Reflection, Refraction, Opaque Types of Waves

Bouncing of a light ray when it strikes any surface is called ___.

• absorption

• dispersion

• reflection

• refraction

Tags

NGSS.MS-PS4-2

The law of reflection states that ___.

• the angle of reflection is equal to the angle of incidence

• the angle of reflection is greater than the angle of incidence

• the image is laterally inverted

• the image must be upright and same size as the object

Tags

NGSS.MS-PS4-2

A ray of light hits a plane mirror. Using the diagram determine the angle of reflection, r.

Tags

NGSS.MS-PS4-2

One characteristic of a plane mirror image is that it is the same ___.

[1 word]

Tags

NGSS.MS-PS4-2

Two characteristics of a plane mirror image are ___ and ___.

[1 word each]

[Format: ans; ans]

True or False:

Reflections always involve a single medium.

• True

• False

Tags

NGSS.MS-PS4-2

The picture shows the phenomenon known as ___.

• absorption

• dispersion

• reflection

• refraction

Tags

NGSS.MS-PS4-2

A student placed a pencil in a cup of water. The pencil appears broken (to us) because ___.

• light travelling from air to water bends away from the normal.

• light travelling from air to water bends towards the normal.

• light travelling from water to air bends away from the normal.

• light travelling from water to air bends towards the normal.

Tags

NGSS.MS-PS4-2

Refraction occurs due to ___.

• a change in the light's speed when it enters a new medium

• the light ray bouncing off a boundary

Tags

NGSS.MS-PS4-2

How does light behave as it enters these mediums?

• continue its path in a straight line.

• bends towards the normal

• bends away from the normal
• bounce off the surface