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Worksheets

P5 and P6

Total questions: 71

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

What is wrong in this picture of a plug?

a)

The Earth and the Live have been swapped

b)

The Live and the Neutral have been swapped

c)

The Neutral and the Earth have been swapped

d)

The Earth is the wrong colour

e)

the fuse has blown

2.

If the earth wire is damaged...

a)

The user could get electrocuted if the live wire is also damaged

b)

The appliance won't work

c)

The appliance will overheat

d)

The appliance will be less environmentally friendly

e)

The user will immediately get electrocuted

3.

What component protects the appliance from overloading which could start a fire?

a)

Earth Wire

b)

Neutral Wire

c)

live wire

d)

Fuse

e)

battery

4.

What colour is the live wire in a three pin plug?

a)

Brown

b)

Blue

c)

Green and yellow

d)

white

e)

black

5.

A device that contains a thin strip of metal that melts easily if the current in the circuit is too high

a)

Fuse

b)

resistor

c)

earth wire

d)

battery

e)

diode

6.

What colour is the neutral wire in a three pin plug

a)

Red

b)

Blue

c)

Green and yellow

d)

white

e)

black

7.

What colour is the earth wire in a three pin plug

a)

Red

b)

Blue

c)

Green and yellow

d)

pink

e)

white

8.

Which label points to the Fuse on the diagram?

a)

C

b)

D

c)

E

d)

F

9.

Which label points to the Live Wire on the diagram ?

a)

A

b)

B

c)

C

d)

D

10.

Which label points to the Earth Wire on the diagram ?

a)

A

b)

B

c)

C

d)

D

11.

Which label points to the Neutral Wire on the diagram?

a)

A

b)

B

c)

C

d)

D

12.

What property of fuse wire enables it to act as a safety feature?

a)

it's Boiling point

b)

it's strength

c)

it's Melting point

d)

it's Texture

e)

it's flexibility

13.

What is the function of the neutral wire?

a)

To carry a high voltage

b)

To complete circuit

c)

It is a safety wire

d)

protect the fuse

14.

The fuse in a circuit melts when there is:

a)

no earth wire

b)

Too much current

c)

Too much voltage

d)

Too much resistance

e)

a loose connection

15.

A plastic appliances like hairdryers are double insulated.

This means they do not need....

a)

A fuse

b)

An earth wire

c)

A neutral wire

d)

A live wire

e)

A switch

16.

This is the circuit symbol of a

a)

resistor

b)

battery

c)

fuse

d)

switch

e)

an earth wire

17.

The fuse in a circuit 'blows' when the fuse wire....

a)

set alight

b)

melts

c)

explodes

d)

cracks

e)

falls out

18.

what happens to a 3A fuse when the current reaches 3 amps?

a)

it sets alight

b)

it melts

c)

it explodes

d)

it cracks

e)

nothing happens

19.

what happens to a 15A fuse when the current reaches 3 amps?

a)

it sets alight

b)

it melts

c)

it explodes

d)

it cracks

e)

nothing happens

20.

what happens to a 30A fuse when the current reaches 2 amps?

a)

it sets alight

b)

it melts

c)

it explodes

d)

it cracks

e)

nothing happens

21.

Latent heat is

a)

the heat absorbed or released at a boiling process during a change of phase

b)

the heat energy in JOULES absorbed or released at a constant temperature during a change of phase PER KG

c)

the heat energy IN JOULES absorbed or released at a constant temperature during a change of phase

d)

the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celcius

22.

The heat absorbed by melting a solid is known as

a)

latent heat of fusion

b)

latent heat of solid

c)

latent heat of liquid

d)

latent heat of vaporisation

23.

The amount of heat required to change the phase of a substance depends on two factors which are

a)

surrounding temperature

b)

temperature change

c)

material

d)

the mass

24.

specific latent heat of vaporisation is

a)

the amount of heat required to change 1 kg of the substance from the solid to liquid phase without change in temperature

b)

the amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature

c)

the amount of heat required to change the temperature 1 kg of the substance by 1 degree Celcius

25.

the symbol for specific latent heat is

a)

c

b)

L

c)

Q

d)

m

26.

What is the formula to calculate specific latent heat of vaporisation?

a)

L = E/m

b)

c = E/(mΔƟ)

c)

E = mcΔƟ

d)

E = mL

27.

Water molecules have the greatest kinetic energy in

a)

Ice at 0 ⁰C

b)

Water at 90 ⁰C

c)

Water at 373 K

d)

Steam at 150 ⁰C

28.

The graph shows the cooling curve of a substance. At which stages the specific latent heat released?

a)

AB and CD

b)

BC and DE

c)

AB and EF

d)

BC and CD

29.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
30.
When Pressure increases then the Volume must...
a)
Increase
b)
decrease
31.
When Volume increases then Pressure must...
a)
Increase
b)
Decrease
32.
A gas at a volume of 4 liters is at a pressure of 8 Pa. The volume is changed to 16 Liters, what must the new pressure be?
a)
1 Pa
b)
12 Pa
c)
10 Pa
d)
2 Pa
33.

What type of relationship to pressure and volume have?

a)

directly proportional

b)

inversely proportional

c)

no relationship

d)

I don't know

34.
True or False: Gases can be compressed. 
a)
True
b)
False
35.
What happened to the volume between the two steps?
a)
volume increased
b)
volume decreased
c)
volume stayed the same
36.
This graph is an example of two variables that are:
a)
directly proportional
b)
inversely proportional
c)
Straight line
d)
No relation
37.

State the equation linking power, energy and time

a)

Energy = Power x time

b)

time = power / energy

c)

power = time / energy

d)

energy = power / time

38.

State the equation that links potential difference, Current and power

a)

current = power x potential difference

b)

Power = current x potential difference

c)

potential difference = power x current

d)

power = current / potential difference

39.

State the equation that links power current and resistance

a)

power = current x resistance

b)

resistance = power / current

c)

power = (current)2 x resistance

d)

power = current x (resistance)2

40.

State the equation that links change, potential difference and energy

a)

Potential difference = energy x charge

b)

charge = potential difference x change

c)

energy = potential difference / charge

d)

energy = potential difference x charge

41.

State the equation that links charge , current and time

a)

Charge = current x time

b)

charge = current / time

c)

current = charge x time

d)

current = time / charge

42.

State the equation that links potential difference, current and resistance

a)

resistance = current / potential difference

b)

current = resistance x potential difference

c)

potential difference = current x resistance

d)

potential difference = current / potential difference

43.

State the units of energy

a)

Joules

b)

Watts

c)

Ohms

d)

Coulombs

44.

State the units of energy

a)

Joules

b)

Watts

c)

Ohms

d)

Coulombs

45.

State the units of power

a)

joules

b)

watts

c)

ohms

d)

coulombs

46.

State the SI units of time

a)

watts

b)

minutes

c)

hours

d)

seconds

47.

State the units of resistance

a)

watts

b)

Coulombs

c)

Seconds

d)

Ohms

48.

State the units of charge

a)

Coulombs

b)

Ohms

c)

Watts

d)

Joules

49.

State the units of potential difference

a)

Amps

b)

Volts

c)

Ohms

d)

Watts

50.

How do you convert kJ to J

a)

x 1000

b)

x100

c)

x10

d)

/1000

51.

How do you convert kW to W

a)

x1000

b)

x100

c)

/1000

d)

/100

52.

How do you convert minutes to seconds

a)

x10

b)

x60

c)

x3600

d)

x100

53.

How do you convert hours to seconds

a)

x1000

b)

x60 x60

c)

x60

d)

x100

54.

If a circuit produced 3 volts and 4 amp. How many watts would it produce?

a)

0.75 W

b)

1 W

c)

12 W

d)

16 W

55.

What is the potential difference across a bulb when a charge of 5mC passes through it and does 6kJ of work.

a)

0.3V

b)

3V

c)

30V

d)

300V

56.

If a circuit produced 1 volts and 2 amp. How many watts would it produce?

a)

0 W

b)

0.5 W

c)

1 W

d)

2 W

57.

The potential difference is..

a)

voltage

b)

current

c)

resistance

d)

wattage

58.

If a battery that produced 2 A and 2 V ran for 5 seconds. How many Joules would it release

a)

0 joules

b)

4 joules

c)

20 joules

d)

40 joules

59.

If a battery that produced 10 A and 20 V ran for 2 seconds. How many Joules would it release

a)

0 joules

b)

20 joules

c)

200 joules

d)

400 joules

60.

What is true about this circuit?

a)

Light 2 is on

b)

This is a series circuit

c)

Both lights are off

d)

This is a parallel circuit

61.

What is true about this circuit?

a)

Light 2 is on

b)

This is a series circuit

c)

Both lights are off

d)

This is a parallel circuit

62.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
63.
This circuit has more than one loop. When one light goes out, the others stay on. 
a)
closed circuit
b)
series circuit
c)
parallel circuit
d)
open circuit
64.
The equivalent resistance in this circuit is 
a)
100 ohms
b)
450 ohms
c)
400 ohms
d)
30 ohms
65.

Suppose you have a 100 Ω resistor in parallel to another 100 Ω resistor. what is their total resistance?

a)

less than 100 ohms

b)

200 ohms

c)

zero

d)

I'm falling asleep because Mr Hesketh is so boring.....

66.

AC stands for

a)

Air-condition

b)

Direct Current

c)

Alternating Current

d)

Alternating Voltage

67.

electric current is the flow of

a)

charges

b)

neutrons

c)

volts

d)

water

68.

the electricity in our house is

a)

AC

b)

DC

c)

BC

d)

AD

69.

milli Amps equals

a)

1000 A

b)

10 A

c)

0.1 A

d)

0.001 A

70.

What is average mains voltage in the uk?

a)

130V

b)

230V

c)

100V

d)

50V

71.

What is the frequency of mains electricity in the UK?

a)

50Hz

b)

60Hz

c)

230Hz

d)

What?

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