The Electromagnetic Spectrum

A pet lizard and its shelter must be kept warm. What type of electromagnetic waves would most likely be used? gamma rays infrared light ultraviolet light microwaves

infrared light

Which part of the electromagnetic spectrum is typically used to make images based on the temperatures of objects? X-rays radio waves infrared light visible light

infrared light

How can electromagnetic waves be used to fight a forest fire? Gamma ray images can show hot spots as radioactive areas. Ultraviolet images can show hot spots as fluorescent areas. X-ray images can show hot spots as white areas. Infrared images can show hot spots as red areas.

Infrared images can show hot spots as red areas.

A wave is traveling through X. What can be known about X? It is empty space. It is any medium. It is a solid. It is a liquid.

It is any medium.

Someone places a chocolate bar near a working radar set that is used to locate ships and airplanes. Which best describes what is likely to happen to the chocolate bar? It changes color as it absorbs visible light from the radar set. It softens and melts as it absorbs microwaves from the radar set. It becomes radioactive after it absorbs gamma rays from the radar set. It begins to fluoresce after it absorbs ultraviolet light from the radar set.

It softens and melts as it absorbs microwaves from the radar set.

Which describes the changes in visible light moving from red to violet? The energy increases. The speed decreases. The wavelength increases. The frequency decreases.

The energy increases.

Which of these objects would most likely cause a sound wave? a drill laying on its side a nail stuck into a piece of wood a hammer hitting a metal cup a wrench locked in place around a bolt

a hammer hitting a metal cup

Which electromagnetic waves have the shortest wavelength and the highest frequency? _________waves.

gamma

Which types of electromagnetic waves have longer wavelengths than the waves that make up visible light? Check all that apply. radio waves gamma rays microwaves infrared light ultraviolet light X-rays

radio waves microwaves infrared light

A high amplitude sound wave can best be compared to a: short hill. tall hill. tightly coiled spring. stretched-out spring.

tightly coiled spring.

What is the frequency of this wave? 1 2 3 4

2

What is the difference between a mechanical wave and an electromagnetic wave? A mechanical wave travels through empty space, while an electromagnetic wave travels through matter. A mechanical wave has a short wavelength, while all electromagnetic waves have long wavelengths. A mechanical wave has a high frequency, while all electromagnetic waves have low frequencies. A mechanical wave travels through matter, while an electromagnetic wave travels through empty space.

A mechanical wave travels through matter, while an electromagnetic wave travels through empty space.

The_______of a wave is the density of the medium's particles at the compression of the wave.

amplitude

Which side of the electromagnetic spectrum has shorter wavelengths? Which side of the electromagnetic spectrum has higher energy? Which side of the electromagnetic spectrum has higher frequencies?

blue blue blue

Allison wants to calculate the speed of a sound wave. Which formula should she use? distance traveled / amplitude number of wavelengths / amplitude number of wavelengths / time distance traveled / time

distance traveled / time

Quentin made a table to summarize uses of electromagnetic waves. Which should he write in the "Use" section for X-rays? music broadcasts luggage inspections night-vision goggles digital photographs

luggage inspections

Which part of the electromagnetic spectrum is nearest to radio waves? X-rays microwaves gamma rays ultraviolet light

microwaves

Which best describes vibration? the distance traveled per unit in time the action of moving back and forth quickly and steadily the distance between one compression and the compression next to it the action of moving through a material or substance

the action of moving back and forth quickly and steadily

In which part of the wave are the particles of the medium closer together? rarefactions compressions solids liquids

compressions

Which are uses of electromagnetic waves? Check all that apply. cooking foods insulating buildings using heat lamps transmitting radio signals using medical imaging lighting rooms cooling refrigerators

cooking foods using heat lamps transmitting radio signals using medical imaging lighting rooms

In sound waves, the distance between compressions is called the wavelength. What is the distance between rarefactions called? speed frequency amplitude wavelength

wavelength

When sound is created, it travels to the ear through a__________. compression. medium. rarefaction. surface.

medium.

A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely to use to check the dog? gamma rays microwaves radio waves X-rays

X-rays

Kamala made a table to describe parts of the electromagnetic spectrum. What mistake did Kamala make? Gamma rays should have a very high frequency, not a very low frequency. Visible light should have a low frequency and a long wavelength. Infrared light should have a short wavelength, not a long wavelength. Microwaves should have a high frequency and a short wavelength.

Gamma rays should have a very high frequency, not a very low frequency.

A student takes notes in class. Sound Waves I. Created by a vibration A. Vibration: something that causes air molecules to move back and forth quickly and steadily II. Move through a medium A. Solid B. Liquid C. Gas Which line of her notes contains an error? I I A II B II C

I A

Why do waves move faster at higher temperatures and in a solid phase? There is more energy and the particles are farther apart. There is less energy and the particles are closer together. There is less energy and the particles are farther apart. There is more energy and the particles are closer together.

There is more energy and the particles are closer together.

What makes thermal imaging cameras useful? They can detect differences in color. They can detect differences in wave speeds. They can detect differences in temperature. They can detect mechanical waves.

They can detect differences in temperature.

What characteristic do all parts of the electromagnetic spectrum share? They have the same wavelength. They have the same frequency. They interact in the same way with any matter. They travel at the same speed through empty space.

They travel at the same speed through empty space.

If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime? Ultraviolet light detects the presence of radioactive substances. Ultraviolet light shows cold areas as blue and warm areas as red. Ultraviolet light causes substances to fluoresce and give off visible light. Ultraviolet light transmits information to AM and FM radio receivers.

Ultraviolet light causes substances to fluoresce and give off visible light.

A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the display? Infrared light shining on the minerals will cause them to give off visible light. Visible light shining on the minerals will cause them to give off infrared light. Ultraviolet light shining on the minerals will cause them to give off visible light. Visible light shining on the minerals will cause them to give off ultraviolet light.

Ultraviolet light shining on the minerals will cause them to give off visible light.

Gino made a table to describe parts of the electromagnetic spectrum. What mistake did Gino make? X-rays should have a low frequency and a long wavelength. Infrared light should have a high frequency, not a low frequency. Radio waves should have a very high frequency and a very short wavelength. Ultraviolet light should have a short wavelength, not a long wavelength.

Ultraviolet light should have a short wavelength, not a long wavelength.

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct? X-rays have lower energy than gamma rays because X-rays have higher frequencies. X-rays have lower energy than gamma rays because X-rays have shorter wavelengths. Visible light has higher energy than infrared light because visible light has longer wavelengths. Visible light has higher energy than infrared light because visible light has higher frequencies.

Visible light has higher energy than infrared light because visible light has higher frequencies.

Which statement can be made about waves A and B? Wave A has a lower amplitude than Wave B. Wave A has a higher amplitude than Wave B. Wave A has a lower frequency than Wave B. Wave A has a higher frequency than Wave B.

Wave A has a higher amplitude than Wave B.

Yulia observed a sound wave moving through a solid medium at four different temperatures, and she recorded observations about each one in the chart. Which correctly ranks, from fastest to slowest, the time it will take one wavelength to pass a certain point? Wave X → Wave Y → Wave W → Wave Z Wave Z → Wave W → Wave Y → Wave X Wave X → Wave W → Wave Y → Wave Z Wave Z → Wave Y → Wave W → Wave X

Wave X → Wave W → Wave Y → Wave Z

Which are characteristics of electromagnetic waves? Check all that apply. They travel only through matter. Waves with a higher frequency have a shorter wavelength. Waves with a higher frequency have a longer wavelength. They all move at the same speed. They can travel through space.

Waves with a higher frequency have a shorter wavelength. They all move at the same speed. They can travel through space.

Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vision, these snakes can sense electromagnetic waves that have: a lower frequency and a shorter wavelength. a higher frequency and a longer wavelength. a lower frequency and a longer wavelength. a higher frequency and a shorter wavelength.

a lower frequency and a longer wavelength.

Which of these would most likely cause a sound wave? cookies baking milk standing in the bottle a spoon hitting the side of a bowl while mixing butter melting

a spoon hitting the side of a bowl while mixing

Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? gamma rays visible light infrared light microwaves

gamma rays

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? Check all that apply. radio waves infrared light microwaves gamma rays visible light X-rays

gamma rays X-rays

Sound waves move the most slowly through _________.

gases

Waves move fastest in: low-temperature gases. low-temperature solids. high-temperature gases. high-temperature solids.

high-temperature solids.

A wave will go faster through a liquid at_______temperatures.

higher

The part of the electromagnetic spectrum that has the longest wavelengths is_______.

radio waves

Use the drop-down menus to identify the electromagnetic waves. Label A: Label C: Label D: Label G:

radio waves infrared visible light

Compared to visible light, the wavelength of X-rays is ________and the frequency is_______.

shorter higher

Sound waves are created when something is caused to _________.

vibrate

The part of the electromagnetic spectrum that is necessary for the sense of sight in humans is_______.

visible light