Waves Flashcards
Electromagnetic, X-ray and Water waves are examples of what type of wave?
Transverse
In a transverse wave the direction of particle movement and the direction of travel are what?
Perpendicular
In a longitudinal wave the Direction of particle movement and the direction of travel are what?
The same
Mechanical waves require what?
Particle movement
Electromagnetic waves require what?
Disturbances in the electromagnetic field
What feature do electro-magnetic waves have?
Can travel in a vacuum, due to them not needing particles to travel.
What do all waves carry?
Energy and Information
Give the unit for amplitude?
A
What are the units for wavelength?
Lambda
What is they symbol and units for time period?
T, seconds (s)
What is they symbol and units for frequency?
F, hertz (Hz)
What is the symbol and units for wave velocity?
V, (m/s)
Frequency =?
1/T
Wave velocity =?
Frequency * Wavelength
What is a CRO?
Cathode Ray Oscilliscope
In a CRO grid the square height is know as?
Y gain- show how many volts per square
In a CRO grid the square width is know as?
Timebase - show how many seconds each square is worth
What is the speed of sound in air?
330m/s
The bigger the amplitude of a wave?
The louder the sound
The longer the wave?
The lower the pitch
The smaller the wave?
The quieter the sound
The Shorter the wave?
The higher the pitch
