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Plugs and national grid

Total questions: 79

Worksheet time: 1hrs 2mins

Name
Class
Date
1.

Which symbols can represent a bulb in a circuit?

a)
b)
c)
d)
e)
2.

Which symbol represents an open switch in a circuit?

a)
b)
c)
d)
e)
3.

Which symbol represents a battery in a circuit?

a)
b)
c)
d)
e)
4.

Which pictures show a series circuit?

a)
b)
c)
d)
e)
5.

Which are true statements about electrical CURRENT?

a)

It is the flow of electrons

b)

It is the amount of charge flowing per second

c)

It is measured by a voltmeter

d)

It is also known as potential difference

6.

What does the A symbol represent? (choose 2)

a)

A device that measures current

b)

A device that measures potential difference

c)

A voltmeter that measures voltage

d)

An ammeter

7.

What does the voltmeter measure?

a)

the direction of electron flow

b)

the energy difference between the electrons before and after the bulb

c)

the number of electrons before and after the bulb

d)

the speed of electron flow before and after the bulb

8.

Each component of a circuit obstructs the flow of charge.

What is this called?

a)

Resistance

b)

Rating

c)

Conventional flow

d)

Hindrance

9.

How is resistance measured? (choose 2)

a)

In ohms (Ω)\left(\Omega\right)  

b)

p.d. (V) ÷\div  current (A)

c)

In volts (V)

d)

p.d. (v) X

current (A)

e)

In amperes (A)

10.

What would be the value on these Ammeters?

a)

All the same

b)

Going down as you go from 1 to 3

c)

Going up as you go from 1 to 3

11.

What would be the value on these Ammeters? (choose 2)

a)

All the same

b)

A1 and A4 would be the same

c)

A2 and A3 would add up the same as A1

d)

Going down from A1 to 4

e)

A1 and A4 would add up to the same as A2

12.

What would be the values shows on voltmeters 1 and 2? (choose 2)

a)

Both the same

b)

Equal to the V total when added together

c)

V1 is higher than V2

d)

The same as the Vtotal.

13.

What would be the values of V1, 2 and 3? (choose 2)

a)

All the same

b)

Going down from 1 to 3

c)

Going up from 1 to 3

d)

Adding up to equal the battery

e)

All the same as the battery

14.

The bulb brightness will be the same in both of these circuits.

a)

True

b)

False

15.

Conventional current is drawn as travelling from the positive battery terminal.

a)

True

b)

False

c)

Either

16.

What is the primary source of energy for fossil fuel power plants?

a)

Wind

b)

Coal

c)

Solar

d)

Hydropower

17.

Which of the following is a renewable energy source?

a)

Natural Gas

b)

Oil

c)

Wind

d)

Coal

18.

Which type of power plant uses uranium as a fuel?

a)

Hydropower plant

b)

Wind farm

c)

Nuclear power plant

d)

Solar power plant

19.

Which of the following is NOT a renewable energy source?

a)

Solar

b)

Wind

c)

Natural Gas

d)

Hydropower

20.

What is the primary function of a dam in hydropower generation?

a)

Store water

b)

Generate wind

c)

Produce solar energy

d)

Burn coal

21.

Which of the following is a benefit of using solar energy?

a)

High maintenance cost

b)

Non-renewable

c)

Produces greenhouse gases

d)

Reduces electricity bills

22.

What is the unit of electrical power?

a)

Joule

b)

Watt

c)

Volt

d)

Ampere

23.

Which of the following is a disadvantage of solar power?

a)

High greenhouse gas emissions

b)

Limited availability at night

c)

High fuel cost

d)

Produces radioactive waste

24.

Which type of power plant uses flowing water to generate electricity?

a)

Nuclear power plant

b)

Wind farm

c)

Hydropower plant

d)

Solar power plant

25.

What is the main advantage of using renewable energy sources?

a)

High initial cost

b)

Limited supply

c)

Sustainable and eco-friendly

d)

Produces greenhouse gases

26.

Which of the following is a common method of storing solar energy?

a)

Batteries

b)

Gas tanks

c)

Water reservoirs

d)

Coal piles

27.

What is the main environmental benefit of using wind energy?

a)

Produces no air pollution

b)

High land use

c)

Consistent energy production

d)

High noise levels

28.

What is the voltage of mains power in the UK?

a)

110V

b)

200V

c)

230V

d)

260V

29.

Select any and all that apply.

In a plug, the earthing wire is normally colored...

a)

Blue

b)

Red

c)

Brown

d)

Green

e)

Yellow

30.

Select any and all that apply.

In a plug, the live wire is normally colored...

a)

Black

b)

Red

c)

Brown

d)

Green

e)

Yellow

31.

Select any and all that apply.

In a plug, the live wire is normally colored...

a)

Blue

b)

Red

c)

Brown

d)

Green

e)

Yellow

32.

Select any and all that apply.

In a plug, the neutral wire is normally colored...

a)

Blue

b)

Red

c)

Brown

d)

Green

e)

Yellow

33.

In a UK plug, the fuse contacts which wire?

a)

Earth

b)

Neutral

c)

Live

d)

Negative

34.

In a UK plug, which wire is usually the longest?

a)

Earth

b)

Neutral

c)

Live

d)

Negative

35.

What colour is the live wire in a 3-pin plug?

a)

Yellow and green

b)

Red

c)

Blue

d)

Brown

36.

What colour is the neutral wire in a 3-pin plug?

a)

Yellow and green

b)

Red

c)

Blue

d)

Brown

37.

What colour is the Earth wire in a 3-pin plug?

a)

Yellow and green

b)

Red

c)

Blue

d)

Brown

38.

What is the job of the Earth wire?

a)

It brings the potential difference to the device

b)

It keeps the user safe

c)

It completes the circuit

39.

What is the job of the live wire?

a)

It brings the potential difference to the device

b)

It keeps the user safe

c)

It completes the circuit

40.

What is the job of the neutral wire?

a)

It brings the potential difference to the device

b)

It keeps the user safe

c)

It completes the circuit

41.

What is the potential difference of the live wire?

a)

0V

b)

230V

c)

320V

42.

What is the potential difference of the neutral wire?

a)

0V

b)

230V

c)

320V

43.

What is the potential difference of the Earth wire?

a)

0V

b)

230V

c)

320V

44.

What is the position of the live wire?

a)

top

b)

left

c)

right

45.

What is the position of the neutral wire?

a)

top

b)

left

c)

right

46.

What is the position of the earth wire?

a)

top

b)

left

c)

right

47.

What type of transformer increases voltage?

a)

Step-Up

b)

Step-Down

48.

What quantities are changed in a step-up transformer?

a)

Voltage increases

b)

Voltage decreases

c)

Current increases

d)

Current decreases

49.

Why is the voltage increased in the national grid?

a)

Stops electricity being lost.

b)

Stops energy loss by heat

c)

To increase safety

d)

Stops energy loss through leaking electricity

50.

Which colour is live?

a)

Yellow and Green

b)

Blue

c)

Brown

d)

None of them

51.

What is the yellow and green wire called?

a)

Earth

b)

Live

c)

Scary

d)

Neutral

52.

What is mains voltage in the UK?

a)

240V

b)

1.5V

c)

120V

d)

230V

53.

Which of these is a symbol for a fuse?

a)
b)
c)
d)
54.

Why is the voltage in the national grid stepped down for peoples houses?

a)

To make sure electrical devices work.

b)

To save national grid money.

c)

To stop energy loss in the home.

d)

Large voltages are unsafe.

55.

Which images shows the voltage trace for a.c?

a)
b)
56.

Which of the parts shown are NOT part of the National Grid?

a)

Power Station

b)

Step Up Transformer

c)

Transmission Cables

d)

Step Down Transformer

e)

Homes

57.

Which part INCREASES the voltage of the power supply?

a)

Power Station

b)

Step Up Transformer

c)

Transmission Cables

d)

Step Down Transformer

e)

Homes

58.

Which part DECREASES the voltage of the power supply?

a)

Power Station

b)

Step Up Transformer

c)

Transmission Cables

d)

Step Down Transformer

e)

Homes

59.

Which part burns FOSSIL FUELS?

a)

Power Station

b)

Step Up Transformer

c)

Transmission Cables

d)

Step Down Transformer

e)

Homes

60.

Which part has the HIGHEST voltage?

a)

Power Station

b)

Step Up Transformer

c)

Transmission Cables

d)

Step Down Transformer

e)

Homes

61.

Which part has a voltage of 230V?

a)

Power Station

b)

Step Up Transformer

c)

Transmission Cables

d)

Step Down Transformer

e)

Homes

62.

What is the potential difference of the mains electricity in the UK?

a)

50V

b)

50Hz

c)

230V

d)

230Hz

63.

What is the frequency of the mains electricity in the UK?

a)

50V

b)

50Hz

c)

230V

d)

230Hz

64.

Electricity is generated at a .......

a)

power station

b)

petrol station

c)

power source

d)

source of energy

65.
In a fuel power station, the turbine converts the heat from the steam into...
a)
heat energy
b)
kinetic energy
c)
electrical energy
66.
In a fuel power station, the generator converts kinetic energy from the turbine into...
a)
heat energy
b)
kinetic energy
c)
electrical energy
67.

Which of these might spin a generator at a power plant to produce electricity?

a)

wind

b)

water

c)

steam from burning coal

d)

all of these

68.

In a thermal power plant, coal, oil, natural gas or uranium are used to heat what?

a)

water

b)

oil

c)

air

d)

the turbine

69.

What is happening at stage 1 in the diagram?

a)

fuel is burned to boil water to make steam

b)

steam makes a turbine spin

c)

the spinning turbine turns a generator which produces electricity

d)

the electricity goes to the transformers to produce the correct voltage

70.

What is happening at stage 2 in the diagram?

a)

fuel is burned to boil water to make steam

b)

steam makes a turbine spin

c)

the spinning turbine turns a generator which produces electricity

d)

the electricity goes to the transformers to produce the correct voltage

71.

What is happening at stage 3 in the diagram?

a)

fuel is burned to boil water to make steam

b)

steam makes a turbine spin

c)

the spinning turbine turns a generator which produces electricity

d)

the electricity goes to the transformers to produce the correct voltage

72.

What is Coal?

a)

Energy from the sun

b)

Any organic matter that can be used as an energy source such as wood or crops

c)

The fuel used by nuclear power plants to produce steam

d)

A solid black fossil fuel that formed from the remains of plants that lived and died millions of years ago

e)

A colorless, flammable gas refined from petroleum and natural gas

73.

What is Solar Energy?

a)

Energy from the sun

b)

Any organic matter that can be used as an energy source such as wood or crops

c)

The fuel used by nuclear power plants to produce steam

d)

A solid black fossil fuel that formed from the remains of plants that lived and died millions of years ago

e)

A colorless, flammable gas refined from petroleum and natural gas

74.

What is Wind Energy?

a)

A colorless, odorless fossil fuel made mostly of methane

b)

Energy from the heat within Earth

c)

Energy that come from the force of falling water

d)

Energy in moving air

e)

A fossil fuel that looks like a thick, black liquid

75.

What is Hydropower?

a)

A colorless, odorless fossil fuel made mostly of methane

b)

Energy from the heat within Earth

c)

Energy that come from the force of falling water

d)

Energy in moving air

e)

A fossil fuel that looks like a thick, black liquid

76.

Energy from the heat within Earth is ....

a)

Geothermal

b)

Hydropower

c)

Petroleum

d)

Uranium

e)

Coal

77.

Which of the following are RENEWABLE energy sources?

a)

Wind

b)

Coal

c)

Geothermal

d)

Hydropower

e)

Petroleum (Oil)

78.

Which of the following are RENEWABLE energy sources?

a)

Solar

b)

Biomass

c)

Uranium

d)

Propane

79.

Which of th d following are NON RENEWABLE Resrouces

a)

Coal

b)

Hydropower

c)

Geothermal

d)

Propane

e)

Uranium

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