Electromagnetic Spectrum

Which of the following has the highest energy?

• microwave

• ultraviolet rays

• x-rays

• infrared waves

Tags

NGSS.HS-PS4-4

What unit is used to measure the number of complete wave cycles in a second?

• Hertz

• Sievert

• rem

• frequency

Tags

NGSS.HS-PS4-1

The regions of the electromagnetic region move at the speed of light. Which of the following values shows the speed of light in vacuum?

• 3.0 x 10⁸ m/s

• 3.0 x 10^-8 m/s

• 3.0 x 10¹⁸ m/s

• 3.0 x 10⁸⁰ m/s

Tags

NGSS.HS-PS4-1

This refers to the emission of light when an object is heated at a high temperature.

• luminescence

• incandescence

• bioluminescence

Tags

NGSS.HS-PS4-3

This EM region is used in remote controls, night vision cameras, and thermometers.

• infrared waves

• x-rays

• microwaves

• ultraviolet rays

Tags

NGSS.HS-PS4-5

Among the seven colors of visible light, which color has the least energy?

• red

• violet

• yellow

• blue

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

A high-frequency radio wave that is used in long-distance communication.

• microwave

• radiowave

• infrared rays

• ultraviolet rays

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

Which of the following is arranged in decreasing frequency?

• radio waves, microwaves, x-rays, gamma rays

• gamma rays, x-rays, infrared, visible light

• microwaves, infrared, ultraviolet waves, gamma rays

• x-ray, ultraviolet waves, microwaves, radiowaves

Tags

NGSS.HS-PS4-1

The following are uses in radiowaves EXCEPT:

• Magnetic Resonance Imaging

• Pest Control

• Radio Detection and Ranging

• Universal Product Code

Tags

NGSS.HS-PS4-5

Who predicted the existence of electromagnetic waves?

• Heinrich Hertz

• James Clerk Maxwell

• Isaac Newton

• Albert Einstein