iGCSE Energy resource and electricity generation

Which of the following is a disadvantage of a tidal barrage?

• It damages habitats in river estuaries.

• It produces sulphur dioxide.

• It is unreliable.

• It is cheap to build.

Burning fossil fuels produces two gases that are harmful to the environment. Which two gases are they?

• sulphur dioxide and oxygen

• carbon dioxide and oxygen

• sulphur dioxide and carbon dioxide

• oxygen and carbon monoxide

Which of the following statements best describes how wave energy works?

• The water drives a turbine as it passes through it.

• Water is heated to drive a turbine.

• Rising water pushes air through a column which drives a turbine.

• Only tides can be used to produce electricity.

Which of the gases produced when burning fossil fuels mixes with water to produce acid rain?

• oxygen

• carbon dioxide

• carbon monoxide

• sulphur dioxide

Which of the following is an advantage of hydroelectric over fossil fuel?

• Hydroelectric power stations have an immediate start up.

• Hydroelectric is a renewable energy resource.

• Hydroelectric power stations do not produce greenhouse gases.

• All of the above.

How are fossil fuels formed?

• from the remains of animals and vegetation over millions of years

• in the sea from compressed rubbish over ten years

• under the sea bed from the remains of dead sea animals over 100 years

• there are lots of fossil fuels under the ground but we do not know how they are formed

Solar heating panels are used to heat water. Why are solar heating panels painted black?

• to look smart

• to absorb the maximum amount of heat energy

• to convert more radiation into electrical energy

• to reflect excess heat energy

Start-up times can have a big impact on what type of power station to build. Which of the following shows start-up times in the order of fastest to slowest?

• coal, oil, gas, nuclear

• gas, nuclear, oil, coal

• gas, oil, coal, nuclear

• they all have the same start-up times

Which of the following is a benefit of nuclear fuel over fossil fuel?

• Nuclear fuel power stations are quicker to start up compared to fossil fuel power stations.

• A nuclear fuel power station does not produce harmful greenhouse gases.

• A nuclear fuel power station does not produce radioactive waste.

• Nuclear power stations are cheap to construct.

Which of the following is a fossil fuel?

• coal

• oil

• natural gas

• all of the above