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BWS AQA Physics Electricity IV characteristics

Authored by Lucinda Kimberley

Physics

8th - 10th Grade

Used 53+ times

BWS AQA Physics Electricity IV characteristics
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The graph shows the change in current with potential difference for

an LED

a filament lamp

a diode

a thermistor

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

To calculate the resistance of the component at a particular potential difference you

read the current at that point on the graph and calculate p.d divided by current

draw a tangent to the line at that point and calculate the gradient

draw a tangent to the line at that point and calculate 1/gradient

read the current at that point on the graph and calculate current/p.d

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The resistance of the component

is always constant as the p.d. increases

starts high and then decreases as the p.d. increases

starts constant for low values of p.d. and then increases as the p.d. increases

starts constant for low values of p.d. and then decreases as the p.d. increases

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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Which component has the highest resistance?

1

2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The components 1 and 2 which produced this IV graph are:

Resistors

Filament lamps

Diodes

A combination of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

To calculate the resistance of component 1

Calculate the gradient of the line

Calculate the gradient of line 1 and line 2 and find the difference between them.

Calculate the area under the graph

Calculate 1/gradient of the line

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Where would you place an ammeter in the circuit?

Green ?

Red ?

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