Week 2.2 Light Energy Review

Light and light reflections travel in a ___________.

• Straight Line

• Curved Line

Answer explanation

Light travels in a straight line until it strikes an object or travels through one medium to another.

Tags

NGSS.MS-PS4-2

Reflection is when ______________

• light bounces off of an object.

• light is bent and distorted.

Answer explanation

Light is reflected when it bounces off an objects such as mirrors or other shiny surfaces like the surface of water.

Tags

NGSS.MS-PS4-2

Light refracts when _____.

• it bounces off of objects or shiny sufaces.

• it is bent by passing from one medium to another

• it is absorbed by opaque objects

• it is transmitted through a transparent or translucent objects

Answer explanation

Light refracts or bends, when passing from one medium to another, such as from air into water.

Tags

NGSS.MS-PS4-2

What happens when light energy passes from one medium to another?

• The color changes

• The temperature changes

• The speed changes

Answer explanation

When light passes from one medium to another, its speed changes, which causes the light energy to bend.

Tags

NGSS.MS-PS4-2

A refracted image is a distorted or changed image from the original.

• True

• False

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NGSS.MS-PS4-2

The image we see in a reflection is a distorted image from the original.

• True

• False

Answer explanation

The image we see in a reflection is a FLIPPED image from the original.

Tags

NGSS.MS-PS4-2

Match the following vocabulary

• Distorted / Bent / Changed Image

• Refracted

• Waves that travel in a straight line

• Reflected

• Flipped Image

• Light Energy

Tags

NGSS.MS-PS4-2

A mirror or the surface of the water is an example of an object where light energy would ____.

• reflect

• refract

Answer explanation

Light is reflected when it bounces off objects such as mirrors or other shiny surfaces like the surface of water.

Tags

NGSS.MS-PS4-2

All of the following are examples of objects that REFRACT light, EXCEPT:

• eyeglasses

• microscope

• mirror

• camera lens

Answer explanation

A lens is a clear piece of plastic or glass that can be used to refract light; used in eyeglasses, cameras, hand lens, telescopes and microscopes.

Tags

NGSS.MS-PS4-2

What happens when light refracts and passes through a prism?

• The light concentrates in a spot.

• The light bends and separates into strands of colored light.

• The light bends to form an image.

• The light is absorbed by the prism and makes a shadow.

Tags

NGSS.MS-PS4-2