Understanding Energy and Its Forms

What is the definition of energy?

• Energy is the speed of light.

• Energy is the measure of temperature.

• Energy is the capacity to do work or produce change.

• Energy is a type of matter.

Name three forms of energy.

• Solar energy

• Nuclear energy

• Kinetic energy, potential energy, thermal energy

• Wind energy

What type of energy is stored in food?

• Thermal energy

• Nuclear energy

• Chemical energy

• Kinetic energy

How does kinetic energy differ from potential energy?

• Kinetic energy can be stored, while potential energy cannot.

• Kinetic energy is always greater than potential energy.

• Potential energy is related to speed, while kinetic energy is related to height.

• Kinetic energy differs from potential energy in that kinetic energy is associated with motion, while potential energy is associated with position or state.

Give an example of thermal energy in everyday life.

• Heat produced by a stove when cooking food.

• The light emitted by a lamp.

• The energy stored in a battery.

• The cold air from an air conditioner.

What is the main source of solar energy?

• Earth's atmosphere

• The Sun

• Jupiter

• The Moon

Identify a form of energy that can be converted into electricity.

• Solar energy

• Geothermal energy

• Wind energy

• Hydrocarbon energy

What type of energy is associated with moving objects?

• Kinetic energy

• Thermal energy

• Nuclear energy

• Potential energy

Explain how energy can change from one form to another.

• Energy changes are only possible in living organisms.

• Energy can change from one form to another through processes like conversion and transformation.

• Energy cannot be transformed or converted.

• Energy can only exist in one form at a time.

How does sound energy travel?

• Sound energy travels as electromagnetic waves in a vacuum.

• Sound energy travels only through solid materials.

• Sound energy travels as mechanical waves through a medium.

• Sound energy travels instantaneously without a medium.