Energy Conversion and Science Questions

Which of the following best describes the Law of Conservation of Energy?

• Energy can be created and destroyed

• Energy remains constant but can change form

• Energy always increases in a closed system

• Energy cannot be transferred

Which of the following is an example of chemical energy being converted to mechanical energy?

• A solar panel charging a battery

• A boy kicking a ball

• A car engine running on petrol

• A windmill turning in the breeze

What kind of energy transformation happens when you switch on an electric fan?

• Electrical to thermal

• Electrical to kinetic

• Chemical to electrical

• Kinetic to electrical

What form of energy is stored in food?

• Kinetic energy

• Light energy

• Chemical energy

• Mechanical energy

Photosynthesis primarily transforms which type of energy into chemical energy?

• Heat

• Light

• Sound

• Mechanical

When Tammy was sweating after playing football, what form of energy conversion occurred?

• Mechanical to sound

• Kinetic to potential

• Mechanical to thermal

• Chemical to light

Which of the following devices transforms electrical energy into sound?

• Television

• Radio

• Fan

• Refrigerator

The energy you use when running comes primarily from:

• Kinetic energy in your legs

• Chemical energy stored in your body

• Heat energy from the sun

• Light energy from your eyes

Which type of energy is involved when you turn on a heater?

• Sound energy

• Electrical to thermal energy

• Kinetic energy

• Potential to chemical energy

What energy change occurs in a flashlight?

• Chemical to light energy

• Electrical to chemical energy

• Kinetic to heat energy

• Mechanical to light energy