PHYSICS REVISION Quiz 3

Which object would make this bulb light up, if placed at the gap of the circuit shown?

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An electrical circuit is made with many components. Use the symbol shown and find the component.

• Resistor

• Switch

• Wire

• Indicator

• Battery

An electrical circuit is made with many components. Use the symbol shown and find the component.

• Resistor

• Switch

• Wire

• Indicator

• Battery

An electrical circuit is made with many components. Use the symbol shown and find the component.

• Resistor

• Switch

• Wire

• Indicator

• Battery

Which of these uses electricity from mains power?

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Why should one never cover any part of an electric cord with newspapers, clothing, rugs, or any objects?

• To make the cord look neat and tidy             

• To protect it from dust and dirt

• Because it may lead to tripping hazards

• Because it can overheat and cause a fire

What is the primary purpose of controlled chain reactions in nuclear reactors?

• To create new elements

• To produce weapons-grade material

• To generate electricity

• To release large amounts of radiation

• To fuel the propulsion systems

What is the primary purpose of transformers in the power distribution process?

• Increase electricity generation

• Control current flow

• Decrease voltage for efficient transmission

• Store electrical energy

What is the role of substations in the electricity distribution network?

• Generate electricity

• Decrease voltage for local distribution

• Increase voltage for transmission

• Control temperature of power lines

An insulator with a breakdown voltage of 500 volts is suitable for:

• Low-voltage applications only

• Medium-voltage applications

• High-voltage applications

• No voltage applications

• All voltage levels