Electromagnetic Spectrum

What produces electromagnetic radiation?

• Electrons changing energy levels

• Electrons bonding with other atoms

• Electrons leaving the atomic nucleus

• Electrons becoming protons or neutrons

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Astronomers often scan the sky using devices called radio telescopes. What can you conclude about these devices?

• They send radio broadcasts out to distant stars and planets.

• They pick up radio waves emitted by stars.

• They are less powerful than optical telescopes.

• They can detect ultraviolet radiation.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

What word best describes gamma rays?

• Weak

• Destructive

• Visible

• Harmless

Tags

NGSS.HS-PS1-8

NGSS.HS-PS4-3

The frequency of infrared waves is..

• 10¹² Hz

• 10²⁰ Hz

• 10⁴ Hz

• 10¹⁵ Hz

Tags

NGSS.HS-PS4-1

What is the correct order of the visible light spectrum starting with the longer wavelength?

• Red, yellow, orange, blue, violet, indigo

• Violet, indigo, blue, green, yellow, orange, red

• Green, yellow, blue, indigo, red, orange

• Red, orange, yellow, green, blue, indigo, violet

Tags

NGSS.HS-PS4-1

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41 x 10⁹ Hz. Using the electromagnetic spectrum provided, investigators were most likely using a telescope that detects -

• microwaves

• visible light

• x-rays

• gamma rays

Tags

NGSS.HS-PS4-1

Scientists observed a celestial object emitting a wavelength of 3 x 10^-10m. What type of telescope did the scientists have to use to view this?

• Radio wave

• Infrared ray

• X-ray

• Gamma Ray

Tags

NGSS.HS-PS4-4

Scientists observed a celestial object emitting waves with a frequency of 1.41 x 10⁸ Hz. What type of telescope did the scientists have to use to view this object?

• Radio wave

• Microwave

• X-ray

• Ultraviolet wave

Tags

NGSS.HS-PS4-1

The frequency of an x-ray is --

• 1.41 x 10^-10 Hz

• 1.41 x 10¹⁸ Hz

• 1.41 x 10¹⁰ Hz

• 1.41 x 10^-18 Hz

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

The wavelength of an infrared ray is --

• 10^-5 m

• 10¹² Hz

• 10⁵ m

• 10^-12 Hz

Tags

NGSS.HS-PS4-1