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Generating Energy

Total questions: 51

Worksheet time: 27mins

Name
Class
Date
1.
The renewable energy resources are…
a)
Geothermal, wave, wind, solar, tidal, HEP, Biofuels
b)
Coal, OIl, Gas, Nuclear
c)
Powerstations
d)
Step-up and step-down transformers
2.
The non-renewable energy resources are…
a)
Geothermal, wave, wind, solar, tidal, HEP, Biofuels
b)
Coal, OIl, Gas, Nuclear
c)
Powerstations
d)
Step-up and step-down transformers
3.
The energy resource are most expensive to build are
a)
Nuclear
b)
Wind
c)
Biofuels
4.
Which energy resources are carbon neutral
a)
Coal
b)
Biofuels
c)
Wind
5.
Which energy resourcs produce sulphur dioxide
a)
Coal
b)
Biofuels
c)
Wind
6.
The order of a fossil fuel power station are…
a)
furnace-boiler - turbine-generator-
b)
Power station - step up transformer- Grid - Step down transformer - consumers
c)
furnace-boiler - generator-turbine-
7.
The parts of the national grid are
a)
furnace-boiler - turbine-generator-
b)
Power station - step up transformer- Grid - Step down transformer - consumers
c)
furnace-boiler - generator-turbine-
8.
The function of a step-up transformer is..
a)
to increase the voltage to reduce current to make the heating effect smaller
b)
To decrease voltage for safety
c)
To store excess energy and release it when necessary
9.
The function of a step-down transformer is..
a)
to increase the voltage to reduce current to make the heating effect smaller
b)
To decrease voltage for safety
c)
To store excess energy and release it when necessary
10.

Super heated steam is used to turn a ______________?

a)

Transformer

b)

Battery

c)

Turbine

d)

Toothed Gear

11.

which type of renewable energy is currently creating the most electricity generation?

a)

geothermal

b)

hydroelectric

c)

solar

d)

wind

12.

if a tractor trailer truck is 20% efficient, what happened to the other 80%

a)

energy is destroyed

b)

energy is lost as heat

c)

the 80% is still in the gas tank

d)

energy is converted into matter

13.
Where does geothermal energy come from?
a)
The Earth's atmosphere
b)
The Earth's asthenosphere
c)
The Earth's crust
d)
The Earth's troposphere
14.
Which is the BEST definition for hydroelectricity
a)
energy from water
b)
electricity from  water
c)
electricity generated from moving water
d)
moving water that creates energy
15.
Which of the following is an advantage of nuclear energy?
a)
does not produce solid waste
b)
does not produce air pollution
c)
it is cost effective
d)
can convert uranium into natural gas
16.
A light bulb converts 100J of electrical energy into 40J of light energy. What is it’s efficiency as a percentage?
a)
140%
b)
60%
c)
40%
d)
Impossible to say.
17.
A battery converts 5000J of chemical energy into 3000J of electrical energy.   What is it’s efficiency as a percentage?
a)
60%
b)
80%
c)
20%
d)
40%
18.

What type of transformer increases voltage?

a)

Step-Up

b)

Step-Down

19.

What quantities are changed in a step-up transformer?

a)

Voltage increases

b)

Voltage decreases

c)

Current increases

d)

Current decreases

20.

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

21.

What is mains voltage in the UK?

a)

240V

b)

1.5V

c)

120V

d)

230V

22.
In a fuel power station, the turbine converts the heat from the steam into...
a)
heat energy
b)
kinetic energy
c)
electrical energy
23.
In a fuel power station, the generator converts kinetic energy from the turbine into...
a)
heat energy
b)
kinetic energy
c)
electrical energy
24.

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

25.

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

26.

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

27.

What is happening at stage 4 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

28.
Where does most of the energy go in this transformation.
a)
Electrical energy
b)
Light
c)
Heat
d)
other
29.

What is this diagram called?

a)

Stankey Diagram

b)

Sankey Diagram

c)

Sankay Diagram

d)

Samkay Diagram

30.
Which fraction best describes, of the part of the gasoline that is put into a car, that actually makes the car move. 
a)
4/10
b)
1/4
c)
2/4
d)
3/5
31.

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

a)

5%

b)

50%

c)

55%

d)

100%

32.

Efficiency is calculated by useful energy output divided by total energy input, expressed as a percentage

a)

False

b)

True

33.

What is an energy resource?

a)

a natural product that can be changed into other energy forms to do work

b)

something formed from buried plants and animals

c)

force that opposes motion

d)

resource that can never be replaced

34.

What is a renewable energy resource?

a)

an energy source that is replaced more slowly than they are used

b)

an energy source that can never be replaced

c)

an energy source that is replaced faster than they are used

d)

a fossil fuel

35.

Biomass is nonorganic matter that gives off energy when burned.

a)

True

b)

False

36.

All are advantages of using Nuclear energy EXCEPT

a)

no air pollution

b)

Renewable resource

c)

concentrated energy form

37.
Why is burning fossil fuels harmful? 
a)
then we won't have any fossil fuels if we burn them all
b)
They can get extremely hot
c)
Increases the amount of greenhouse gases in the air
d)
this would destroy fossils
38.

As the resistance of a circuit increases, the current will

a)

increase

b)

decrease

c)

stay the same

d)

increase and then decrease

39.
Resistance is a measure of....
a)
the energy per unit charge in a circuit
b)
how hard it is for electrons to move through the circuit
c)
how hard it is for electrons to move through the battery
d)
the number of charge carriers in a circuit
40.

What equation links voltage, current and resistance

a)

V = IR

b)

V = CR

c)

V = I/R

d)

V = R/I

e)

V = C/R

41.

What type of transformer increases voltage?

a)

Step-Up

b)

Step-Down

42.

What quantities are changed in a step-up transformer?

a)

Voltage increases

b)

Voltage decreases

c)

Current increases

d)

Current decreases

43.

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

44.

What is mains voltage in the UK?

a)

240V

b)

1.5V

c)

120V

d)

230V

45.
Electrical energy enters the home at approximately...
a)
25,000 V
b)
132 kV
c)
230 V
46.
In a fuel power station, the turbine converts the heat from the steam into...
a)
heat energy
b)
kinetic energy
c)
electrical energy
47.
In a fuel power station, the generator converts kinetic energy from the turbine into...
a)
heat energy
b)
kinetic energy
c)
electrical energy
48.
Step-up transformers...
a)
reduce the current
b)
increase the current
c)
increase the power 
49.
The device that lowers our AC voltage so we can use it in our homes
a)
Transformer
b)
Rectifier
c)
Splicer
d)
Voltmeter
50.
AC stands for ___.
a)
Alternating Current
b)
Attraction Connections
51.

Who's the best Science Teacher

a)

Miss Mountford

b)

Mr Robinson

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