Light Travel

What is reflection?

• The process of bouncing light off a surface

• The ability of a program to execute multiple tasks simultaneously

• The act of thinking deeply or carefully about something

• The ability of a program to examine and modify its own structure, behavior, and state at runtime.

What is refraction?

• The absorption of light as it passes through a medium

• The reflection of light as it passes from one medium to another

• The bending of light as it passes from one medium to another due to a change in its speed.

• The scattering of light as it passes through a medium

What is absorption?

• The process of one substance evaporating into thin air.

• The process of one substance changing its chemical composition.

• The process of one substance repelling another substance.

• The process of one substance being taken in or soaked up by another substance.

What is the speed of light in a vacuum?

• 299,792,458 meters per second

• 200,000,000 meters per second

• 300,000,000 meters per second

• 400,000,000 meters per second

When light travels from air to water, it

• reflects

• absorbs

• scatters

• refracts

Which of the following materials is a good reflector of light?

• Mirror

• Glass

• Plastic

• Wood

Which of the following materials is a good absorber of light?

• White or light-colored objects

• Transparent objects

• Reflective objects

• Black or dark-colored objects

When light passes through a prism, it

• reflects

• refracts

• scatters

• absorbs

Which color of light has the longest wavelength?

• yellow

• green

• red

• blue

Which color of light has the shortest wavelength?

• violet

• yellow

• green

• red