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Conclusion Of Waves

Conclusion Of Waves
What are Waves?
A wave can be defined as the propagation of
periodic disturbances without the transfer of any
material medium.
There are transverse and longitudinal waves
Transverse waves: oscillations move perpendicular to the transfer of energy
Longitudinal waves: oscillations moving parallel to the transfer of energy.
Some apparatus used to study waves:
A ripple tank: used to generate water waves in a science
laboratory
Graphs
There are two types of graphs to describe wave motion:
Displacementtime graph
Displacementposition graph
Wavefront
surface that joins all adjacent points which have the same
phase of vibration on the wave
Phase of Vibration: when they have
completed identical fractions of their periodic motion.
Formulas
T=1/f
f=1/T
v(velocity)= fλ
Waves can be useful to humans:
used to power hydroelectric dams to bring power to many places in the world
Some waves can be harmful to people
such as ultraviolet waves
which can cause skin cancer
Terms used:
Wavelength λ
Period(t) unit: second
Amplitude a
Frequency(f) unit: hertz(Hz)
Velocity(v) formula: velocity= frequency x wavelength
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author vip Study Smarter
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