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 illumination of our surroundings.

Front

What does it mean to absorb light?

Back

To absorb light means to take in light energy and not reflect or transmit it. For example, a black surface absorbs most of the light that hits it.

Front

What is the term for light that bends when it passes through a material?

Back

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

Front

What is an opaque object?

Back

An opaque object is one that does not allow light to pass through it. Examples include wood and metal.

Front

What is a transparent object?

Back

A transparent object is one that allows light to pass through it without significant scattering. Examples include clear glass and water.

Front

What is a translucent object?

Back

A translucent object allows some light to pass through but scatters it, making objects behind it appear blurry. Examples include frosted glass.

Front

How does light travel?

Back

Light travels in straight lines unless it encounters an object or medium that causes it to bend or scatter.

Front

What is reflection of light?

Back

Reflection is the bouncing back of light when it hits a surface. A mirror is a common example of a reflective surface.

Front

What is the difference between reflection and refraction?

Back

Reflection is when light bounces off a surface, while refraction is when light bends as it passes through a different medium.

Front

What is a lens?

Back

A lens is a transparent object that refracts light to focus or disperse it, commonly used in glasses, cameras, and microscopes.