Energy Flashcards
What are the 2 pros of solar energy
1) never runs out
2) no pollution
Name the 3 types of renewable energy
1) solar
2) wind
3) hydroelectric
What are the 4 cons about solar energy
1) batteries wear out
2) panels and batteries are expensive
3) needs sunlight
4) currently solar panels cannot produce enough energy to meet all of our needs
What is the pro for wind energy
1) no pollution, very environmentally friendly
Name the 2 cons for wind energy
1) costly compared to other energy sources
2) take up large areas
What are the 2 non-renewable energy sources
1) fossil fuels (coal,oil,gas)
2) nuclear
What is the pro for fossil fuels
1) produces heat
What are the cons for fossil fuels
1) gives off pollution (greenhouse gases)
2) non-renewable
What are the pros for nuclear energy
1) produces almost no pollution
2) uses a small amount of land
3) makes lots of electricity
What are the cons for nuclear energy
1) creates radioactive waste which is very dangerous and won’t disappear for thousands of years
2) very expensive
3) radiation can pollute the environment
4) waste can be used to make nuclear bombs
Name the pros for hydroelectric energy
1) cheap electricity
2) does not pollute
3) creates jobs
4) irrigates land
Name the cons for hydro electric energy
1) the reservoir created by the dam could flood a large area of land
2) any flooding will displace people and animals
What is the law of conservation
1) Energy can never be destroyed
2) Energy is transferred from one object to another
What is energy
1) power
2) ability to do work
What are the 2 forms of energy
1) potential energy
2) kinetic energy
