Light Spectrum

A rainbow happens when sunlight passes through water droplets in the air. Which of the following best explains why?

• Water droplets of different sizes filter out light of different colors.

• Different chemicals in the water get energy and give off light of different colors.

• Light of different colors travels at different speeds through different-sized water droplets.

• Light of different wavelengths is bent at different angles.

The statements below compare the similarities of ultraviolet light and microwaves. Which choice does NOT belong in this list?

• Neither can be seen by the human eye.

• . Scientists use both to study the structure of galaxies.

• They both have wavelengths that are longer than visible light

• They are both types of radiation emitted by the Sun.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

All electromagnetic radiation is light, but we can only see a small portion of this radiation. The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers.

Cone-shaped cells in our eyes act as receivers tuned to the wavelengths in this narrow band of the spectrum. Other portions of the spectrum have wavelengths too large or too small and energetic for the biological limitations of our perception.

• I don't get it.

• GOT IT!

Tags

NGSS.MS-PS4-1

What is the saying that can help you remember the order of the visible spectrum?

• ROYGBIV

• RYOBIVG

• ROYBVIG

• RIBYOVG

Humans can see all segments of the electromagnetic spectrum.

• True

• False

A prism can be used to...

• separate visible light into colors

• make a beam of light brighter

• measure the speed of light

• make UV light visible

Which color REFLECTS all wavelengths of light?

• Red

• Black

• White

• Pink

Tags

NGSS.MS-PS4-2

Which color ABSORBS all wavelengths of light?

• Red

• Black

• White

• Pink

Tags

NGSS.MS-PS4-2

What wave behavior allows the human eye to see color?

• Interference

• Refraction

• Diffraction

• Reflection

Tags

NGSS.MS-PS4-2

Which type of light carries the most energy?

• ultraviolet

• Infrared

• Gamma

Tags

NGSS.HS-PS4-4