AQA Physics P1.4
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Which part of a power station turns kinetic energy into electrical energy?
Name the two particles in the nucleus of an atom
Name 3 renewable ways to generate electricity
- Any 3 from:
What does a solar heating panel do?
Traps heat from the sun and uses it to warm water
What advantage does Carbon Capture & Storage (CCS) give power stations?
Traps the carbon dioxide before it is released. This then does not contribute to the greenhouse effect and global warming.
Why are high voltages used to transmit power on power lines?
It is more efficient (less energy is lost)
Which type of power station has the longest start-up time?
Which releases more energy per kg, plutonium or coal?
What is a biofuel?
A fuel obtained from living or recently living organisms
What is the name of the process whereby an atom's nucleus splits into 2 or more pieces?
Why is tidal power more reliable than wind power?
The movement of tides happens regularly every day whereas wind does not always blow.
What do we call geothermal heat used to heat buildings?
Name 2 problems caused by burning fossil fuels
- 1. Increased greenhouse gases causing global warming
- 2. Acid rain (from the sulfur released)
What do step-up transformers do?
Increase the voltage and reduce the current
What type of power stations are used to fulfil the base-load demand
Nuclear, Coal, Oil
Give two examples of biofuels
- Any two from:
- Wood chip
What is the name of the big fan that is turned by steam inside a power station
What does a solar cell do?
Converts solar energy into electrical energy
What gas causes acid rain?
What is the purpose of transformers in the National Grid?
Increase or reduce voltages to the levels required
What do step-down transformers do?
Increase the current and reduce the voltage
Why is nuclear fuel classed as non-renewable?
Because supplies of nuclear fuel will eventually run out (even though they may last a long time)
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