PHYSICS - electricity Flashcards

1
Q

What are the tiny electric charges on you clothes?

A

Static electricity

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2
Q

How is a crackle in a jumper caused ???

A

It is caused by electric charges in your clothes.

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3
Q

What is the electric charge on your clothes called ???

A

It’s called static electricity.

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4
Q

How does your jumper and shirt get electrically charged ???

A

When they rub together.

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5
Q

What do you need for an electric current ??? ( We need 2 things)

A
  • Something to make electricity flow, such as a battery or power pack.
  • A complete path for the current oath to flow in.
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6
Q

What is an electric circuit ???

A

An electric circuit is a path in which electrons from a voltage or a current source flow

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7
Q

What happens when your shirt and jumper rub together?

A

They become electrical charged

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8
Q

What flows in the wire when an electric charge is moving in a wire?

A

Electric current

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9
Q

What two things do you need for an electric current to flow?

A

1) Something to make the electricity to flow, like a battery of power pack
2) A complete path for the electric current to flow [A complete circuit]

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10
Q

The beginning and end parts of the circuit need to be joined together for the electrical charge be able to ____?

A

To flow through the circuit

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11
Q

What is electrical resistance measured by?

A

Ohms

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12
Q

What is a volt?

A

Potential difference on one side of the circuit and the other?

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13
Q

What is the difference between a series circuit and a parallel circuit?

A

Parallel circuits have branches and series circuits don’t

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14
Q

What happens when electrical charge is increased?

A

The current gets bigger

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15
Q

How do you measure current?

A

in Amp units

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16
Q

How do you show/produce amp reading?

A

On an ammeter

17
Q

How do you measure voltage?

A

In volts

18
Q

How do you show/produce volt readings?

A

On a voltmeter

19
Q

What increases with the amount of cells?

A

The voltage increases

20
Q

Which measuring device do you use in a series circuit?

A

An ammeter

21
Q

Which measuring device do you use in a parallel circuit?

A

A voltmeter

22
Q

In a series circuit, what happens when you add more cells?

A

The current becomes greater

23
Q

What is the same everywhere on a series circuit?

A

The current

24
Q

What doesn’t happen to current?

A

It gets all used up