WorksheetsElectromagnetic Spectrum
Total questions: 31
Worksheet time: 25mins
Which color has the longest wavelength?
Yellow
Red
Green
Purple
The frequency of an x-ray is --
1.41 x 10-10 Hz
1.41 x 1018 Hz
1.41 x 1010 Hz
1.41 x 10-18 Hz
Which EM waves have the longest wavelength?
radio
x-rays
ultraviolet
gamma rays
Which EM waves have the shortest wavelength?
radio
x-rays
ultraviolet
gamma rays
Which EM waves are invisible? (more than one correct answer)
radio
visible
ultraviolet
gamma rays
Which EM waves are have the highest energy & are the most dangerous?
radio
gamma rays
infrared
x-rays
What happens to frequency when wavelength decreases?
stays the same
decreases
increases
There is no relationship between wavelength & frequency.
What do electromagnetic waves NOT need to transfer energy?
matter
speed
wavelength
frequency
A wave has a frequency of 10 hz and a wavelength of 4 m. What is the velocity of the wave?
24 m/s
40 m/s
2.5 m/s
The visible light that we can see travels in waves. Blue light has a wavelength of 450 nm and orange light has a wavelength of 600 nm. Based on this information, what is true about the energies of blue and orange light?
Energy of blue light will be higher than that of orange light.
Energy of blue light will be lower than that of orange light.
Energy of blue light and orange light will be the same.
Wavelengths of light and energy of light are independent of each other.
Which electromagnetic waves are used by doctors to detect broken bones inside your body?
X-Rays
Gamma Rays
Ultraviolet Rays
Infrared Rays
As the wavelength of an electromagnetic wave gets LONGER, the frequency gets ____________.
Lower
Higher
does not change
doubles
Which type of electromagnetic wave travels fastest through a vacuum?
radio
gamma rays
visible light
They all travel at the same speed.
The diagram shows a person observing a thunderstorm located several kilometers away. The person hears the thunder several seconds after seeing the lightning. Which statement accurately explains the difference in observations of sound and light by the observer?
Human eyes see light faster than their ears can hear sound.
The medium the waves are traveling through is different for each type of wave.
Light waves travel faster than sound waves.
Sound waves travel faster than light waves.
A Polarizing filter is used to reduce glare on reflective surfaces including glass, windows, and water.
True
False
Approximately how much light is blocked by a single polarizing filter?
0%
50%
75%
100%
The production of light with a specific pattern of oscillation.
reflection
polarization
refraction
diffraction
Approximately how much light is blocked by two polarizing filters that are perpendicular to each other?
0%
50%
75%
100%
Why is light from a lamp or candle frame nonpolarized?
The electrons are vibrating in one direction
The electrons are vibrating in random directions
The electrons are not moving
They emit polarized light
What is the difference between light that is polarized and light that is not?
polarized light vibrates along multiple planes; unpolarized light vibrates along a single plane
there is no difference
polarized light vibrates along a single plane; unpolarized light vibrates along multiple planes
Which of the following types of wave cannot be plane polarised?
light
microwaves
ultrasound
ultraviolet
which of the following does NOT belong in the electromagnetic spectrum:
X-ray
sound wave
ultra violet rays
microwaves
The entire range of the electromagnetic wave frequencies is known as _______.
ultraviolet radiation
visible light
the electromagnetic spectrum
magnetism
