Physics 3 Flashcards by I like food

Q

What does an open switch do?

A

Breaks the circuit

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Q

What does a closed switch do?

A

Completes the circuit

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Q

What does a cell do?

A

Provides energy

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Q

What does a battery do?

A

Provides energy

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Q

What does a diode do?

A

Allows electricity in one direction

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Q

What does a resistor do?

A

Resists/ slows the electricity

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Q

What does a variable resistor do?

A

Changes the flow of electricity

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Q

What does an LED do?

A

Emits light

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Q

What does a bulb do?

A

Lights up

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Q

What does a fuse do?

A

Safety feature

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Q

What does a voltmeter do?

A

Measures potential difference

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Q

What does an ammeter do?

A

Measures current

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Q

What does a thermistor do?

A

Changes resistance depending on temperature

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Q

What does an LDR do?

A

Changes resistance due to light

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Q

What are the two types of electrical circuits?

A

Series and parallel

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Q

What are series circuits?

A

They are connected in one loop only

Q

What is a parallel circuit?

A

They are connected in 2 or more loops