PPT 1 and 2 Quiz Review Flashcards

1
Q

Study of sound

A

acoustics

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2
Q

study of airflow

A

aerodynamics

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3
Q

study of motion

A

physiology and kinematics

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4
Q

forces that cause movement

A

dynamics

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5
Q

relationship between physical properties of sound and perception

A

psychoacoustics

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6
Q

list the two important parts of sound generation

A

sound source, and sound medium

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7
Q

t/f both source and medium must have mass and elasticity

A

true

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8
Q

amount of matter something has

A

mass

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9
Q

list the three fundamental physical quantities

A

mass, length, time

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10
Q

list the four derived physical quanities

A

displacement, velocity/ speed, acceleration, pressure

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11
Q

a change in position accounts for both distance and direction

A

displacement

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12
Q

only consider magnitude

A

scalar quantities

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13
Q

include magnitude and direction

A

vector quantities

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14
Q

t/f velocity is a scalar quantity

A

false

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15
Q

amount of displacement per unit time

A

velocity

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16
Q

t/f speed is a scalar quantity but velocity is a vector quantity

17
Q

change in velocity over time

A

acceleration

18
Q

force per unit area

19
Q

when would density increase

A

when mass increases or volume decreases

20
Q

when would density decrease

A

when mass decreases and volume increases

21
Q

the restoring force in vibration

A

elasticity

22
Q

t/f momentum isn’t directly proportional to mass and velocity

23
Q

all bodies in motion remain in motion unless acted upon by an unbalanced force

A

Newton’s first law

24
Q

t/f inertia is directly proportional to mass

25
Q

the capacity to do work

26
Q

when a net force acts on an object accelerates in the same direction as the force

A

Newton’s second law of motion

27
Q

for every action there’s an equal and opposite reaction

A

Newton’s third law of motion

28
Q

what is the reaction force to inertia in vibration

A

elasticity

29
Q

occurs after vibration at source

A

sound wave propagation

30
Q

before force is applied, particles of medium are ___ from each other

A

equidistant