Chuyên đề 5: Energy 2

Which of the following is a nonrenewable energy source?

• Solar collector

• Wind turbine

• Fossil fuel

• Hydroelectric generator

Which of these is a result of burning fossil fuels?

• Acid rain

• Clean water

• Hydroelectric energy

• Solar energy

There are many reasons why the use of oil needs to be managed carefully. Which of the following is not one of these reasons?

• There are only limited supplies of oil in the Earth.

• Oil spills at sea have killed many marine animals.

• Burning oil contributes to acid rain and the greenhouse effect.

• Oil was created by plants and animals.

What is one advantage of using a hydroelectric plant?

• It is expensive to build.

• It provides renewable energy to human populations.

• It has little effect on water flow.

• It has little effect on wildlife when being constructed.

Which is a non-renewable energy source but NOT a fossil fuel?

• Natural gas

• Oil

• Coal

• Nuclear

Sound is a type of mechanical energy that is transmitted in the form of

• Waves

• Light

• Heat

• Electron

Which material will sound travel through the fastest?

• Water

• Air

• Steel

• Cloth

Which of these transmits sound the fastest?

• Water in a pool

• A metal rod

• Air in a balloon

• Empty space

During a thunderstorm, you see the lightning before you hear the thunder. This is because

• light has a greater mass than sound

• sound has longer wavelengths than light

• light travels faster than sound

• sound and light travel at the same speed

Which technique is the

boat using to find the

distance from the surface

of the ocean to the

bottom?

• Morse code

• Radio

• Sonar

• Sound tracking