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Physics GCSE AQA > Topic 2 -Electricity > Flashcards

Topic 2 -Electricity Flashcards

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1
Q

What is electric current?

A

The flow of electric charge

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2
Q

What is the unit, name and shorthand, for current?

A

Amps, A

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3
Q

What is a single-looped circuit called?

A

Series

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4
Q

What is a circuit with multiple loops called?

A

Parallel

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5
Q

What is the correct name for voltage?

A

Potential difference

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6
Q

What is the unit, name and shorthand, for potential difference?

A

Volts, V

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7
Q

What is resistance?

A

Something that slows down the flow of the current

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8
Q

What is the unit, name and shorthand, for resistance?

A

Ohms, ♎️

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9
Q

What is charge?

A

The amount of current over a period of time

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10
Q

Charge =

A

Current x Time

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11
Q

What is the unit, name and symbol, for charge?

A

Coulombs, C

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12
Q

What does the symbol for a cell look like?

A

A long thin line follow by a short thick line, both perpendicular to the wire line

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13
Q

What does the symbol for a battery look like?

A

Multiple cells

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14
Q

What does the symbol for a switch look like?

A

The wire is interrupted by two small circles, which are connected by a line. If the line completely connects them, the switch is closed. If the online only touches one, the switch is open.

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15
Q

What does the symbol for a bulb look like?

A

A circle with an X inside that touches the circumference

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16
Q

What does the symbol for a fuse look like?

A

A rectangle that the wire line continues through

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17
Q

What does the symbol for LED look like?

A

A circle containing a ‘play button’ type triangle that points towards a line perpendicular to wire. Around this is a circle with two arrows pointing out of it.

18
Q

What does the symbol for a resistor look like?

A

A rectangle that interrupts the wire

19
Q

What does the symbol for a variable resistor look like?

A

A rectangle with an arrow pointing NE going through it

20
Q

What does the symbol for an ammeter look like?

A

A circle containing an A

21
Q

What does the symbol for a voltmeter look like?

A

A circle containing a V

22
Q

What does the symbol for a diode look like?

A

A circle containing a ‘play button’ type triangle that points towards a line perpendicular to wire. Around this is a circle.

23
Q

What does the symbol for a light dependent resistor look like?

A

A rectangle in a circle, with two arrows on the outside pointing in.

24
Q

What does the symbol for a thermistor look like?

A

A rectangle with a backwards, slanted L going through it

25
Q

Resistance =

A

Voltage/Current

26
Q

What is the symbol for coulombs?

A

Q

27
Q

What is the symbol for current?

A

I

28
Q

What is the symbol for potential difference?

A

V

29
Q

What is the symbol for resistance?

A

R

30
Q

What is the name of a component that maintains the same resistance (given a constant temperature) even when the current changes?

A

Ohmic conductors

31
Q

Why do ohmic conductors maintain the same resistance when the current changes?

A

The current and potential difference are directly proportional

32
Q

What does a rise in temperature do to resistance?

A

Increases it

33
Q

What does the light dependent resistor do?

A

Increases resistance when it has less light

34
Q

What does the thermistor do?

A

Increase resistance when it has less heat

35
Q

What is a sensing circuit?

A

A circuit that turns on or increases power for its key components depending on it’s conditions and surroundings.

36
Q

What happens to the voltage of components in a series circuit?

A

It is shared

37
Q

What happens to the voltage of the components in a parallel circuit?

A

Same voltage goes to each loop

38
Q

What happens to the current in a series circuit?

A

It is the same all the way around

39
Q

What happens to the current in a parallel circuit?

A

It is shared between loops

40
Q

Page

A

28

Physics GCSE AQA (3 decks)

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