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Jugar Test
1. 
Name four possible sources of thermal energy
A.
fossil fuels
B.
wind
C.
Hydraulic energy
D.
Geothermal energy
E.
Solar energy
F.
Biomass energy
2. 
Does the energy in fruit and vegetables come from the Sun? Choose the correct answer.
A.
Yes, vegetables and fruits get energy from the heat of the Earth which is warmed by the sun.
B.
No, the energy in vegetables and fruits is chemical.
C.
Yes, photosynthesis converts solar energy into chemical energy.
D.
No, the energy in vegetables and fruits is produced by water.
E.
No, the energy in vegetables and fruits is produced by the air.
3. 
Think about the energy you use to pedal a bike. Where does it come from?
A.
From the gasoline, in the bicycle's motor.
B.
From the electricity stored in the bicycle battery.
C.
From the solar energy absorbed by the bicycle.
D.
From the chemical energy produced by the human body.
E.
From the thermal energy generated by friction between the bicycle's parts.
4. 
What causes lightning bolts during a thunderstorm?
A.
Lightning is produced by the friction of strong winds.
B.
Lightning is produced by the combustion of gases in the atmosphere.
C.
Lightning is a manifestation of electromagnetic energy that accumulates in clouds.
D.
Lightning is a chemical reaction between elements in the atmosphere.
5. 
Which of these are renewable energy sources?
A.
water
B.
radioactive substances
C.
fossil fuels
D.
biomass
E.
sunlight
F.
wind
6. 
Indicate where the energy in radioactive fuels comes from.
A.
From the disintegration of metals in the Earth's core into minerals such as uranium, thorium and radium.
B.
From the chain reaction that occurs in oil fields.
C.
From the nuclear fission of atoms in fuels such as uranium and plutonium.
D.
From the release of energy during the decay of radioactive materials.