Topic 1/Topic 2 Flashcards
What two types of wave are there?
Traverse and longitudinal
How are Traverse waves formed?
When the particles vibrate in a perpendicular direction to the direction the wave energy is travelling in
Examples of Transverse waves
E-M waves, Water waves and wave on a rope
How are Longitudinal waves formed?
They are formed when the particles vibrate in a direction parallel to the direction of the wave energy motion.
Examples of Longitudinal waves
Sound & Ultrasound
What do sound waves require?
Particles
What do sound waves travel fastest and slowest in?
Fastest in solids and slowest in gases and can’t travel through a vacuum
What are the major components of the human ear structure?
Pinna, stirrup Anvil and Hammer, ear drum, Auditory nerve, Cochlea and the semicircular canals
Functions of all the major components in the ear
Pinna-collects sound waves
Stirrup, Anvil and Hammer-transmits vibrations caused by sound waves
Ear drum-collects sound waves and channels them into the ear canal
Auditory canal-transfers auditory information from the cochlea
Cochlea-transform the vibrations of the cochlear liquids
Semicircular canals-they help you keep your balance
How to calculate the speed given the time taken and distance travelled
Speed=distance/Time
How to find the Time given distance and speed
Time = Distance / Speed
How to find the distance given speed and time
Distance = Speed X Time
What is a wavelength?
Length of a wave
What is the Amplitude?
Height of a wave
What is the compression?
A region in a longitudinal wave
