Light 5th Grade

What is reflection?

• Reflection is the change in direction of a wavefront at an interface between two different media.

• Reflection is the process of converting sound waves into light waves

• Reflection is the bending of light as it passes through a medium

• Reflection is the absorption of light by a surface

Tags

NGSS.MS-PS4-2

Give an example of reflection in everyday life.

• Reading a book

• Listening to music

• Eating breakfast

• Looking at oneself in the mirror

Explain refraction.

• Refraction is the absorption of light by a medium

• Refraction is the emission of light from a source

• Refraction is the reflection of light off a surface

• Refraction is the bending of light as it passes from one medium to another due to a change in speed.

Tags

NGSS.MS-PS4-2

How does light behave when it passes through a transparent material?

• Light bends at a 90-degree angle

• Light passes through a transparent material in a straight line.

• Light changes color

• Light disappears

Tags

NGSS.MS-PS4-2

Name a common transparent material.

• Plastic

• Diamond

• Glass

• Acrylic

Tags

NGSS.MS-PS4-2

What are opaque materials?

• Opaque materials are substances that only partially block light.

• Opaque materials are substances that allow light to pass through them.

• Opaque materials are transparent materials.

• Opaque materials are substances that do not allow light to pass through them.

Provide an example of an opaque material.

• Glass sheet

• Plastic wrap

• Wooden door

• Transparent film

What is the difference between smooth and rough surfaces in terms of light reflection?

• Smooth surfaces absorb light, while rough surfaces reflect it.

• Smooth surfaces and rough surfaces reflect light in the same way.

• Smooth surfaces reflect light in a single direction, while rough surfaces reflect light in multiple directions.

• Smooth surfaces reflect light in multiple directions, while rough surfaces reflect light in a single direction.

Tags

NGSS.MS-PS4-2

How does light interact with a smooth surface?

• Light absorbs into a smooth surface

• Light scatters randomly on a smooth surface

• Light passes through a smooth surface without any change in direction

• Light reflects off a smooth surface at the same angle it hits it.

Tags

NGSS.MS-PS4-2

Describe the reflection of light on a rough surface.

• Total internal reflection occurs on a rough surface where light is absorbed completely.

• Specular reflection occurs on a rough surface where light is reflected at a single angle.

• Refraction occurs on a rough surface where light bends due to the surface's irregularities.

• Diffuse reflection occurs on a rough surface where light scatters in different directions due to surface irregularities.

Tags

NGSS.MS-PS4-2