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WorksheetsEM Waves
Total questions: 18
Worksheet time: 9mins
Which electromagnetic wave can you see?
Gamma ray
Microwave ray
Visible light
X-ray
Which one of these images is an X - Ray?
This image is created using what type of electromagnetic wave?
Infrared
Ultraviolet
X-ray
Microwave
This type of EM radiation is used to send mobile phone signals & in GPS?
infrared
visible light
ultraviolet
microwaves
What type of EM radiation is used in military night vision goggles?
radio wave
microwave
infrared
light
What type of EM radiation plays an important role in wireless communication?
ultraviolet
visible light
infrared
microwave
What type of EM radiation is utilized in treating cancer, using its high energy to destroy the cells in a tumour?
gamma ray
x-ray
visible light
microwave
What are X - Rays used for?
Scanning luggage during security checks.
Checking for broken bones.
Checking to see if your shoelaces are untied.
Sterilising hospital equipment.
How much of the electromagnetic spectrum is made up of visible light?
only a small portion
a very large portion
about half
Which of the following best explains why ultraviolet rays can cause sunburn but visible light from a light bulb does not damage skin?
Ultraviolet rays come before the light rays in the electromagnetic spectrum, which means anything before visible light automatically causes cancer.
Ultraviolet rays have lower frequencies than visible light rays and thus have higher energy than light rays from a light bulb.
Ultraviolet rays have higher frequency than visible light rays and thus have more energy than light rays from a light bulb.
Ultraviolet rays have higher frequencies than visible light rays and thus have less energy than light rays from a light bulb.
Light from the Sun transfers solar energy to the Earth system. Sunlight travels to Earth as _______ waves.
electromagnetic
seismic
sound
water
Which of the images best describes the reflection of light?
Scientists use electromagnetic waves to detect supernovas in space. Why are electromagnetic waves used instead of sound waves?
Electromagnetic waves can travel in vacuums.
Electromagnetic waves cannot be absorbed.
Electromagnetic waves travel slower than sound waves.
Electromagnetic waves are created by physical vibrations.
Which statement best explains the difference between light waves traveling through a vacuum and light waves traveling through a medium?
Light waves traveling through a vacuum are transverse, but light waves traveling through a medium are longitudinal.
Light waves traveling through a vacuum travel faster than light waves traveling through a medium.
Light waves traveling through a vacuum have no mass, but light waves traveling through a medium have a mass greater than zero.
Light waves traveling through a vacuum have a shorter wavelength than light waves traveling through a medium.
