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S3 Physics > Electricity Revision > Flashcards

Electricity Revision Flashcards

1
Q

What is the circuit symbol for a light bulb/lamp?

A
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2
Q

What is the circuit symbol for a battery?

A
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3
Q

What is the circuit symbol for a cell?

A
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4
Q

What is the circuit symbol for a resistor?

A
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5
Q

What is the circuit symbol for a motor?

A
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6
Q

What is the circuit symbol for a voltmeter?

A
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7
Q

What is the circuit symbol for an ammeter?

A
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8
Q

What is used to measure voltage?

A

A voltmeter

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9
Q

What is used to measure current?

A

An ammeter

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10
Q

What is resistance measured in?

A

Ohms

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11
Q

What is voltage measured in?

A

Volts (V)

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12
Q

What is current measure in?

A

Amps

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13
Q

What is the circuit symbol for a LDR (Light dependent resistor)?

A
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14
Q

What is the circuit symbol for an LED (Light emitting diode)?

A
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15
Q

What is the circuit symbol for a thermistor?

A
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16
Q

How does a thermistor work?

A

As the temperature goes up the resistance goes down (TURD)

or as the temperature decreases the resistance increases

17
Q

How does an LDR work?

A

As the light level increases the resistance decreases (LURD) or as the brightness increases the resistance decreases (BURD).

Alternatively as the light level decreases the resistance will increase

18
Q

What is the energy change for a motor?

A

Electrical to sound/kinetic/heat

19
Q

What is the energy change for a loudspeaker?

A

electrical to sound

20
Q

What is the energy change for a solar cell?

A

light to electrical

21
Q

What is the energy change for a microphone?

A

sound to electrical

22
Q

What is an input device?

A

A device that changes some form of energy into electrical energy

23
Q

What is an output device?

A

A device that changes electrical energy into another form of energy

24
Q

What are the process devices called?

A

Logic gates

AND, OR and NOT

25
Q

What is a truth table?

A

A table with all the possible input and outputs for a system

26
Q

What is the truth table for a NOT gate?

A
27
Q

What is the truth table for an AND gate?

A
28
Q

What is the truth table for an OR gate?

A
29
Q

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

A

A series circuit consists of one loop whereas a parallel circuit is made up of two or more loops.

30
Q

What is ohm’s law?

A

V = I x R

Voltage = Current x Resistance

31
Q

What does it mean if a component is ohmic?

A

It follows ohms law

32
Q

What does it mean if a component is non-ohmic?

A

It does not follow ohm’s law.

As the temperature increase, the resistance increases. There is not a fixed relationshio between resistance and voltage.

33
Q

1 milliamp is equal to …

A

0.001 Amps

34
Q

1 kilovolt (kV) is equal to…

A

1000 Volts

35
Q

If you find the gradient of a voltage vs current graph what are you calculating?

A

The resistance

S3 Physics (1 decks)

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