p1- energy demands

Question 1

name 4 things energy needed in?

Answer 1

homes - for cooking, heating and running appliances
public services, eg schools and hospitals - running machinery and warming rooms
factories and farms - operating heavy-duty machines and production chains
transport - buses, trains, cars and boats all need a fuel source and some trains and trams connect to an electricity supply

Question 2

where does energy come from?

Answer 2

There are different energy resources in the world and the amount of energy stored by them varies greatly. For example, the nuclear energy within 1 kg of uranium contains a very large amount of energy, but the gravitational potential energy stored by many thousands of tonnes of water held back by a dam contains less.

Question 3

what is renewable energy?

Answer 3

Renewable energy is useful energy that is collected from renewable resources, which are naturally replenished on a human timescale, including carbon neutral sources like sunlight, wind, rain, tides, waves, and geothermal heat.

Question 4

what is non renewable energy?

Answer 4

A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption, such as fossil fuels.