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Worksheets

AQA Electricity

Total questions: 31

Worksheet time: 27mins

Name
Class
Date
1.

What are the units for current?

a)

Amps

b)

Volts

c)

Coulombs

d)

Watts

2.

What is the unit of power?

a)

Amps

b)

Volts

c)

Coulombs

d)

Watts

3.

What is the unit of charge?

a)

Amps

b)

Volts

c)

Coulombs

d)

Watts

4.

What is the unit of potential difference?

a)

Amps

b)

Volts

c)

Coulombs

d)

Watts

5.
Used to measure current (I).
a)
Voltmeter
b)
Ammeter
c)
LED
d)
resistor
6.
Used to measure potential difference.
a)
Voltmeter
b)
Ammeter
c)
LED
d)
resistor
7.
Allows the current to be varied in a circuit
a)
Variable resistor
b)
Fixed resistor
c)
LED
d)
diode
8.
Designed to melt and break the circuit is the current is too great.
a)
LDR
b)
Fixed resistor
c)
fuse
d)
diode
9.
What component is this?
a)
Thermistor
b)
Cell
c)
Battery
d)
diode
10.
What component is this?
a)
Ammeter
b)
Voltmeter
c)
Battery
d)
diode
11.
What component is this?
a)
Bulb
b)
LED
c)
Battery
d)
diode
12.
What component is this?
a)
LDR
b)
LED
c)
Thermistor 
d)
diode
13.
What component is this?
a)
Varibale resistor
b)
fuse
c)
Thermistor 
d)
diode
14.
What component is this?
a)
Varibale resistor
b)
fuse
c)
Thermistor 
d)
diode
15.
What is the formula for resistance?
a)
V x I = R
b)
R = V/I
16.

This is an example of a _______ circuit

a)

open

b)

series

c)

parallel

d)

closed

17.

This is an example of a ______ circuit

a)

Series

b)

Parallel

c)

Open

d)

Closed

18.

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

a)

1 Ohm

b)

3 Ohms

c)

4 Ohms

d)

12 Ohms

19.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
20.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
21.
A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
a)
58 Amps
b)
0.33 Amps
c)
13 Amps
d)
1 Amp
22.
What is the equation for energy transfer given power and time?
a)
energy transferred = power x time
b)
energy transferred = power/time
c)
energy transferred = time/power
d)
energy transferred = power x time^2
23.

What is the equation that links power, potential difference and current?

a)

Power = potential difference/current

b)

Power = potential difference x current

c)

Power = current/potential difference

d)

Power = 0.5 x potential difference x current^2

24.

which of the following is the correct equation that links power, energy transferred and time.

a)

Power = time x energy transferred

b)

Power x energy transferred = time

c)

Power = energy transferred/time

d)

Power = time/energy transferred

25.

What device does this graph represent?

a)

Diode

b)

Fixed resistor

c)

Filament lamp

d)

Thermistor

26.

What device does this graph represent?

a)

Diode

b)

Fixed resistor

c)

Filament lamp

d)

Thermistor

27.

What device does this graph represent?

a)

Diode

b)

Fixed resistor

c)

Filament lamp

d)

Thermistor

28.

Which of the following has a resistance that decreases with temperature.

a)

Filament bulb

b)

thermistor

c)

Light dependent resistor

d)

Diode

29.

Which of the following has a resistance that increases with temperature.

a)

Filament bulb

b)

thermistor

c)

Light dependent resistor

d)

Diode

30.

Which of the following has a resistance that decreases with light intensity.

a)

Filament bulb

b)

thermistor

c)

Light dependent resistor

d)

Diode

31.

The amount of current flowing in a circuit depends on...

a)

Potential difference and resistance

b)

Charge and power

c)

resistance only

d)

potential difference only

e)

potential difference and charge