Science test revision Flashcards
State the name of two types of waves
transverse, longitudinal
Examples of transverse waves are:
Water, electromagnet waves, s-waves
Examples of longitudinal waves are:
sound, ultrasound, p-waves
State the direction of vibration and the direction of energy transfer for a transverse wave
Direction of vibration is perpendicular to direction of energy transfer.
Displacement of wave from rest position to crest or trough
Amplitude
Number of complete waves passing a point per second
Frequency
The length of one complete wave cycle
Wavelength
Units of frequency and wavelength
Hertz and Metres
State the equation that links velocity frequency and wavelength
Velocity = frequency x wavelength
State the equation to determine period or frequency
period = 1/frequency
State the equation that links wave speed, distance and time
Speed = distance/time
State 4 behaviours waves exhibit when crossing a boundary
Absorbed, transmitted, reflected and refracted.
When energy is absorbed by a material it is most likely transferred into which energy store?
Thermal
Wave behaviour is dependant on?
Wavelength and the medium it is passing through.
A wave hitting a boundary at an angle bends, it changes speed causing a change in direction.
refraction
What name is given to the imaginary line that is perpendicular to where the wave hits the boundary?
The normal
Waves that are shorter bend more, true or false?
True
What piece of equipment is used to measure the speed of a wave in water?
Ripple Tank
