Electricity Quiz

What is electricity?

• The flow of tiny particles called electrons

• The flow of water through a circuit

• The flow of light through a wire

• The flow of heat energy

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What is an electrical circuit?

• A closed path for the flow of electrons

• A device that generates electricity

• A wire that conducts electricity

• A switch that controls the flow of electricity

What is the difference between AC and DC?

• AC flows in both directions, while DC flows in one direction

• AC flows faster than DC

• AC is used for small devices, while DC is used for large appliances

• AC is generated by batteries, while DC is generated by power plants

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What is the unit of electrical power?

• Watts

• Volts

• Amps

• Ohms

What is the purpose of a battery in an electrical circuit?

• To provide a source of electrical energy

• To control the flow of electrons

• To convert AC to DC

• To increase the voltage of the circuit

Why can birds sit on power lines without getting electrocuted?

• Their bodies do not complete the circuit

• They have insulating feathers

• They have a high resistance to electricity

• They generate their own electrical charge

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What is the main source of electricity in a hydroelectric power plant?

• Flowing water

• Solar energy

• Wind power

• Geothermal heat

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What is the purpose of a photovoltaic cell?

• To convert light into electricity

• To store electrical energy

• To control the flow of electrons

• To generate heat energy

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Why is it important to complete an electrical circuit?

• To allow the flow of electrons and make electricity work

• To conserve energy

• To prevent electrical shocks

• To increase the voltage of the circuit

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NGSS.MS-PS3-5

What is the purpose of a switch in an electrical circuit?

• To control the flow of electricity

• To generate electrical energy

• To increase the resistance of the circuit

• To convert AC to DC