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WorksheetsSOURCES OF ENERGY
Total questions: 20
Worksheet time: 10mins
Hydro power plants convert.................of falling water into electricity
Potential energy
Kinetic energy
Heat energy
Wave energy
Energy that uses heat from within the earth is ____.
Nuclear
Geothermal
Wind
Solar
What do geothermal and solar energy have in common?
Both rely on the movement of turbines
Neither is expensive
Neither produces greenhouse gases
Sunlight is needed for both
Does the size of the solar panel affect how much sun light is taken in?
Yes
No
It depends if the panel is made from something else
It doesn't matter
Solar (or PV) cells are made of many individuals cell stacked together, and these are made of materials called ______________.
diodes
electrometals
semiconductors
solarductors
What is the photovoltaic effect?
Process of creating photons from voltage
Process of converting kinetic energy into electricity
Process of creating light from electricity
Process of converting sunlight into electricity
Energy transformations in Hydroelectric power plant
P.E of water → K.E of water → K.E. of turbine → Electrical energy
P.E of water → K.E of turbine → Electrical energy
K.E of water →P.E of water→ K.E of turbine → Electrical energy
P.E of water → K.E of turbine → Electrical energy →P.E of water
Which is the ultimate source of energy?
Water
Sun
Uranium
Fossil fuels
A group of solar cells is called a solar cell panel.
TRUE
FALSE
Which of the following is renewable energy?
Wind energy
Petroleum
Natural gas
Fossil fuels
Where does solar power get its energy from?
From the burning of fossil fuels like coal
Moving water sources like rivers
The rays of the Sun
The internal heat of the Earth
All of the above
Solar energy is ____________.
plentiful
infinite
clean and safe
all are correct
What do you call an energy converting system that transforms electrical energy into mechanical movement?
Electric motor
Electric field
Electric generator
Electric plasma
What do you call a device that transforms mechanical energy into electrical energy?
electrical charge
electrical motor
electrical generator
electrical current
