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WorksheetsElectromagnetic Waves
Total questions: 15
Worksheet time: 8mins
All electromagnetic waves have the same __________.
frequency
speed
wavelength
energy
Which of the following electromagnetic waves have the longest wavelength?
gamma rays
x-rays
infrared rays
radio waves
Which waves are the type that can give us suntans and sunburns?
Infrared radiation
Ultraviolet radiation
Radio waves
X-rays
In visible light, which color has the shortest wavelength?
Red
Violet
Yellow
Green
Cancer can be treated with __________.
Radio waves
Infrared rays
Gamma rays
X-rays
Electromagnetic waves, unlike mechanical waves, require a medium to travel.
True
False
The blue label of the wave refers to _________________.
wavelength
crest
trough
amplitude
It is the only type of electromagnetic wave that can be detected by the human eye.
Gamma rays
Infrared rays
Radio waves
Visible Light
Electromagnetic waves travel at what speed?
30,000,000 m/s
3x10^9 m/s
30x10^6 m/s
300x10^6 m/s
What would happen to the wavelength of an electromagnetic wave if its frequency increases?
decreases
increases
remains the same
becomes unpredictable
What would happen to the frequency of an electromagnetic wave if its wavelength increases?
decreases
increases
remains the same
becomes unpredictable
Which of the following is NOT a trend of the electromagnetic spectrum when moving to the right?
wavelength decreases
wavelength increases
frequency increases
energy increases
A certain wave takes 0.00002 seconds to complete one cycle. Calculate its frequency.
20 Hz
50 Hz
20,000 Hz
50,000 Hz
What is the frequency of a radio wave having a wavelength of 20x10^3 m?
0.00000006 Hz
0.00006 Hz
15,000 Hz
15,000,000 Hz
What is the wavelength of a 300 kHz wave?
0.000001 m
0.001 m
1,000 m
1,000,000 m
