Exploring Light Behavior: Absorption, Reflection, and Transmission

Mr. Anderson's video on light absorption, reflection, and transmission uses a green laser and gummy bears to demonstrate how light interacts with different media. He explains that light can be reflected, absorbed, or transmitted when it moves from one medium to another. Reflection involves light bouncing off surfaces, while absorption converts light into other energy forms, often heat. Transmission allows light to pass through a medium. The video also covers how different wavelengths interact with materials, affecting color perception. The gummy bear experiment illustrates these concepts, showing varying levels of reflection, absorption, and transmission based on the gummy bears' colors and pigments.

What happens to most of the light when a green laser is shined at gummy bears of different colors?

• It disappears.

• It is reflected off the surface.

• It is mostly transmitted through the gummy bears.

• It is completely absorbed.

When light moves from one medium to another, which of the following is NOT a possible interaction?

• Transmission

• Absorption

• Reflection

• Diffusion

What is the angle of incidence equal to in the case of reflection?

• The angle of refraction

• The angle of transmission

• The angle of absorption

• The angle of reflection

What color of light is reflected from the surface of a green leaf?

• Yellow

• Green

• Blue

• Red

What generally happens to light when it is absorbed by a surface?

• It is converted into heat.

• It changes color.

• It is reflected back.

• It passes through the surface.

Which pigments in a leaf absorb a lot of bluish and reddish light?

• Chlorophyll A and B

• Carotenoids

• Anthocyanins

• Xanthophylls

What does it mean when light is transmitted through a medium?

• It is absorbed by the medium.

• It is reflected off the medium.

• It is scattered by the medium.

• It passes through the medium.

Why do some leaves have a reddish or purplish underside?

• To absorb more green light

• To protect from UV radiation

• To attract insects

• To reflect light back up through the leaf

In the gummy bear experiment, where is the absorbed light primarily located?

• Inside the gummy bear

• On the surface of the gummy bear

• On the top of the gummy bear

• Behind the gummy bear

What determines the amount of light transmission, absorption, and reflection in the gummy bear experiment?

• The pigments and chemicals inside the gummy bear

• The distance of the laser from the gummy bear

• The shape of the gummy bear

• The size of the gummy bear