Light Waves

Front

What is absorption in the context of light waves?

Back

Absorption is the process by which a material takes in light energy, preventing it from passing through or being reflected.

Front

What type of wave is light?

Back

Light is an electromagnetic wave that carries energy from one place to another, even through empty space.

Front

How does a yellow filter affect the appearance of a yellow shirt?

Back

A yellow filter allows yellow light to pass through, making the yellow shirt appear yellow.

Front

Why does a red car appear red under white light?

Back

The car reflects only the red light while absorbing the blue and green light.

Front

What is a transparent material?

Back

A transparent material allows light to pass through clearly, enabling you to see objects on the other side.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, changing its speed.

Front

What is reflection?

Back

Reflection is the bouncing back of light when it hits a surface that does not absorb the light.

Front

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

Back

Opaque materials do not allow light to pass through, translucent materials allow some light to pass but not clear images, and transparent materials allow light to pass through clearly.

Front

What happens to light when it hits a black surface?

Back

A black surface absorbs all colors of light and reflects none, making it appear black.

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).