Forms of Energy and Chemical Energy

What is energy used for?

• To stop machines

• To make things invisible

• To make things move

• To create new things

What happens when a match is struck?

• Chemical energy is transformed into light and heat

• Heat is transformed into kinetic energy

• Kinetic energy is transformed into light and heat

• Potential energy is transformed into sound

What transformation takes place when an electric kettle is switched on?

• Electrical energy is transformed into light

• Electrical energy is transformed into heat

• Sound is transformed into kinetic energy

• Heat is transformed into electrical energy

When a roller coaster rolls down the track, what energy transformation occurs?

• Gravitational potential energy is transformed into kinetic energy

• Kinetic energy is transformed into potential energy

• Sound energy is transformed into heat energy

• Chemical energy is transformed into electrical energy

What is often produced in the examples provided?

• Kinetic and potential energy

• Heat and light

• Sound and light

• Heat and sound

What is the main source of nuclear energy on Earth?

• Geothermal energy

• Fossil fuels

• Sunlight

• Uranium

Which of the following is an example of chemical energy?

• Sunlight

• Wind

• Gasoline

• Sound

Which form of energy is generated by the sun?

• Solar energy

• Geothermal energy

• Wind energy

• Electrical energy

Which type of energy is stored in the nucleus of an atom?

• Solar energy

• Chemical energy

• Nuclear energy

• Kinetic energy

A battery-operated toy is using what type of energy to function?

• Sound energy

• Solar energy

• Electrical energy

• Thermal energy

Answer explanation

The energy used by a battery-operated toy to function is electrical energy. When a battery is inserted into the toy, it converts stored chemical energy into electrical energy, which powers the toy's components such as motors, lights, or sound systems, allowing it to operate. This is a great example to discuss with students about energy transformations and how different forms of energy can be converted into each other.