# Shared Flashcard Set

## Details

Test 6
Chapter 14 notes
38
Physics
10/28/2015

Term
 all repeat in a regular cycle (ex. clock pendulum)
Definition
 periodic motion
Term
 the force that restores the object to equilibrium is directly proportional to the displacement of the object
Definition
 simple harmonic motion
Term
 time needed for an object to repeat one complete cycle of motion
Definition
 period (T)
Term
 consists of a massive object (the bob) suspended by a string
Definition
 pendulum
Term
 when small forces are applied at regular intervals to a vibrating or oscillating object and the amplitude of the vibration increases (soldiers marching in sync, etc;)
Definition
 resonance
Term
 disturbance that carries energy through matter or space
Definition
 wave
Term
 What requires a medium in order to travel (sound, water, etc;)
Definition
 mechanical waves
Term
 single bump or disturbance that travels through a medium
Definition
 wave pulse
Term
 vibrates perpendicular to the direction of the wave's motion
Definition
 transverse wave
Term
 disturbance is in the same direction as or parallel to the direction of the wave's motion (ex. sound waves)
Definition
 longitudal wave
Term
 What have properties of both transverse and longitudal waves?
Definition
 surface waves
Term
 low point on a wave
Definition
 trough
Term
 high point of a wave
Definition
 crest
Term
 What is the symbol for wavelength?
Definition
 lambda
Term
 shortest distance between points where wave patters repeat itself
Definition
 wavelength
Term
 number of complete oscillations a wave makes each second (units are Hertz)
Definition
 frequency
Term
 What determines the amount of energy a mechanical wave carries?
Definition
 amplitude
Term
 Only what can determine a mechanical wave's speed?
Definition
 medium
Term
 wave that strikes the boundary
Definition
 incident wave
Term
 returning wave
Definition
 reflected wave
Term
 What happens when a wave crosses a boundary between two media?
Definition
 it's partially transmitted and partially reflected
Term
 What occurs when two or more waves move through a medium at the same time?
Definition
 interference
Term
 displacement of a medium caused by two or more waves is the algebraic sum of the displacements caused by the individual waves
Definition
 principle of superposition
Term
 the result of superposition of two or more waves
Definition
 interference
Term
 caused by superposition of waves with equal but opposite amplitudes
Definition
 destructive interference
Term
 occurs when wave displacements are in the same direction
Definition
 constructive interference
Term
 What is the result of constructive interference?
Definition
 a wave that has an amplitude greater than those of any individual waves
Term
 where two equal waves pulses meet and these do not move at all
Definition
 node
Term
 occurs in constructive interference when the two waves meet and form a point with the largest displacement
Definition
 antinode
Term
 interference of two traveling waves moving in opposite directions
Definition
 standing wave
Term
 In a standing wave, where are the nodes?
Definition
 at the end of the rope
Term
 In a standing wave, where are the antinodes?
Definition
 in the middle
Term
 line drawn at a right angle to the crest of the wave
Definition
 ray
Term
 line drawn at a right angle (perpendicular) to the barrier
Definition
 normal
Term
 angle between incident ray and normal
Definition
 angle of incidence
Term
 angle between normal and the reflected ray
Definition
 angle of reflection
Term
 angle of incidence equals angle of reflection
Definition
 law of reflection
Term
 the maximum distance that the object moves from equilibrium
Definition
 amplitude
Supporting users have an ad free experience!