Types
What is energy derived from the sun called?
Solar
What is the advantage and disadvantage of Nuclear energy?
1) produces no air pollution
2) relatively small land-use impact
1) has safety risks
2) need to dispose of radioactive wastes
Give an explanation for Coal
formed from the remains of plants of long ago; the older it is, the more energy it contains.
What is energy efficiency? Also give three examples
Energy efficiency is the percentage of energy put into a system that does useful work.
Some ways to increase energy efficiency is to use LED bulbs, recycle, use alternative fuels
Explain energy conservation.
Energy conservation is the process of saving energy by reducing energy use and waste.
What is energy from wind turbines known as?
Wind
What is the advantage and disadvantage of using fossil fuels?
1) easily converted to electricity
2) easily extracted and transported
1) air pollution
2) environmental damage
Give an explanation for Petroleum
burn and collect to form certain materials and products- gasoline, plastics, nylon
How has energy consumption changed over time?
Energy consumption has increased.
What is the energy in fossil fuels often converted (changed) into?
Electricity
Which energy source uses water to generate power?
Hydro
What is the advantage and disadvantage of Wind energy?
1) takes up little space
2) generates a lot of power with very little carbon emissions
1) Noisy and poses a threat to wild bird populations
2) No wind = no power
Give an explanation for Natural Gas
burns the cleanest of the fossil fuels since it does not need to be converted to electricity
Explain how a hybrid car uses energy.
A hybrid car uses an efficient gasoline engine along with an electric motor.
How does a fuel cell produce electricity?
By combining hydrogen fuel with oxygen from the air
What do we call energy from the Earth's heat?
Geothermal
What is the advantage and disadvantage of Hydrogen (fuel Cells) energy?
1) does not give off harmful emissions
2) good fuel alternative for cars/trucks
1) Expensive to make fuel cells
2) Difficult to supply hydrogen reliably (no infrastructure in place currently)
Are fossil Fuels considered clean energy? and explain
No, they all majorly pollute the air by giving off greenhouse gas emissions.
Are energy use per person in developing countries going up or down?
Energy use in developing countries is going up as they progress.
Why don’t people want nuclear power plants for energy, though they have zero carbon emissions (therefore, the construction of nuclear power plants has slowed down)?
People think nuclear reactors are unsafe
Which type of energy is produced from organic materials?
Biomass
What is the advantage and disadvantage of Geothermal energy?
1) no carbon emissions
2) consistent and reliable source of heat energy
1) high cost
2) can only be done in certain places
Compare the amount of energy consumed per person in a developed versus developing country and give examples of countries for each.
People in developed countries (US, Canada, Japan) consume more energy than people in developing countries (Mexico, Nigeria, Kenya).
(Although developed countries are trending to using less energy than in the past.)
Fuel’s suitability for a purpose needs three things. What are they?
A fuel’s suitability is dependent on energy content, cost, and availability.
What is alternative energy?
Energy that does not come from fossil fuels