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Electromagnetic Spectrum
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Q.1
The color blue has more energy than the color red.
True
False
Q.2
Which of the following lists the electromagnetic waves in order of increasing wavelength?
X-rays, visible light, radio waves
gamma rays, microwaves, UV rays
infrared rays, radio waves, x-rays
Q.3
Which color of light has the longest wavelength?
orange
red
blue
green
Q.4
What electromagnetic wave has the longest wavelengths and lowest frequencies?
Microwaves
Ultraviolet Rays
Infrared Waves
Radio Waves
Q.5
Newton’s prism experiments showed that white sunlight is made up of
the full electromagnetic spectrum.
only blue light.
all the colors of the visible spectrum.
only the longest wavelengths.
Q.6
Which electromagnetic waves help doctors detect broken bones inside your body?
gamma rays
x-rays
ultraviolet rays
Q.7
A wave with a large wavelength will have a ______ frequency and _____ energy
high, low
high, high
low, high
low, low
Q.8
Which of the following sets of EM radiation can harm your body cells?
Gamma ray, microwaves, infrared
Light, ultraviolet, x-ray
Microwaves, ultraviolet, infrared
Ultraviolet, x-ray, gamma ray
Q.9
This type of EM wave can cause skin cancer.
microwaves
ultraviolet ray
radio
infrared
Q.10
How are electromagnetic waves different from other waves?
They have very short wavelengths
They transmit energy instead of matter
They can travel through empty space
They can change direction by reflection
Q.11
What is the wavelength for a quantum of light with energy of 7.56x10-19J? (λ=hc/E)
2.62x10-7m
2.62x107m
2.64x10-45m
2.64x1045m
Q.12
What happens to the energy of a photon as the frequency of the wave increases?
The energy increases
The energy decreases
The energy stays the same
Q.13
Select the correct order of waves on the EMS
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
Q.14
Radar uses which type of electromagnetic waves to detect objects & measure their distance and speed?
microwaves
infrared rays
x-rays
Q.15
For waves in any medium, as the wavelength decreases, what happens to the frequency?
It also decrease
It stays the same
It increases
Q.16
How much of the electromagnetic spectrum is made up of visible light?
only a small portion
a very l;arge portion
about half
Q.17
Which electromagnetic waves allow us to diagnose & treat cancer?
Gamma rays
X-rays
Ultraviolet rays
Q.18
Which of the following lists the electromagnetic waves in order of decreasing frequency?
X-rays, microwaves, infrared rays
UV rays, visible light, x-rays
infrared rays, microwaves, radio waves
Q.19
The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of:
increasing amplitutde
increasing wavelength
increasing frequency
Q.20
Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?
ultraviolet rays
microwaves
infrared rays
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