Refraction and Light Behavior Concepts

Refraction and Light Behavior Concepts

Assessment

Interactive Video

Physics, Science, Other

6th - 8th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial introduces the concept of light traveling in a straight line and demonstrates a magic trick to show light bending, known as refraction. It explains refraction as the change in direction of light when it moves from one medium to another, due to a change in speed. The video provides examples like a pencil appearing bent in water and a swimming pool looking shallower. It discusses why refraction occurs, focusing on the speed change of light in different media, and explains terms like incident ray, refracted ray, and angles of incidence and refraction. Special cases, such as normal incidence where no bending occurs, are also covered. The video concludes with questions for viewers to test their understanding.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe light traveling in a straight line?

Curvilinear propagation

Circular propagation

Elliptical propagation

Rectilinear propagation

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the phenomenon called when light bends as it passes from air to water?

Dispersion

Reflection

Diffraction

Refraction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of refraction in everyday life?

A shadow on the ground

A pencil appearing bent in water

A rainbow

A mirror reflecting light

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does refraction occur when light passes from one medium to another?

Because the light changes intensity

Because the light changes direction

Because the light changes speed

Because the light changes color

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the speed of light when it enters a denser medium?

It fluctuates

It remains the same

It decreases

It increases

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the angle between the incident ray and the normal called?

Angle of refraction

Angle of reflection

Angle of incidence

Angle of deviation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which case does light bend towards the normal?

When moving perpendicular to the normal

When moving from a rarer to a denser medium

When moving from a denser to a rarer medium

When moving parallel to the normal

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