What is true for ALL of the examples of electromagnetic waves?

They all move at the same speed in a vacuum.

They all have the same wavelength.

They all have the same frequency.

A remote control only works when it is pointed at the television. What is the best explanation for this?

The remote control transmits information through waves, such as infrared waves, to the television.

The remote control has a weak signal and will only work over short distances.

The remote control transmits information at the speed of light to the television.

The remote control transmits information that is encoded and the television decodes it.

In each of these situations light refracts, except for one. Identify the case in which light is NOT refracted.

a magnifying glass enlarges an image

a fish is seen at the bottom of a stream

Although you can see the pencil, it appears broken in the glass of water. This is because

electromagnetic waves travel at different speeds through different media.

electromagnetic waves cannot travel through solids.

electromagnetic waves compress more when they travel through denser media.

electromagnetic waves get closer together when they go through dense media like glass.

You see lightning before you hear thunder because

light waves travel faster than sound waves in air.

light waves can travel through a vacuum.

sound waves cannot travel through the air.

sound waves travel faster than light waves in air..

The speed of sound waves through two different media, steel and air, was recorded. According to the graph, sound waves travel

faster through steel than through air.

through steel, but not through air.

faster through air than through steel.

through steel and air at similar speeds.

are not electromagnetic radiation

Do not travel in straight lines from the source

Maria and Sarah made a set of paper cup telephones. First the girls punched a hole in the bottom of each cup. Then they connected the cups with a very long piece of string, knotted in the bottom of each cup. Maria went down the hall to her bedroom while Sarah stayed in the kitchen. When Maria put the cup to her ear she could hear Sarah talking to her because.

sound waves traveled through the string to Maria’s cup.

they were not that far from each other.

sound waves traveled through the air from room to room.

sound waves bounced off of the walls to reach Maria in the bedroom.

Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio waves are transmitted to Earth from satellites. How is this possible?

Radio waves are electromagnetic waves.

Satellites are located within our atmosphere.

Radio waves are very high energy mechanical waves.

Radio waves are changed to gamma rays for transmission.

Which pair of properties apply to both sound and electromagnetic waves?

Both waves carry energy and refract.

Both waves are longitudinal and carry energy.

Both waves are transverse and matter from one place to another.

Both waves carry energy and do not need a medium to travel through.

In the visible spectrum, the color of light depends on the frequency. Which statement BEST describes the wavelengths of a certain frequency?

A low frequency wave has a long wavelength.

A low frequency wave has a short wavelength.

A high frequency wave has a wavelength that is not measurable.

A high frequency wave and a low frequency wave have the same wavelengths.

Based on your knowledge of the electromagnetic spectrum, why are radio waves considered harmless while ultraviolet waves and x-rays considered harmful?

Radio waves have longer wavelengths, lower frequency, and lower energy than ultraviolet waves and x-rays.

Lower energy and higher frequency ultraviolet waves and x-rays is enough to break bonds and damage cells.

High frequency and energy of radio waves mean that they penetrate much farther through matter than uv or x-rays.

The energy of the lower frequency ultraviolet waves and x-rays is high enough to be considered ionizing radiation.

The graph indicates what about the relationship between wavelength and frequency?

as wavelength decreases, frequency increases

as wavelength decreases, frequency decreases

as wavelength increases, frequency increases

there is no relationship between wavelength and frequency

Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.

The wavelengths get shorter but there is no change in amplitude.

The wavelengths get longer and there is an increase in amplitude.

The wavelengths get longer and there is an decrease in amplitude.

The wavelengths get shorter and there is an increase in amplitude.

The pattern of this wave changes between its beginning and end. What is true about the amplitude and wavelength of the wave when the pattern changes?

The amplitude of the wave decreases while the wavelength increases.

Both the amplitude and wavelength of the wave increase.

Both the amplitude and wavelength of the wave decrease.

The amplitude of the wave increases while the wavelength decreases.

Waves Review Game (EE)

Authored by Jennifer Welborn

Social Studies

8th - 9th Grade

Used 4+ times

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35 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The distance from point A to point B is known as the

wave height

wavelength

amplitude

volume

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If we compare and contrast electromagnetic waves with sound waves, all BUT one statement is true. That is

sound waves require a medium to travel while electromagnetic waves do not.

electromagnetic waves can travel through the vacuum of space while sound waves cannot.

electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere.

sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the electromagnetic spectrum, Gamma rays have the shortest wavelength. Therefore, Gamma rays have ______________ frequency.

a random

the lowest

the highest

an undetermined

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of wave is classified as electromagnetic?

sound

light

water

seismic

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Energy is inversely proportional to the wavelength of a wave. Which would have the GREATEST energy? A wave with a wavelength of ______ meters.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. UV radiation is called ultraviolet because it has a frequency which is higher than violet radiation (purple light). Therefore, it has a wavelength which is ___________ violet radiation.

bigger than

smaller than

the same size as

the square root of

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

People working in nuclear plants wear special monitoring devices to track their exposure to radiation. Radioactive materials used in plants emit particles but they also emit high energy waves that are potentially lethal to human life. These waves are ______ waves.

beta

gamma

infrared

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Waves Review Game (EE)

The distance from point A to point B is known as the

If we compare and contrast electromagnetic waves with sound waves, all BUT one statement is true. That is

According to the electromagnetic spectrum, Gamma rays have the shortest wavelength. Therefore, Gamma rays have ______________ frequency.

Which type of wave is classified as electromagnetic?

Energy is inversely proportional to the wavelength of a wave. Which would have the GREATEST energy? A wave with a wavelength of ______ meters.

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. UV radiation is called ultraviolet because it has a frequency which is higher than violet radiation (purple light). Therefore, it has a wavelength which is ___________ violet radiation.

People working in nuclear plants wear special monitoring devices to track their exposure to radiation. Radioactive materials used in plants emit particles but they also emit high energy waves that are potentially lethal to human life. These waves are ______ waves.

What is true for ALL of the examples of electromagnetic waves?

Wireless Internet is a way to send and receive Internet data over relatively short distances with low-power transmitters. What type of waves are transmitted for wifi?

By 1949 Americans who lived within the range of a television stations in the country could watch TV, vastly changing the way that humans communicated with each other. What type of electromagnetic wave made TV technology possible?

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