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7th Grade Electric Circuit Chapter 10 Quiz

10 Questions

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7th Grade Electric Circuit Chapter 10 Quiz

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Questions and Answers

What are the two terminals of a lamp?

Glass bulb and base

Glass bulb and metal stem

Base and central contact (correct)

Inert gas and filament

Which type of battery has the inscription '1.5 V' and a small metal stem on its positive pole?

Rectangular battery

Flat battery

Cylindrical battery (correct)

Rechargeable battery

What is the function of a filament in a lamp?

To regulate the flow of electricity

To hold the glass bulb in place

To allow electricity to enter or leave the lamp

To emit light when heated (correct)

Where can a flat battery with the inscription '4.5 V' typically be found?

Airplane terminals Signup and view all the answers

Which component in a lamp holds the inert gas?

Glass bulb Signup and view all the answers

What is the polarity of the smaller circular pole and the larger hexagonal pole mentioned in the text?

Positive and negative Signup and view all the answers

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

To turn off the lamp whenever needed Signup and view all the answers

What does the brightness of the lamp depend on in an electric circuit?

Polarity of the battery Signup and view all the answers

Why is it mentioned in the text that if you keep your battery working, it will die soon?

Because it drains quickly with continuous use Signup and view all the answers

What happens to the lamp when a switch is open in an electric circuit?

The lamp does not light up Signup and view all the answers