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