8–4.2(b) Identify the source of energy for some familiar mechanical devices.

Multiple Choice

Which of the following is an example of a household device that uses electrical energy?

• Refrigerator

• Broom

• Book

• Chair

Multiple Choice

Fill in the blank: A _______ is a household device that uses electrical energy.

• Washing machine

• Table

• Carpet

• Window

Multiple Choice

What is a common use of electrical energy in homes?

• Lighting

• Cooking

• Heating

• All of the above.

Multiple Choice

Which of the following is a common storage form of chemical energy?

• Solar panels

• Batteries

• Wind turbines

• Water dams

Multiple Choice

Chemical energy is used to power which of the following devices?

• Cars

• Smartphones

• Remote controls

• All of the above.

Multiple Choice

Fill in the blank: Chemical energy is stored in _______ and fuel.

• Water

• Batteries

• Air

• Soil

Multiple Choice

What is mechanical energy?

• Energy from motion or stored in springs

• Energy from the sun

• Energy from chemical reactions

• Energy from electrical currents.

Multiple Choice

Which of the following is an example of mechanical energy?

• Wind-up toys

• Solar panels

• Batteries

• Light bulbs

Multiple Choice

Mechanical energy can be stored in ______.

• springs

• batteries

• solar panels

• light bulbs

Multiple Choice

What is the primary source of solar energy?

• The Moon

• The Sun

• The Wind

• The Ocean

Multiple Choice

Which of the following devices can be powered by solar energy?

• Calculators

• Outdoor lights

• Some cars

• All of the above

Multiple Choice

Solar-powered devices are advantageous because they are ______.

• Expensive

• Renewable

• Non-renewable

• Rare

Multiple Choice

What is thermal energy primarily derived from?

• Light

• Heat

• Sound

• Electricity

Multiple Choice

Thermal energy is used to power ______.

• Cars

• Steam engines

• Solar panels

• Wind turbines

Multiple Choice

Which of the following is a common application of thermal energy?

• Powering bicycles

• Powering steam engines

• Powering airplanes

• Powering computers

Multiple Choice

What is nuclear energy derived from?

• Chemical reactions

• Atomic reactions

• Solar reactions

• Mechanical reactions

Multiple Choice

Nuclear energy is used to power _______.

• Cars

• Submarines

• Bicycles

• Smartphones

Multiple Choice

Why do you think nuclear energy isn't used in small devices?

• It's too powerful

• It's too expensive

• It's not efficient

• It's not safe

Multiple Choice

Which of the following is an example of a device that uses multiple energy sources?

• Solar panel

• Wind turbine

• Hybrid car

• Electric scooter

Multiple Choice

Hybrid cars use both _______ and electricity as energy sources.

• Water

• Gas

• Wind

• Solar

Multiple Choice

Can you think of other devices that might use multiple energy sources?

• Yes

• No

Multiple Choice

Which of the following is a renewable energy source?

• Coal

• Sun

• Oil

• Natural Gas

Multiple Choice

Non-renewable energy sources have a ______ supply.

• Unlimited

• Limited

• Constant

• Infinite

Multiple Choice

Why is it important to consider renewable energy sources?

• They are cheaper

• They replenish naturally

• They are more efficient

• They are easier to store.

Multiple Choice

Why is it important to use energy wisely?

• It saves money

• It reduces pollution

• It conserves resources

• All of the above.

Multiple Choice

Which of the following is a way to save energy at home or school?

• Leaving lights on

• Using energy-efficient devices

• Keeping appliances plugged in

• Running water continuously.

Multiple Choice

Energy efficiency can be improved by using _______ devices.

• energy-consuming

• energy-efficient

• outdated

• expensive