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WorksheetsRADIO FM AND AM
Total questions: 15
Worksheet time: 8mins
1. Which of the following is the longest wavelength in the electromagnetic spectrum?
Microwaves
Radio waves
X-rays
Gamma Rays
2.Which of the following is the Shortest wavelength in the electromagnetic spectrum?
Microwaves
Radio waves
X-rays
Gamma Rays
3.Different types of waves can be used to transmit information. Which type is the most common in modern communication devices?
Sound
Visible light
Electric current
Electromagnetic radiation
4.Which properties of radio waves make them useful for sending information?
Speed
Amplitude
Frequency
Frequency and amplitude
5.Use the figure, which property is being modulated in wave A?
and it is called ---------
Amplitude (AM modulation)
Speed (AM modulation)
Frequency (FM modulation)
Frequency (AM modulation
6.Use the figure, which property is being modulated in wave B?
and it is called ---------
Amplitude (AM modulation)
Speed (AM modulation)
Frequency (FM modulation)
Frequency (AM modulation
7.What does changing the
frequency do to the speed of
this radio wave?
It increases its speed.
It doesn't affect the speed
It decreases the speed
All the answers above
8.In almost every modern means of communication, waves are used to transmit information. Which statement does not describe a characteristic of waves that makes them well-suited for this purpose?
Waves can move very quickly.
Waves can hold large amounts of information.
Waves only carry useful information.
Waves do not need to permanently move matter.
9.The wider the frequency range that a radio station is given, the more information it can transmit. With their wider frequency ranges, FM radio channels are often used to transmit music, which requires high-quality sound. AM radio channels are often used to transmit talk radio, which has lower-quality sound requirements. How might the sound quality be affected if AM radio waves were used to transmit music?
The music would have a lower-quality sound.
The music would have a higher-quality sound.
The music would sound the same as it would if transmitted using FM radio waves.
The music done have sound
10.what is the frequency for very high frequency?
3000kHz - 30 000MHz
30 000MHz - 300 000MHz
300 000MHz - 30 000GHz
30 000GHz - 300 000GH
11. which of the following could be a use of AM radio waves?
Listening to music
watching movies
Calling for emergencies
12. Which statement describes the waves in the image ?
All these waves have same wavelength.
The purple wave has the highest frequency and shortest wave length.
The red wave has the highest frequency and shortest wave length.
All these waves have same energy.
13.Segment labeled 1 represents?
Wavelength
Amplitude
Crest
Trough
14.Segment labeled 3 represents?
Wavelength
Crest
Amplitude
Trough
15.You can't hear sound in space because
There is no light
There is no energy
There is no medium
There is no one to hear it
