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1.7 Energy, work and power

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Question 199
a.

Here is a list of some energy resources which might be used to generate electricity:

  • coal
  • wind
  • biomass
  • geothermal
  • solar

Identify which of these rely on a fuel being consumed.

[2]
b.

Here is a list of devices which convert energy from one form to another:

battery, solar cell, electric heater, generator, electric bell, steam engine \text{battery, solar cell, electric heater, generator, electric bell, steam engine} battery, solar cell, electric heater, generator, electric bell, steam engine

Which of these is designed to convert:

light energy into electrical energy?

[1]
c.

Here is a list of devices which convert energy from one form to another:

battery, solar cell, electric heater, generator, electric bell, steam engine \text{battery, solar cell, electric heater, generator, electric bell, steam engine} battery, solar cell, electric heater, generator, electric bell, steam engine

Which of these is designed to convert:

chemical energy into electrical energy?

[1]
d.

Here is a list of devices which convert energy from one form to another:

battery, solar cell, electric heater, generator, electric bell, steam engine \text{battery, solar cell, electric heater, generator, electric bell, steam engine} battery, solar cell, electric heater, generator, electric bell, steam engine

Which of these is designed to convert:

electrical energy into sound energy?

[1]
Markscheme

1.7 Energy, work and power Questions

  1. IGCSE
  2. /Physics
  3. /1.7 Energy, work and power

533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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