Light(II) - Physics

Question 1

What is the reflection of light?

Answer 1

This is the bouncing off of light after hitting a surface

Question 2

What is the refraction of light?

Answer 2

This is the bending of light from one transparent surface to another.

Question 3

List 3 importance of refraction

Answer 3

magnifying glasses
rainbows
lenses

Question 4

Refraction usually needs ___and___ to work

Answer 4

air and water

Question 5

How are shadows formed?

Answer 5

This occurs when opaque objects are placed in front a light beam.

Question 6

List and explain the 2 parts of a shadow

Answer 6

Umbra: the darkest part of a shadow
Penumbra: Surrounds the umbra and is the lighter part of a shadow

Question 7

What is the dispersion of light?

Answer 7

This is the separation of white light into different colors -ROYGBIV(Red, Orange, Yellow, Green, Blue, Indigo, Violet)

Question 8

How are rainbows formed?

Answer 8

Rainbows are formed when sunlight is scattered from raindrops into the eyes of an observer.