Electrical Components

It is used to control the flow of electrons through a circuit.

• bulb

• switch

• bulb holder

• wires

Which of the following describes the function of a diode?

• Protects the electrical circuit.

• Forces electrons to flow in one direction only.

• Stores electrical charges.

Choose the correct electrical component according to the picture.

• switch

• wire

• dry cell

Which of the following components has the function of conduction?

• 
• 
• 

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NGSS.MS-PS3-3

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The function of a capacitor is:

• To store electrical charges.

• Supply energy.

• Relay information.

• Control the flow of electrons.

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NGSS.MS-PS3-4

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The function of a motor is:

• Control

• Transformation of energy

• Power supply

• Insulation

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NGSS.MS-PS3-5

What is the function of the following device?

• Transformation of energy

• Conduction

• Protection

• Power supply

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NGSS.MS-PS3-5

Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulate electricity

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A material that does NOT let electricity pass through it is called ...

• An electrical conductor

• An electrical insulator

• An electrical source

• An electric appliance

Why is electrical wiring usually are covered with a layer of plastic?

• To make it look pretty

• To help electricity flow along the wire

• To make it safe

• To add more energy