WorksheetsIGCSE Electromagnetic Spectrum Uses and Hazards
Total questions: 30
Worksheet time: 16mins
If the wavelength of an electromagnetic wave is longer, what is true about the energy?
Energy is higher.
Energy is lower.
Energy is not dependent on wavelength.
Radiation from which region of the electromagnetic spectrum can be used to treat cancer?
X-ray
Radio
Infrared
Gamma
Infrared radiation have a shorter wavelength than which waves
Ultraviolet
X-rays
radio
gamma rays
Infra red radiation is used by
MRI scanners
Microwave ovens
Remote Controls
Tanning beds
What is a property of all electromagnetic waves?
They are longitudinal
They are positively charged.
They travel at the speed of sound.
They travel through a vacuum.
Radiation from which region of the electromagnetic spectrum is emitted from some radioactive nuclei
Radio
Gamma
X-Ray
Visible
Select the correct order of waves on the Electromagnetic Spectrum from the longest wavelength to the shortest wavelength
Radio, Microwaves, Infrared, Visible Light, Ultraviolet, X-ray, Gamma
Gamma, X-ray, Ultraviolet, Visible Light, Infrared, Microwaves, Radio
Visible Light, Microwaves, Infrared, Ultraviolet, X-ray, Gamma, Radio
Microwaves, Gamma, Radio, Visible Light, Infrared, Ultraviolet, X-ray
The picture below shows a scan of a nebula. There are two images. One image was created using visible light and the other using infrared light. Notice the two arrows point to two celestial objects in the infrared image. These two celestial objects are believed to be newly developed stars.
Which of the following reason are the two celestial objects visible only in the infrared image?
The infrared image detects brighter objects.
The visible light image detects brighter objects.
The two celestial objects give off more infrared light than visible light.
The two celestial objects give off more visible light than infrared light.
Radiation from which region of the electromagnetic spectrum is used for mobile phone signals?
Microwaves
Gamma
XRays
Radio
Sunblock can be applied to your skin to prevent damage from which electromagnetic waves?
Infrared
Microwaves
Ultraviolet
X Rays
Which colour would you paint a surface to absorb the most infra red radiation?
Black
White
Yellow
To produce this image we need to use:
X-Rays
Gamma rays
Infrared rays
Ultraviolet
Radiation from which two regions of the electromagnetic spectrum can be used in an optical fibre cable?
Visble and Gamma
Visible and microwaves
Visible and infrared
Visible and ultraviolet
93.7MHz is equal to:
937 Hz
93 700 000 Hz
93 700 Hz
0.0937 Hz
TWO uses of Microwaves are:
to heat food
in communication satellites
to transmit a radio signal
in fibre optics
To communicate radio or tv waves over large distances we use:
X-Rays
Gamma Rays
Radio Waves
Infrared Rays
Which of the following are uses for gamma radiation?
- Food preservation
- Sterilise surgical equipment
- Kill cancer cells
1 and 2 only
2 and 3 only
1 and 3 only
1, 2 and 3
Sunglasses can be used to prevent eye damage from which region of the EM spectrum?
Ultraviolet
Visible
X-ray
Infra red
MRI scanners make use of which region of the EM spectrum?
Visible
Radio
Xray
Gamma
Accelerating electrons in an antenna generate radiation in which two regions of the EM spectrum?
Radio
Infrared
Microwave
Visible
Infrared radiation is emitted by all objects. Which emits the most radiation
Hot object painted black
Cold object painted black
Hot object painted white
Radiation form which regions of the electromagnetic spectrum are emitted from (excited electrons in atoms)?
Visible, UV and Gamma
Visible, Radio and Microwave
Visible, UV
Visible and microwave
Uses of UV radiation include
Security markings on bank notes
Washing powders
Sterilisation of equipment
Optical fibres
Remote controls
Which is. a hazard of overexposure to certain frequencies of microwave radiation
Heating of cells
Skin Cancer
Snow blindness
Select two precautions taken when you have an Xray.
Limited exposure time
Wearing of sunglasses
Wearing of a lead apron
Wearing of sunblock
