Electricity and Charge Quiz

What is charge in the context of electricity?

• A type of energy

• An electrical property of matter

• A form of electric current

• A unit of electrical resistance

Which of the following can an object have in terms of electric charge?

• Only a negative charge

• Only a positive charge

• A negative charge, a positive charge, or no charge at all

• Only no charge

What is electric current defined as in the context of a circuit?

• The resistance encountered by the flow of charge

• The flow of charge through a circuit

• The voltage provided by a power source

• The illumination provided by a light bulb

How is the rate of electric current measured?

• In volts (V)

• In ohms (Ω)

• In amps (A)

• In watts (W)

What is the direction of electron flow in relation to the current flow?

• Electrons flow in the same direction as the current flow

• Electrons flow in the opposite direction of the current flow

• Electrons do not flow, only current flows

• Electrons flow perpendicular to the current flow

What does the movement of electrons in an electric circuit do?

• It only generates heat

• It transforms electrical energy into other forms such as light, heat, and sound

• It decreases the electrical energy in the circuit

• It has no effect on the electrical energy

What does a power source do to supply electrons with electric potential energy in a circuit?

• It increases the resistance in the circuit.

• It decreases the number of electrons in the circuit.

• It does work to separate opposite charges.

• It combines opposite charges to create energy.

What does the power source (the voltage) do to push current from low potential energy to high potential energy?

• It moves the current from positive to negative.

• It moves the current from negative to positive.

• It stops the current from flowing.

• It converts mechanical energy to electrical energy.

What is voltage?

• The resistance that opposes the flow of current

• The force that powers the flow of current

• The unit of current

• The energy consumed by a circuit

What does voltage supply to the electrons in the circuit?

• Resistance

• Energy

• Light

• Heat