Chapter 2 Practice Paper: National and global energy resources — question paper (print)

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QQ/GCSE-PHYS/CH2

GCSE (9–1) · GCSE Physics (Foundation and Higher)

Chapter 2 Practice Paper

National and global energy resources

Duration: 40 minutes

Total: 30 marks

Name:

Class:

Date:

READ THESE INSTRUCTIONS FIRST

Answer all questions.
Section A contains ten multiple-choice questions. Choose one answer, A, B, C or D, for each.
Section B contains structured questions. Write your answers in the spaces provided.
You may use a calculator.
The number of marks is given in brackets [ ] at the end of each question or part question.
The total mark for this paper is 30.

Original practice material written for the MOE GCSE Physics syllabus. It is not an official MOE or school examination paper. Chapter 2: energy resources, renewable vs non-renewable, uses in transport/electricity/heating, reliability, environmental effects, the UK energy mix and kilowatt-hour bills.

For Examiner’s Use
Section A	/ 10
Section B	/ 20
Total	/ 30

Section A: Multiple-choice questions[10 marks]

Choose one answer for each question. Each question is worth 1 mark.

1
Which resource is renewable?
1. Auranium
2. Bnatural gas
3. Chydroelectricity
4. Dcoal
( )
2
Transport worldwide still depends mostly on
1. Asolar cells
2. Boil
3. Curanium
4. Dwood
( )
3
A resource that is predictable but generates only in bursts is
1. Atidal
2. Bgas
3. Cgeothermal
4. Dnuclear
( )
4
Burning coal releases sulfur dioxide, which causes
1. Aglobal warming
2. Bozone holes
3. Ceutrophication of seas only
4. Dacid rain
( )
5
The energy transferred by a 3 kW heater in 2 hours is
1. A1.5 kWh
2. B667 kWh
3. C600 kWh
4. D6 kWh
( )
6
At 28 p per kWh, running a 2 kW fire for 5 hours costs
1. A£28
2. B£5.60
3. C£2.80
4. D28 p
( )
7
Pumped-storage stations help the grid because they
1. Astore spare energy and release it at peak demand
2. Bgenerate during the night
3. Ccool the turbines of other stations
4. Dmake wind power predictable
( )
8
The biggest disadvantage of nuclear stations compared with gas stations is
1. Athey emit more CO₂
2. Btheir waste and decommissioning
3. Cthey cannot generate electricity
4. Dtheir fuel is renewable
( )
9
The UK electricity mix today is best described as
1. Aalmost entirely coal
2. Bentirely nuclear
3. Cunchanged since 1990
4. Drenewables and gas with nuclear, and no coal
( )
10
1 kWh is equivalent to
1. A3 600 J
2. B360 000 J
3. C3 600 000 J
4. D36 J
( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided.

11
A country relies on coal, gas, nuclear, wind and hydroelectricity.
1. (a)
  State which two resources are non-renewable.
  [1]
2. (b)
  Explain why hydroelectricity is more reliable than wind.
  [2]
3. (c)
  Name the gas released by the coal station that most contributes to global warming.
  [1]
4. (d)
  State one advantage the nuclear station has over the coal station while generating.
  [1]
12
This question is about domestic electricity.
1. (a)
  A 9.5 kW shower runs for 8 minutes. Calculate the energy transferred in kWh.
  energy =[2]
2. (b)
  Electricity costs 28 p per kWh. Calculate the cost of one shower.
  cost =[1]
3. (c)
  A fridge-freezer rated 0.12 kW runs all year (8 760 h). Calculate its annual energy in kWh.
  energy =[2]
4. (d)
  Explain one reason the shower transfers energy much faster than the fridge-freezer.
  [2]
5. (e)
  State what the letters kWh stand for.
  [1]
6. (f)
  Show that 1 kWh equals 3.6 MJ.
  [1]
13
A town council proposes a 2 MW wind turbine (average output 30%) to supply 1 400 homes that each use 10 kWh of electricity a day.
1. (a)
  Calculate the homes’ total daily electricity use.
  [1]
2. (b)
  Show that the turbine’s average daily output is about 14 400 kWh.
  [2]
3. (c)
  On averages alone, explain whether the turbine can supply the homes.
  [1]
4. (d)
  Explain why the town still cannot rely on the turbine alone.
  [2]

— End of paper —