The EM Spectrum

Which portion of the electromagnetic spectrum is used to sterilize medical instruments?

• infrared waves

• gamma

• radio waves

• X-rays

Tags

NGSS.HS-PS4-4

Gamma rays, visible light and radio waves are all part of the electromagnetic spectrum. Which one of the lines describes the correct order of decreasing wavelength?

• gamma rays, visible light, radio wave

• radio wave, gamma rays, visible light

• visible light, gamma ray, radio wave

• radio waves, visible light, gamma rays

Tags

NGSS.HS-PS4-1

Which of the following characteristics of EM waves is TRUE?

• Gamma ray has the highest frequency

• Radio wave has the shortest wavelength

• X-ray is not a part of the electromagnetic spectrum

• Infrared has longer wavelength than ultraviolet

Tags

NGSS.HS-PS4-1

Which of the following summarises the change in wave characteristics when going from radio waves to gamma rays in the electromagnetic spectrum?

• frequency: increases; wavelength: decreases; speed in a vacuum: decreases

• frequency decreases; wavelength increases; speed in a vacuum increases

• frequency increases; wavelength decreases; speed in a vacuum remains constant

• frequency decreases; wavelength increases; speed in a vacuum remains constant

Tags

NGSS.HS-PS4-1

A student drew a diagram shown to model an electromagnetic wave from the sun. Scientists have shown that ultraviolet light from the sun that has a wavelength of 315 to 400 nanometers can damage the retina. Use the drop-down menus to create the BEST question for the student to ask to determine whether the electromagnetic wave modeled will cause damage to the retina. What is the ​ (a)   distance between point ​ (b)   on the model?

• horizontal

• W and point Z

• vertical

• Y and point Z

• X and point Y

• W and point Y

Answer explanation

“Horizontal” is the correct response for the first drop-down menu because the wavelength is the horizontal

distance between the same relative locations on two successive wave oscillations. “W and point Z” is the

correct response for the second drop-down menu because these are the same relative locations, the peaks

on two successive wave oscillations.

Of the following waves in the EM Spectrum (based on wavelength), (a)   would come BEFORE Visible Light (which allows us to see).

• infrared

• ultraviolet

• gamma

• x-rays

• visible light

A student drew a diagram shown to model an electromagnetic wave from the sun. Scientists have shown that ultraviolet light from the sun that has a wavelength of 315 to 400 nanometers can damage the retina. Use the drop-down menus to create the BEST question for the student to ask to determine whether the electromagnetic wave modeled will cause damage to the retina. What is the ​ (a)   distance between point ​ (b)   on the model?

• horizontal

• W and point Z

• vertical

• Y and point Z

• X and point Y

• W and point Y

Answer explanation

“Horizontal” is the correct response for the first drop-down menu because the wavelength is the horizontal

distance between the same relative locations on two successive wave oscillations. “W and point Z” is the

correct response for the second drop-down menu because these are the same relative locations, the peaks

on two successive wave oscillations.

Tags

NGSS.HS-PS4-1

Electromagnetic waves that help your body produce vitamin D are called? (a)  

• ultraviolet rays

• x-rays

• gamma rays

Tags

NGSS.HS-PS4-3

Which of the following members of the electromagnetic spectrum are listed in order of INCREASING wavelength?

• microwave, ultraviolet, infrared, x-rays

• x-ray, ultraviolet, infrared, microwave

• ultraviolet, infrared, microwave, x-rays

• infrared, ultraviolet, microwave, x-rays

Tags

NGSS.HS-PS4-1

Which color on the Visible light part of the EM spectrum has the lowest frequency?

• Orange

• Indigo

• Red

• Violet

Tags

NGSS.HS-PS4-1