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To vibrate, a source must have 2 sounds, they are?
Mass and Elasticity

A medium must have two properties, they are?
Mass and elasticity

Sound needs...
A source to generate, and environment to travel, an applied force

T/F. Weight has gravity, mass doesnt.
True

One cycle is..
Equilibrium> max disp. one way>equilibrium>max disp. another way>equilibrium

T/F Inertia and mass are directly proportional
True. One goes up other goes up

Particles move about positions of equilibrium because of two opposing forces, they are?
Inertia and elasticity

Three Fundamental Physical Quantities are?
Length, mass and time

Vector quantity has....
Both magnitude and direction

Scalar quantity has...
only magnitude

T/F. Velocity can change without acceleration.
FALSE. It cannot.

T/F. Compliance and stiffness are indirectly proportional.
True.

Sustained vibratory motionhas two opposing forces, they are?
Inertia and gravity

KE is transformed to thermal energy because of..
Friction

Speed of sound for air?
About 330 m/s

T/F. A sine wave has more than one frequency.
False. It only has one

Five dimensions of the sine wave?
Amplitude, Frequency, Period, Phase, Wavelength

Total Impedance has 2 components, they are?
 Resistance (R) friction, use up energy
 Reactance (X) storage of energy

The Watt is..
Energy transferred per unit time

To convert from bels to decibels multiply by...
10

For every 10 fold chance in Ix, dB changes by?
10 dB

For every 2 fold change in Ix, dB changes by?
3dB

