Speech And Hearing Quiz 2

Front 1

An object moving with such

motion is called an

Back 1

oscillator

Front 2

 The source of sound is the blank of an object around its equilibrium and it’s called the what

Back 2

The back and forth motion and it is called an oscillation or

vibration.

Front 3

An object moving with such

motion is called an

Back 3

oscillator

Front 4

What is used to introduce the concepts associated with this back-and-forth motion.

Back 4

Pendulum

Front 5

Describe pendulum

Back 5

Bob suspended from

a fixed point on a thin arm

(string) that may swing

freely back and forth

Front 6

What keeps the pendulum moving back and forth

Back 6

Inertia and gravity

Front 7

What stops the pendulum

Back 7

Friction

Front 8

The oscillation made by a pendulum is a what

Back 8

Sine function

Front 9

Periodic motion

Back 9

Repeats itself in regular intervals until it is stopped

Front 10

What kind of motion is the pendulum

Back 10

Harmonic

Front 11

If a single object, such as a pendulum, is moving in harmonic motion, then changes in displacement, velocity, and acceleration are sinusoidal functions of time. What is this motion called

Back 11

Simple harmonic motion

Front 12

function representing changes of any physical quantity as a function of time is called a

Back 12

Waveform

Front 13

On a wave form what do the x and y axis represent

Back 13

X- time , y is magnitude of a quantity

Front 14

What is a cycle

Back 14

one full repetition of a periodic motion.

Front 15

The frequency of a waveform is the

Back 15

Number of cycles per second

Front 16

What is period

Back 16

The time required for a completion of one cycle

Front 17

The equilibrium position of an object in simple

harmonic motion is defined as a

Back 17

O phase

Front 18

The equilibrium position of an object in simple

harmonic motion is defined as a

Back 18

O phase

Front 19

One full rotation of the radius around the circle (0° to

360°) results in

Back 19

one complete cycle of a sine wave.

Front 20

maximum positive magnitude of the sine wave

corresponds to a

Back 20

Phase of 90

Front 21

maximum negative magnitude of the sine wave

corresponds to a phase of

Back 21

270

Front 22

When the magnitude is zero, the phase angle could be

Back 22

0°, 180°, or 360°

Front 23

If two waveforms have the same frequency but the phase is

not the same, they are said to be

Back 23

Out of phase

Front 24

When two waveforms have the same frequency and the same phase, their phase relationship is described as being

Back 24

In phase

Front 25

maximum magnitude is called the

Back 25

Amplitude

Front 26

The range of magnitude changes within one period is called

Back 26

peak-to-peak magnitude

Front 27

The average magnitude (Aavr)for simple harmonic motion

is always

Back 27

0

Front 28

If the spring is stretched or

compressed, it creates a

Back 28

Force of elasticity

Front 29

large mass will

have a

Back 29

Lower resonance frequency than a small mass

Front 30

A stiff spring will

have a

Back 30

Higher resonance frequency than a less stiff spring

Front 31

The resonance frequency is determined by

Back 31

Mass, stiffness, and friction

Front 32

The resonance frequency

Back 32

also the frequency at

which the system will vibrate with its greatest

magnitude.

Front 33

The frequency of free vibration is called the

resonance frequency of the system.

 Also called the natural frequency of a system.

Back 33

It is the frequency at which the system will

“naturally” vibrate back and forth when left alone

to vibrate.

Front 34

there is no continuous exchange of energy between a

vibrating system and the surrounding environment, this

form of vibration is called

Back 34

Free vibration

Front 35

Factor affecting the motion of vibrating systems

Back 35

Elasticity (or gravity) and Inertia

 Resonance and Free Vibration

 Friction and Damped Vibration

 Forced Vibration

Front 36

The behavior of the mass-and-spring system is described by

Hooke’s Law of Elasticity.

Back 36

a spring is extended, the force of elasticity works

against the extension.

 If the spring is compressed, the force of elasticity works

against the compression.

Front 37

The mass will vibrate back and forth in a simple harmonic

motion because of the interaction between:

Back 37

Elasticity and inertia

Front 38

Examples of harmonic mention

Back 38

Tunning fork, air particles, pendulum