IGCSE Physics - Energy

What is a major advantage of using oil as an energy source?

Oil is cheap to extract and can be converted into energy easily.

A disadvantage of oil extraction is its impact on the environment. What is one negative effect?

It gives off atmospheric pollutants and greenhouse gases, contributing to global warming.

Natural gas is considered cleaner than oil. What is one advantage of natural gas?

It produces less greenhouse gases compared to oil.

What is a major disadvantage of using natural gas?

Natural gas is non-renewable and will eventually run out.

What is an advantage of coal?

Coal is very cheap and can produce a lot of electricity.

What makes coal a less desirable energy source compared to others?

Coal produces the most greenhouse gases compared to oil and natural gas.

One of the advantages of nuclear power is the amount of electricity it can produce. What is another advantage?

It does not release greenhouse gases.

What is a significant risk associated with nuclear power?

Accidents, such as nuclear power plant explosions, can have dangerous long-term effects.

What is a key advantage of geothermal energy?

Geothermal energy is low cost and does not release greenhouse gases.

What is a disadvantage of geothermal energy?

It is only available in selected areas.

What is one of the main benefits of wind energy?

Wind energy does not produce greenhouse gases and is a renewable source.

What is a drawback of wind energy regarding electricity production?

It does not produce constant electricity and is dependent on wind flow.

Hydropower is a major renewable energy source. What is an advantage of hydropower?

It produces a lot of electricity with no pollution or greenhouse gas emissions.

What is a disadvantage of hydropower?

Hydropower has expensive construction costs and can reduce tidal flow.

Solar panels are a renewable energy source. What is their main advantage?

They provide an infinite supply of energy.

What is a disadvantage of solar panels?

The manufacture and implementation of solar panels are costly.

What environmental concern is associated with coal mining?

Coal mining is destructive and unsightly.

What type of energy source is dependent on the presence of wind?

Wind energy is dependent on wind flow.

What problem can hydropower cause for marine life?

Hydropower can impede the flow of sewage out to sea.

What is a characteristic of geothermal energy compared to other energy sources?

It does not release greenhouse gases.