Unit 6 Waves Open Note Quiz

Which is true of infrared waves?

• They have shorter wavelengths than X-rays.

• They give off more energy than gamma rays.

• They have longer wavelengths than ultraviolet waves.

• They have higher frequencies than visible light

Visible light passes through glass. Other types of electromagnetic radiation are able to pass through other materials in a similar way. Which of the following are used in medical technology because they can pass through some parts of the human body?

• X-rays

• infrared waves

• microwaves

• ultraviolet rays

Compared to visible light, ultraviolet radiation is more harmful to human skin and eyes because ultraviolet radiation has a

• shorter wavelength than visible light

• longer wavelength than visible light

• higher frequency than visible light

• lower frequency than visible light

The figure below shows the regions of the electromagnetic spectrum. Which of the following statements best compares the wavelengths of the regions of the electromagnetic spectrum?

• Microwaves are shorter than x-rays.

• Infrared waves are longer than gamma rays.

• Radio waves are shorter than visible light waves.

• Ultraviolet waves are longer than visible light waves.

Two students stretch a rope horizontally between them. One student moves one end of the rope up and down repeatedly for a short time. Which of the following describes the frequency of the waves in the rope?

• the height that the rope reaches when moved up

• the amount of time it takes for one wave to travel the length of the rope

• the number of times the rope is moved up and down in a time interval

• the distance measured between the crest of one wave and the crest of the next wave in the rope

Which of the following is the best example of a wave?

• a stone rolling downhill

• a vehicle traveling on a bumpy road

• a string vibrating on a guitar

• a grasshopper jumping up and down

Which of the following electromagnetic radiations has the shortest wavelength?

• ultraviolet

• visible

• infrared

• radio

Which of the following colors of visible light has the longest wavelength?

• red

• blue

• green

• orange

X-ray waves and infrared waves are both electromagnetic waves. Which of the following describes another property x-ray waves and infrared waves share?

• A) Both waves are longitudinal.

• B) Both waves have the same frequency.

• C) Both waves have the same wavelength.

• D) Both waves travel at the same speed in a vacuum.

The diagram below shows a wave trace. Distance Z is a measure of

• A) amplitude

• B) wavelength

• C) frequency

• D) speed