Light Energy

Front

What is light energy?

Back

Light energy is a form of energy that travels in waves and can be seen by the human eye. It is responsible for the brightness we see around us.

Front

What happens to light when it passes through water?

Back

When light passes through water, it bends or changes direction. This bending of light is called refraction.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, such as from air into water.

Front

What is reflection?

Back

Reflection is when light rays bounce off a surface, such as a mirror or a calm body of water.

Front

What is absorption in terms of light?

Back

Absorption occurs when light rays hit an object and are taken in by that object, rather than being reflected or refracted.

Front

What is a prism?

Back

A prism is a transparent object that can bend light and separate it into different colors, creating a spectrum.

Front

What is the visible spectrum?

Back

The visible spectrum is the range of colors that can be seen by the human eye, typically represented as red, orange, yellow, green, blue, indigo, and violet.

Front

How does light travel?

Back

Light travels in straight lines until it hits an object or medium that can change its direction.

Front

What is the difference between transparent, translucent, and opaque materials?

Back

Transparent materials allow light to pass through clearly, translucent materials allow some light to pass but scatter it, and opaque materials do not allow any light to pass through.

Front

What is the role of light in photosynthesis?

Back

Light energy is essential for photosynthesis, as it is used by plants to convert carbon dioxide and water into glucose and oxygen.