Lessons 3-5 Wrap-up Quizizz

In an investigation or experiment, the independent variable is

• the variable that you observe or measure.

• the variable that stays the same to keep the experiment fair.

• the variable that you test or change.

Tags

NGSS.MS-PS2-2

In an investigation or experiment, the dependent variable is

• the variable that you observe or measure.

• the variable that stays the same to keep the experiment fair.

• the variable that you test or change.

In the Measuring Light Investigation we measured how much light would reflect and transmit through three different materials (glass, a regular mirror and a one-way mirror). What was our independent variable in this investigation?

• The amount of light that was reflected and transmitted

• The different types of materials (glass, a regular mirror and a one-way mirror)

• The brightness of the flashlight

Tags

NGSS.MS-PS4-2

In the Measuring Light Investigation we measured how much light would reflect and transmit through three different materials (glass, a regular mirror and a one-way mirror). What was our dependent variable in this investigation?

• The amount of light that was reflected and transmitted

• The different types of materials (glass, a regular mirror and a one-way mirror)

• The brightness of the flashlight

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A one-way mirror is made with a "half-silvered" film attached to a piece of glass or plastic. What does "half-silvered" mean?

• The film is made of microscopic, alternating silver and gold squares that look like a checkerboard

• The one-way mirror is worth half a silver dollar

• The film is made of microscopic, alternating silver and transparent squares that look like a checkerboard

Tags

NGSS.MS-PS4-2

The arrows represent the light shining on a one-way mirror. Which diagram best represents what will happen when that light hits the one-way mirror?

• A

• B

• C

Tags

NGSS.MS-PS4-2

The one-way mirror is made with a half-silvered film which allows about what amount of light to be transmitted and reflected?

• 50% transmitted and 50% reflected

• 80% transmitted and 20% reflected

• 10% transmitted and 90% reflected

Tags

NGSS.MS-PS4-2

Why doesn't light transmit through a regular mirror?

• A mirror is made of a special light absorbing material so all of the light is absorbed

• A mirror is made with a layer of glass, then a layer of silver, and a layer of paint making the mirror opaque and very reflective

• A mirror is transparent so all of the light is reflected off of it

Tags

NGSS.MS-PS4-2

How can we see glass if it is made of transparent material?

• People have laser beam eyes that can see glass even though it is transparent

• Glass is filled with chemicals and gases that fill with light when a light shines on it

• Glass has impurities and dust which allow a small amount of light to reflect off of it

Tags

NGSS.MS-PS4-2

What does the orange, dashed arrow going from the one-way mirror to the teacher's eyes represent?

• The light coming from the light source

• The image of the student since light is reflecting off of him

• The teacher's reflection because a little light is reflecting off of her

Tags

NGSS.MS-PS4-2