Revision Quiz Ch 3 - Energy

Which of the following statements about energy is true?

• Energy is a force.

• Energy is the ability to do work.

• Energy can be created.

• Energy can be destroyed.

Match each object with the type of energy it produces/stores.

• kinetic energy

• 
• light and heat energy

• 
• chemical potential energy

• 
• sound energy

• 

Which of the following statements about fossil fuels is NOT true?

• Fossil fuels are formed from the animals and plants that died a long time ago.

• There is unlimited amount of fossil fuels.

• Fossil fuels are used in power plants to produce electricity.

• Solar energy and hydropower are used as alternative sources of energy to fossil fuels.

Andrew’s calculator has a solar panel. What is the energy change that occurs in a solar panel?

• chemical potential energy to electrical energy

• heat energy to electrical energy

• light energy to electrical energy

• sound energy to electrical energy

Which of the following actions does not help to conserve energy?

• leaving the fridge door open for a long time to decide on what to eat

• switching on the fan instead of the air-con on a warm day

• switching off the radio when we are not listening to it

• taking a cold shower on a hot day instead of switching on the heater

Mario jumped from the top of the pipe A and reached the highest point of his jump at B. He then fell to stomp his enemies at C, before bouncing onto the brick at D. At which position did Mario have the greatest gravitational potential energy?

• A

• B

• C

• D

Which of the energy source is non-renewable?

• biomass

• fossil fuels

• hydropower

• solar energy

When an apple fell on Newton’s head, what was the energy change that occurred?

• chemical energy → kinetic energy

• kinetic energy → gravitational potential energy

• gravitational potential energy → heat energy

• gravitational potential energy → kinetic energy

What type of renewable energy does the diagram show?

• hydroelectric energy

• tidal energy

• solar energy

• wind energy

The diagram shows a dam used to generate electricity.

What is the main energy conversion for the dam?

• gravitational potential energy to electrical energy

• wind energy to electrical energy

• chemical potential to electrical energy

• heat energy to electrical energy