PPT 1 and 2 Quiz Review

Question 1

Study of sound

Answer 1

acoustics

Question 2

study of airflow

Answer 2

aerodynamics

Question 3

study of motion

Answer 3

physiology and kinematics

Question 4

forces that cause movement

Answer 4

dynamics

Question 5

relationship between physical properties of sound and perception

Answer 5

psychoacoustics

Question 6

list the two important parts of sound generation

Answer 6

sound source, and sound medium

Question 7

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

Answer 7

true

Question 8

amount of matter something has

Answer 8

mass

Question 9

list the three fundamental physical quantities

Answer 9

mass, length, time

Question 10

list the four derived physical quanities

Answer 10

displacement, velocity/ speed, acceleration, pressure

Question 11

a change in position accounts for both distance and direction

Answer 11

displacement

Question 12

only consider magnitude

Answer 12

scalar quantities

Question 13

include magnitude and direction

Answer 13

vector quantities

Question 14

t/f velocity is a scalar quantity

Answer 14

false

Question 15

amount of displacement per unit time

Answer 15

velocity

Question 16

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

Answer 16

true

Question 17

change in velocity over time

Answer 17

acceleration

Question 18

force per unit area

Answer 18

pressure

Question 19

when would density increase

Answer 19

when mass increases or volume decreases

Question 20

when would density decrease

Answer 20

when mass decreases and volume increases

Question 21

the restoring force in vibration

Answer 21

elasticity

Question 22

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

Answer 22

false

Question 23

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

Answer 23

Newton’s first law

Question 24

t/f inertia is directly proportional to mass

Answer 24

true

Question 25

the capacity to do work

Answer 25

energy

Question 26

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

Answer 26

Newton's second law of motion

Question 27

for every action there's an equal and opposite reaction

Answer 27

Newton's third law of motion

Question 28

what is the reaction force to inertia in vibration

Answer 28

elasticity

Question 29

occurs after vibration at source

Answer 29

sound wave propagation

Question 30

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

Answer 30

equidistant