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WorksheetsOndes électromagnétiques in english
Total questions: 14
Worksheet time: 15mins
Vocabulaire pour les questions (à noter avant de commencer puis cocher quand c'est OK) :
wave : onde
wavelength : longueur d'onde
to increase : augmenter
vacuum : vide
What happens to wavelength as the frequency of a wave increases?
increase
stays the same
decreases
becomes faster
What electromagnetic wave has the longest wavelengths and lowest frequencies?
Microwaves
Ultraviolet Rays
Infrared Waves
Radio Waves
What type of electromagnetic wave has the shortest wavelength and the highest frequencie ?
Gamma Rays
Ultraviolet Rays
Radio Waves
X Rays
The human eye is only capable of seeing which electromagnetic wave?
Infrared Light
Ultraviolet Light
Visible Light
All of the above
What electromagnetic wave do humans emit as heat energy?
infrared light
ultraviolet light
visible light
microwaves
Which of the following is correct in order from lowest to highest energy?
X Rays, Visible Light, Microwave
Ultraviolet, Visible Light, Gamma-Rays
Microwave, Visible Light, Gamma Rays
Radio waves, visible light, and x rays are examples of electromagnetic waves that always differ from each other in
amplitude
intensity
temperature
wavelength
A communications satellite transmits a radio wave at a frequency of 5.0 x 109 Hz. What is the signal’s wavelength? Assume the wave travels in a vacuum.
(5.0 x 10^9 Hz) x (3.0 x 10^8 m/s)
(5.0 x 10^9 Hz) / (3.0 x 10^8 m/s)
(3.0 x 10^8 m/s) / (5.0 x 10^9 Hz)
(5.0 x 10^9 Hz) + (3.0 x 10^8 m/s)
Which is an example of a radio wave ?
television
heat lamp
vision
sun light
How are electromagnetic waves (EM) different from mechanical waves ?
EM waves have very short wavelengths
EM waves transmit energy instead of matter
EM waves can travel through the vacuum of space
EM waves can change direction by reflection
The _______________ determines the color of visible light.
wavelength (and frequency)
speed
amplitude
particles of the medium
All electromagnetic waves are...
transverse waves and have the same frequency
transverse waves and have the same speed
mechanical waves and have the same wavelength
longitudinal waves and have the same energy
Which color has the longest wavelength?
Yellow
Red
Green
Purple
