WorksheetsTransverse waves and the EMS
Total questions: 25
Worksheet time: 13mins
Oscillations in transverse waves are ____________ to the direction of energy transfer.
parallel
perpendicular
randomly
Side to side
Examples of transverse waves are ____________ waves.
sound, microwave, and light
microwave, light and UV
radio, sound, and water
light, sound, and gamma
EMS waves transfer energy as __________ from the source of the waves to an absorber.
ripples
currents
radiation
compressions
EMS waves can travel through a _________ such as in space.
liquid
vacuum
gas
solid
EMS waves travel at _____________ through a vacuum.
the same speed
different speeds
a higher speed as the wavelength increases
a lower speed as the wavelength increases
What speed do EMS waves travel through a vacuum?
3 m/s
3 000 m/s
30 000 m/s
300 000 000 m/s
Electromagnetic waves form a continuous of ________ waves.
series
cluster
pathway
spectrum
EMS waves with a very short wavelength, high frequency have __________ energy
high
low
medium
no
EMS waves with a very long wavelength, low frequency have ________ energy
high
low
medium
no
Red light has the ____________ frequencies of visible light
highest
lowest
second lowest
second highest
violet light has the ___________ frequencies of visible light
highest
lowest
second highest
second lowest
Radio waves do not cause damage if absorbed by the human body.
True
False
The internal energy of the molecules increases when they absorb microwaves, which causes ___________.
cancer
heating.
freezing
corrosion
What is infrared radiation (IR) is used for?
cookers, heaters, and radios
cookers, heaters, and cameras
cameras, remotes, and radios
cancer treatment and sterilising equipment
Ultraviolet light ______________ on the human body.
has only beneficial effects
has no effect
can have hazardous effects
Ultraviolet, X-rays and gamma rays are types of _____________.
long wave radiation
ionising radiation
low frequency waves
low energy waves
Which EMS waves can cause skin to age prematurely and increase the risk of skin cancer?
Microwaves
X-rays
Visible
Ultra-violet
Which EMS waves cause the mutation of genes, which can lead to cancer?
Ultra-violet and X-rays
X-rays and gamma
Microwaves and gamma
Radio and gamma
Exposure to ionising radiation is measured in in what units?
millisieverts (mSv)
seconds (ms)
millimetres (mm)
millihertz (mHz)
What is the annual radiation dose limit for a worker?
2 mSv
20 mSv
200 mSv
2 000 mSv
Background radiation sources include:
Cosmic rays, meteorites, and radioactive rocks in the Earth's core.
nuclear weapons, nuclear power plants, and research accidents.
radioactive rocks, cosmic rays, nuclear weapons and accidents.
The yearly limit for the radiation dose to the whole body of a worker is 20 mSv. Give this value in Sv.
0.02 Sv
0.2 Sv
2.0 Sv
20.0 Sv
Which of the following is NOT a transverse wave?
Gamma
Ultra-violet
Ultra sound
Visible light
Which wave has the lowest amplitude?
1
2
3
2 and 3
Which seismic wave is an example of a transverse wave?
P-waves
S-waves
Water waves
Ultrasound
