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OCR GCSE Physics lesson 1 > Electricity 2 > Flashcards

Electricity 2 Flashcards

1
Q

What is Voltage

A

Energy supplied by the power source per unit charge

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2
Q

What is Potential Difference

A

Difference in the potential energy between 2 points in a circuit

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3
Q

What is Resistance

A

How easy/difficult is it for charges to flow

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4
Q

Equation for Potential Difference!

A

Potential Difference= Energy/Charge

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5
Q

In Short Form

Equation for Potential Difference!

A

V=E/Q

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6
Q

Potential Difference measured in ?

A

Volts

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7
Q

Energy measured in ?

A

Joules

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8
Q

Charge measured in ?

A

Coulombs

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9
Q

What is Ohm’s Law

A

Current through a fixed resistor at constant temperature is directly proportional to the potential difference across it.

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10
Q

Equation for Resistance

A

Resistance = Voltage/Current

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11
Q

Resistance measured in ?

A

Ohms

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12
Q

Voltage measured in ?

A

Volts

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13
Q

Current measured in ?

A

Amps

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14
Q

What is this describing

Energy supplied by the power source per unit charge

A

Voltage

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15
Q

What is this describing

Difference in the potential energy between 2 points in a circuit

A

Potential Difference

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16
Q

What is this describing

How easy/difficult is it for charges to flow

A

Resistance

17
Q

What is this describing

Current through a fixed resistor at constant temperature is directly proportional to the potential difference across it.

A

Ohm’s Law

OCR GCSE Physics lesson 1 (4 decks)

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