PPT 1 and 2 Quiz Review Flashcards
Study of sound
acoustics
study of airflow
aerodynamics
study of motion
physiology and kinematics
forces that cause movement
dynamics
relationship between physical properties of sound and perception
psychoacoustics
list the two important parts of sound generation
sound source, and sound medium
t/f both source and medium must have mass and elasticity
true
amount of matter something has
mass
list the three fundamental physical quantities
mass, length, time
list the four derived physical quanities
displacement, velocity/ speed, acceleration, pressure
a change in position accounts for both distance and direction
displacement
only consider magnitude
scalar quantities
include magnitude and direction
vector quantities
t/f velocity is a scalar quantity
false
amount of displacement per unit time
velocity
t/f speed is a scalar quantity but velocity is a vector quantity
true
change in velocity over time
acceleration
force per unit area
pressure
when would density increase
when mass increases or volume decreases
when would density decrease
when mass decreases and volume increases
the restoring force in vibration
elasticity
t/f momentum isn’t directly proportional to mass and velocity
false
all bodies in motion remain in motion unless acted upon by an unbalanced force
Newton’s first law
t/f inertia is directly proportional to mass
true
the capacity to do work
energy
when a net force acts on an object accelerates in the same direction as the force
Newton’s second law of motion
for every action there’s an equal and opposite reaction
Newton’s third law of motion
what is the reaction force to inertia in vibration
elasticity
occurs after vibration at source
sound wave propagation
before force is applied, particles of medium are ___ from each other
equidistant
