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Waves By: Krishna Ramesh #519 (Mechanical Waves (Properties (Frequency,…
Waves
By: Krishna Ramesh #519
Mechanical Waves
What?
a disturbance in matter that carries energy
Types
Longitudinal Waves
What?
a wave where the medium is parallel
to direction it travels
Surface Waves
What?
a wave that travels along a surface
Separates 2 media
Transverse Waves
What?
a wave that makes the medium to vibrate
In direction of the wave
Properties
Frequency
What?
number of complete cycles
= frequency of vibration source making the wave
Length
What?
distance between point on wave and same point in next cycle
if frequency increases, length decreases
Speed
What?
is wavelength X Frequency
in m/s
Amplitude
What?
maximum displacement of medium from rest position
The more energy in the wave
the more the amplitude
Electromagnetic Waves
What?
are waves that are transverse
have changing electric fields
have changing magnetic fields
How are they different from Mechanical Waves?
Produced
made when an electric charge vibrates
Travel
can travel through a vacuum of space
also through matter
Do not need medium
unlike mechanical waves
