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Yr 8 Science > Electricity and magnetism > Flashcards

Electricity and magnetism Flashcards

1
Q

What is the function of the ammeter?

A

It is used as a measuring device to measure the current in the circuit

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2
Q

What is it called when there is more than one bulb in a circuit with only 1 loop?

A

Series circuit

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3
Q

What is it called when there is more than one bulb in a circuit with more than one loop?

A

Parallel circuit

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4
Q

What is the equation to find out resistance

A 
Potential difference(v) 
Current (amps)
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5
Q

What is the equation to find out current

A

Potential difference

Resistance

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6
Q

What is the equation to find out potential difference

A

Current x resistance

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7
Q

When there is 2 positive charges they…

A

Repel

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8
Q

When there is 2 negative charges they…

A

Repel

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9
Q

When there is a positive and negative charge they…

A

Attract

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10
Q

What charge do protons have?

A

Positive charge

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11
Q

What charge do electrons have?

A

Negative charge

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12
Q

What charge do neutrons have?

A

None

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13
Q

What is charge?

A

A property of a particle

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14
Q

What are the two sides of the magnet called?

A

North and South

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15
Q

What is current?

A

The amount of charge flowing per second

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16
Q

What is current measured in?

A

Amps

17
Q

Where do the charges come from?

A

The cell or the battery

18
Q

What does potential difference tell you?

A

It tells you about the size of the force on the charges

19
Q

What piece of equipment do you use to measure potential difference?

A

Voltmeter

20
Q

What is potential difference measured in?

A

Volts (V)

21
Q

How do you use the voltmeter?

A

By connecting it across the cell in which you want to measure the potential difference of

22
Q

What does resistance tell you?

A

How easy or difficult it is to pass through the component

23
Q

What is resistance measured in?

A

Ohms

Yr 8 Science (7 decks)

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