What is the primary source of light energy on Earth?
fire
the sun
the moon
the earth
How is thermal energy, or heat, generated?
Through the absorption of sound waves
By the presence of light energy
By the movement of tiny particles within an object
By the release of chemical energy
What type of energy is released when a chemical reaction takes place?
Light energy
Chemical energy
Sound energy
Mechanical energy
How is sound energy created?
By the vibration of objects and air particles
By the transformation of heat energy
By the movement of electrons
By the reflection of light
What does chemical energy do in the context of food?
It absorbs light energy for growth
It creates vibrations that produce sound
It is stored and released when the body digests food
It produces heat in cold environments
What is electrical energy used for?
To make objects heavier
To power machines
To create sound
To store food
