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1.1 Energy changes in a system, and the ways energy is stored before and after such changes

1.1 Energy changes in a system, and the ways energy is stored before and after such changes

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Question 18

This question is about nuclear power station calculations.

a.

Write down the equation which links energy (EEE), power (PPP), and time (ttt).

[1]
b.

A nuclear power station has a continuous power output of 650 MW650\text{ MW}650 MW. Calculate the energy output of this power station if it operates continuously for 4500 s. Give your answer in Joules (J\text{J}J) in standard form.

[3]
c.

Nuclear power stations do not generate electricity every day of the year due to scheduled maintenance. A specific nuclear power station operated for 88% of a year (where 1 year=365 days1\text{ year} = 365\text{ days}1 year=365 days). Calculate the number of days during that year that the power station generated electricity.

[2]
Markscheme

1.1 Energy changes in a system, and the ways energy is stored before and after such changes Questions

  1. GCSE
  2. /Physics
  3. /1.1 Energy changes in a system, and the ways energy is stored before and after such changes

44 exam-style questions on AQA GCSE Physics 1.1 Energy changes in a system, and the ways energy is stored before and after such changes, covering 1.1.1 Energy stores and systems, 1.1.2 Changes in energy, 1.1.3 Energy changes in systems, and 1.1.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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