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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 9

A deep-sea research station is powered by a small modular nuclear reactor.

a.

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

[1]
b.

The reactor operates at a steady electrical power output of 35 MW35\text{ MW}35 MW. Calculate the total energy output of the reactor during a continuous operational run of 6.0 hours6.0\text{ hours}6.0 hours. Give your answer in joules (J\text{J}J) in standard form (scientific notation).

[3]
c.

In a standard year of 365 days365\text{ days}365 days, the research station's reactor was online and generating power for 92%92\%92% of the year. Calculate the number of days during that year that the reactor was online. Give your answer to the nearest whole day.

[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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