Waves
Simple Harmonic Motion
periodic motion - a motion that ________itself again and again along the same path
simple harmonic motion (SHM) - a motion that is periodic, but also can be described by _______________(sines, cosines)
force is _______________
Example Pendulumdisplacement - directed
distance of object from its _______________position
amplitude (A) - ___________displacement from equilibrium
period (T) - period of SHM in ___________
frequency ( f ) - number of ___________per second
Equations of Motion in SHMPeriod of an object oscillating on a spring:
Period of a simple pendulum:
Wave MotionWaves result from a disturbance, the source of the wave
Mechanical waves propagate through a ______________(air, metal, Earth)
__________________________waves do not require a medium
When a medium is disturbed, ___________is imparted to itA regular, rhythmic _______________in both time and space is
called a wave, and the transfer of energy is said to take place by means of ______________________.
If the disturbance originates from a ___________________source, a periodic wave is generated.
Wave MotionWave Characteristics
_________________(A) – Magnitude of maximum displacement from the equilibrium position
Wavelength (λ) – ____________________between two successive crests (or troughs)
Wave speed: or
Types of Waves__________________Waves
Motion of particles is __________________to the velocity
Can only travel through ______________
Longitudinal WavesMotion of particles is _______________to the
velocityCan travel through solids, liquids and
gasses
Wave PropertiesWhen two or more waves encounter each
other in the same medium they are said to _________________
Two types of interference:_____________Interference_____________Interference
Wave PropertiesDestructive InterferenceConstructive Interference