energy resources Flashcards
What are the two main types of energy sources?
“Renewable and Non-renewable”
Give three examples of renewable energy sources.
“Solar
Give three examples of non-renewable energy sources.
“Fossil fuels (coal
How is electricity generated from fossil fuels?
“Burning fossil fuels heats water
What is a biofuel?
“A fuel derived from plant or animal material
How does hydroelectric power work?
“Water flows through a dam
How does a solar panel generate electricity?
“It converts sunlight into electrical energy using photovoltaic cells.”
What energy conversion occurs in a nuclear power plant?
“Nuclear energy → Thermal energy → Kinetic energy → Electrical energy”
How is geothermal energy used to generate electricity?
“Hot underground rocks heat water to steam
How does wind power generate electricity?
“Wind turns turbine blades
How do tidal power stations generate electricity?
“Moving water from tides drives turbines
How can wave energy be harnessed?
“Waves move floating devices or push air through turbines to generate electricity.”
What are three advantages of renewable energy?
“Sustainable
What are three disadvantages of renewable energy?
“Weather-dependent (e.g.
What are three disadvantages of fossil fuels?
“Produces CO₂
Why is nuclear energy considered non-renewable?
“Uses uranium
Which energy sources require a boiler, turbine, and generator?
“Fossil fuels
Why is wind energy unreliable?
“Wind speed varies
How does solar energy impact the environment?
“Low pollution
Describe an experiment to compare the energy output of different fuels.
“Burn equal masses of different fuels under a beaker of water. Measure the temperature change to determine energy output.”
