# Specification focus questions on Energy resources and Electricity generation for Edexcel IGCSE Physics

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## Energy resources and Electricity generation

1. What is meant by renewable energy?
2. Write down some examples of renewable energy.
3. What is meant by non-renewable energy?
4. Give some examples of non-renewable energy.
5. Write down the energy transfers taking place in the following ways of generating electricity.
1. wind
2. water
3. geothermal resources
4. solar heating systems
5. solar cells
6. fossil fuels
7.  nuclear power

Large-scale electricity production

2. What are the advantages and disadvantages of fossil fuels (coal, oil and gas)?

# Specification focus Questions on Work and Power for Pearson Edexcel IGCSE

## Work and Power

1. Write down the equation to calculate work in terms of force and distance moved in the direction of the force.
2. What are the units for force, distance and work done?
3. What is work done equal to?
4. Write down the relationship between gravitational potential energy, mass, gravitational field strength and height.
5. What are the units of gravitational potential energy, mass, gravitational field strength and height?
6. Write down the equation to calculate the kinetic energy of a moving object.
7. Explain how the conservation of energy produces a link between gravitational potential energy, kinetic energy and work,
8. Complete the following equation: Work Done =
9. What are the units of work done, force and distance?
10. What is power in terms of energy and in terms of work done?

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# Specification focus Questions on Units for Pearson Edexcel IGCSE Physics Energy resources and energy transfers

## Units

For this section, you need to know about the following units. Grab some paper and scribble them down.

What are the units of the following?

1. Mass
2. Energy
3. Length
4. Speed
5. Acceleration
6. Force
7. Time
8. Power