy is converted into kinetic energy when:

• A capacitor discharges

• A resistor heats up

• A switch is turned off

• A diode is reverse-biased

What is the unit of potential energy in an electric circuit?

• Volt

• Joule

• Watt

• Ampere

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NGSS.HS-PS3-2

How does potential energy change when a charge moves through a potential difference?

• It increases

• It decreases

• It remains constant

• It becomes zero

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NGSS.HS-PS3-1

NGSS.HS-PS3-5

Which equation represents the potential energy stored in a capacitor?

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NGSS.HS-PS3-2

In a parallel plate capacitor, the potential energy is directly proportional to:

• The distance between the plates

• The area of the plates

• The square of the voltage

• The resistance of the circuit

What happens to the potential energy in a circuit when a battery is connected?

• It is stored in the battery

• It is dissipated as heat

• It is converted to kinetic energy

• It is used to do work

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NGSS.HS-PS3-5

Which of the following best describes the role of potential energy in a circuit?

• It powers the circuit

• It opposes the current

• It stores energy for later use

• It reduces the voltage