Intro to Primary Colors

To view timestamps in the description (answers each question) click "copy link" on the video, then paste it in a separate browser tab.

Question 1: Do we always see colors that are present in reality?

• No

• Yes

Answer explanation

No. When we see something that is different than reality, we call that an optical illusion.

If we shine two different colors of light at the same place, will that create a new color in reality?

• No

• Yes

Answer explanation

No. It may look like a new color, but the original colors are still there and there is not a new light color present.

Do digital screens (such as on smartphones), use additive color mixing?

• No

• Yes

Answer explanation

Yes. Using primary light colors to give the perception of other colors is called additive color mixing.

Tags

NGSS.MS-PS4-3

Are common primary light colors cyan, magenta and yellow?

• No

• Yes

Answer explanation

No. Those are the common primary ink colors.

Can we make white light by combining just three primary light colors?

• No

• Yes

Answer explanation

Yes. This is how our screens can make us perceive that we're seeing white light.

Do inkjet printers use additive color mixing?

• No

• Yes

Answer explanation

No. They use subtractive color mixing.

Are common primary ink colors red, green and blue?

• No

• Yes

Answer explanation

No. Those are the common primary light colors, such as used on digital screens.

Does each unique color on a digital screen have an identification code that we can set or copy?

• No

• Yes

Answer explanation

Yes. For example, a common code is the Hex color code and is often accessible on digital color palettes.

Tags

NGSS.MS-PS4-3