What is Light?

Front

What is the speed of light in a vacuum?

Back

186,000 miles per second.

Front

Why is light important for plants?

Back

Light is essential for photosynthesis, which allows plants to grow.

Front

Which of the following is NOT a source of light: the sun, a light bulb, or the moon?

Back

The moon is not a source of light; it reflects light from the sun.

Front

What is white light composed of?

Back

White light is made up of all the colors of the rainbow.

Front

What would happen in a world without light?

Back

There would be no visibility, no photosynthesis, and many ecosystems would collapse.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including visible light.

Front

What is the difference between reflection and refraction of light?

Back

Reflection is the bouncing back of light when it hits a surface, while refraction is the bending of light as it passes from one medium to another.

Front

What is the role of light in photosynthesis?

Back

Light provides the energy needed for plants to convert carbon dioxide and water into glucose and oxygen.

Front

What are primary colors of light?

Back

The primary colors of light are red, green, and blue.

Front

What is a prism and how does it relate to light?

Back

A prism is a transparent optical element that refracts light, separating it into its constituent colors.