Waves-Paper 2 Flashcards
What are waves
Waves transfer energy from one place to another without transferring any matter
Transverse waves examples include
Water Ripples, electromagnetic waves, S-seismic waves
Longitudinal waves examples include
Sound waves, P-seismic wavesWha
What is the wavelength of a wave
The distance from a point on the wave to the same point on the next wave
What is the amplitude of a wave
The maximum disturbance of a point on the wave from the undisturbed position
What is the frequency of a wave
The number of waves passing a point each second
What is refraction
When waves change direction as they enter or leave a material
How are radio waves produced
By oscillations in electrical currents
How are radio waves detected
Same frequency as a AC
What is P waves
Longitudinal waves
Travel at different speeds in solids and liquids
What is S waves
Transverse
Cannot travel through liquids
What is echo sounding
A method using high frequency sound waves to detect objects in deep water to measure water depth
What is the best emitter of radiation
Black body
What is a black body
An object that absorbs all radiation
How are transverse and longitudinal waves different
Transverse waves: Oscillations are perpendicular to energy transfer
Longitudinal waves: Oscillations are parallel to the direction of energy transfer
