Glass and Regular Mirrors
One-Way Mirror
Lights and Objects
Vocabulary
100

True or False: Glasses may vary in thickness and shape to accommodate various prescriptions.

TRUE!

100

A piece of glass that is a mirror on one side but that can be seen through like a window from the other side is a…

one-way mirror.

100

What happens when light shines on an object?

It reflects off, transmits through, or both, depending on the material.

*Sometimes it gets absorbed too!

100

A measure of the amount of light reflected by a material is the material’s…

brightness.

200

What is the primary material used to make a regular mirror?

Glass

200

What makes a regular mirror opaque?

The silver layer and paint layer on the back

200

Why can we see most objects around us?

Because they reflect some amount of light.

200

Silver-colored material used to coat glass to make it reflective is…

silvering.

300

A piece of glass that can separate white light is called a…

prism.

300

What is the primary reason that most of the light REFLECTS off the one-way mirror?

Thick silver layer

300

Light travels in…

a straight path.

300

Bounces off defines…

reflect.

400

What happens when light shines on a regular mirror?

The mirror reflects nearly all the light.

400

How is a one-way mirror different from both glass and a regular mirror?

It reflects and transmits light in almost equal amounts.

400

Which of the following items will REFLECT the most light?

mirrors, one-way mirrors, or glass

mirrors

400

A material that allows light to pass through so that objects behind can be seen is considered…

transparent.

500

Why is a piece of glass transparent, but not completely so?

It transmits most of the light but reflects some due to impurities and dust.

500

What process is involved in making a mirror by adding a thick layer of smooth metal on the back of the glass?

silvering
500

Which of the following items will TRANSMIT the most light?

mirrors, one-way mirrors, or glass

glass

500

The small but exact copy of something is a…

scale model.