5.6 Light

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What is reflection of light?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is refraction of light?

Back

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

Front

What is a prism?

Back

A prism is a transparent object that can separate white light into its component colors.

Front

What are the primary colors of light?

Back

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

Front

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

Back

Transparent materials allow light to pass through completely, translucent materials allow some light to pass through, and opaque materials do not allow light to pass through.

Front

What is a shadow?

Back

A shadow is a dark area created when an object blocks light from reaching a surface.

Front

What is the role of the sun in the light spectrum?

Back

The sun is the primary source of natural light on Earth, providing energy for photosynthesis and influencing weather patterns.

Front

What is the electromagnetic spectrum?

Back

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