1.2 Energy Flashcards
1
Q
What are the three fossil energy sources?
A
- Oil
- Coal
- Natural gas
1
Q
How are fossil energy sources formed?
A
They are non-renewable resources that form when prehistoric plants and animals die and are gradually buried by layers of rock.
2
Q
What does the different types of fossil forming depend on?
A
- what combination of organic matter was present
- how long it was buried and what temperature
- pressure conditions existed as time passed
3
Q
What are the negatives of burning fossil fuels?
A
- creates carbon dioxide
- this adds to climate change by making the earth warmer than it should be
- once fossil fuels are gone, they can’t be replaced
4
Q
Where is nuclear energy released from?
A
From the nucleus, the core of atoms, made up of protons and neutrons
5
Q
How can nuclear energy be produced?
A
- fission - when nuclei of atoms split into several parts
- fusion - when nuclei fuse together
6
Q
How is energy made through nuclear fission?
A
- inside nuclear power plants, nuclear reactors and their equipment contain and control the chain reactions, most commonly fuelled by uranium-235, to produce heat through fission
- the heat warms the reactor’s cooling agent, typically water, to produce steam
- the steam is then challenged to spin turbines, activating an electric generator to create low-carbon electricity
7
Q
What is renewable energy?
A
- a natural source of energy sources that can be used to create electricity
8
Q
What is hydro-electric power?
A
- uses energy from moving water to drive turbines and generate Electricity
- hydro-electric Power schemes use water stored in dams
- tidal and wave energy can also be used to drive turbines
9
Q
What is solar power?
A
- solar panels collect energy from the Sun to create Electricity
10
Q
What is wind energy?
A
- wind turns turbines to create Electricity
- wind farms are located on high ground or out at sea, where the wind is strongest
11
Q
What is geothermal energy?
A
- heat generated below the Earth’s surface
- in active volcanic areas, it can be used to heat water
- the steam produced can power generators and create Electricity
12
Q
What is biomass energy?
A
- energy generated by burning living or once-living organisms (like dung or plant waste)
- it is considered renewable because Biomass growth removes CO2 from the atmosphere
- It stores CO2 it in the soil, plants or trees
13
Q
What are the two energy storage systems?
A
- batteries
- kinetic-pumped storage system
14
Q
What are the two types of batteries?
A
- single-use Batteries, sometimes referred to as Primary Types, are commonlyAlkalinebatteries
- rechargeable batteries
