Properties of 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 when we say light travels in straight lines?

Back

It means that light moves in a straight path unless it encounters an object or medium that changes its direction.

Front

What is a transparent material?

Back

A transparent material allows all light to pass through it without scattering, making objects behind it clearly visible.

Front

What is a translucent material?

Back

A translucent material allows some light to pass through but scatters it, making objects behind it appear blurry.

Front

What is an opaque material?

Back

An opaque material does not allow any light to pass through it, making it impossible to see objects behind it.

Front

What is a convex lens?

Back

A convex lens is a lens that is thicker in the middle than at the edges and focuses light rays to a single point.

Front

What is a concave lens?

Back

A concave lens is a lens that is thinner in the middle than at the edges and diverges light rays, causing them to spread out.

Front

What is reflection of light?

Back

Reflection is the bouncing back of light rays when they hit a surface, such as a mirror or calm water.

Front

What is refraction of light?

Back

Refraction is the bending of light rays as they pass from one medium to another, changing their speed.

Front

What is an optical illusion?

Back

An optical illusion is a visual phenomenon that tricks the brain into seeing something that is not there or seeing it differently than it is.