Energy, Sound, and Magnets Quiz

What is the ultimate source of energy on Earth?

• Wind

• Water

• Sun

• Fossil fuels

Which of the following is NOT a renewable source of energy?

• Solar energy

• Wind energy

• Fossil fuels

• Hydropower

Fossil fuels are formed from:

• The remains of dead plants and animals

• Rocks and minerals

• Water and air

• The heat from volcanoes

Which of the following statements is true?

• Energy cannot be transformed into other forms

• Energy from the Sun can be directly converted into electricity using solar panels

• Fossil fuels provide an unlimited supply of energy

• Sound is not a form of energy

Why is it important to conserve energy?

• To reduce pollution and environmental damage

• Because energy sources are unlimited

• To increase fossil fuel consumption

• Because energy cannot be stored

How is sound produced?

• By the movement of air

• By vibrations of objects

• By mixing different gases

• By the heat of the Sun

Which of the following can sound travel through?

• Only air

• Only solids

• Only liquids

• Solids, liquids, and gases

What is noise?

• A pleasant and regular sound

• A sound with a constant frequency

• An unpleasant and irregular sound

• A type of musical instrument

How do dolphins and bats use sound to locate objects?

• By absorbing sound waves

• By using sonar technology

• Through echolocation

• By using their eyesight

Which of the following is a good way to conserve energy at home?

• Leaving lights on when not in use

• Using LED bulbs instead of incandescent bulbs

• Keeping the refrigerator door open

• Using fossil fuels instead of solar energy