Sound characteristic

Sound- Wave characteristic

LO : I can revise characterisitic of sound : intensity, volume,

amplitude, pitch, frequency.

Type of wave

sound waves,
and vibration in spring

●ripples on the surface of water

●vibrations in a guitar string.

Multiple Choice

Sound waves travel as ________ waves.

• Transverse

• Longitudinal

• Surface

Multiple Choice

A high amplitude sound means _____ sound, and a low amplitude sound means _____ sound.

• softer, louder

• louder, softer

• louder, louder

• softer, softer

Multiple Choice

Sound is made when a source of energy forces the matter around it to __________.

• Vibrate

• Amplitude

• Stay still

• Pitch

Multiple Choice

Sound is a form of energy. How is it produced?

• by waiting

• by vibrating objects

Sound wave

There are some characteristic of sound waves :

Sound has both volume and pitch.
Volume is seen as an increase in amplitude of the sound wave.
Intensity: The loudness of a sound

High volume : High intensity

Small Volume : Low intensity.

- The loudness of a sound is measure using SOUND INTENSITY
MATER. Unit : decibels ( db )

When presenting sound in a form of wave:

The amplitudes of a wave is how far the particles move as the
vibrations pass.

- Larger amplitudes = Louder of the sound = high volume

- Smaller amplitudes = Smaller of the sound = low volume

-Pitch : how high or low a sound

is.
- The frequency of a sound wave is the

number of complete waves pass a point each second.

- Unit of frequency is hertz ( hz ).

High frequency sounds = high pitch.

- A bell that vibrates 400 times per

second has a frequency of 400 Hz.

Multiple Choice

What is changed in the second picture?

• Someone is talking louder in picture 2
• Someone is talking softer in picture 2
• Someone is talking lower pitch in picture 2
• Someone is talking higher pitch in picture 2

Multiple Choice

It is the highness or lowness of sound or a musical note.

• Timbre

• Loudness

• Pitch

In an instrument, shorter bar vibrate faster make high pitch sound

Longer bar vibrate slower make low pitch sound.

https://ophysics.com/w6.html

Multiple Choice

It determines the s loudness or volume of a sound wave.

• frequency

• amplitude

Multiple Choice

The term for how high or low a sound is:

• pitch
• volume
• sound
• medium

Multiple Choice

It is the unit used for frequency.

• Hertz (Hz)

• decibel (dB)

Intensity of different sound.

Multiple Choice

A _____ frequency sound has a higher pitch. A lower frequency sound has a _____ pitch.

• higher, higher

• lower, higher

• higher, lower

• lower, lower

Multiple Choice

The unit of intensity level for sound _____.

• Hertz (Hz)

• decibel (dB)

Multiple Choice

Which wave produced the loudest sound?

• high Amplitude

• low Amplitude

Multiple Choice

Which wavelength would have the highest pitch like a flute or whistle?

• High Frequency Wavelength
• Low frequency Wavelength

Multiple Choice

High frequency = _______ Pitch

• High
• Low

Multiple Choice

Low frequency = _______ Pitch

• Low
• High

Multiple Choice

Low Amplitude = ______________

• Quieter Sounds
• Louder sounds

Multiple Choice

High Amplitude =__________________

• Louder sounds
• Quieter Sounds

Multiple Choice

High frequency sounds have _______ pitch

• HIgh

• Low

Multiple Choice

Sound waves CANNOT travel through which of these:

• Paper

• Milk

• Outer space

Multiple Choice

Which wavelength would have the highest pitch like a flute or whistle?

• High Frequency Wavelength
• Low frequency Wavelength

Multiple Choice

The highness or lowness of a sound is its ____________.

• pitch

• volume

• amplitude

• frequency

Multiple Choice

What is changed in the second picture?

• Someone is talking louder in picture 2
• Someone is talking softer in picture 2
• Someone is talking lower pitch in picture 2
• Someone is talking higher pitch in picture 2

Multiple Choice

What is something natural that Sound cannot travel through?

• Water
• Air
• Liquids
• outer Space

Multiple Choice

If the distance represented by the letter A (the amplitude) were increased, how would it change the sound?

• The sound would be higher. 
• The sound would be lower. 
• The sound would be softer. 
• The sound would be louder. 

Multiple Choice

Which feature of sound is determined by amplitude?

• Pitch
• Smoothness
• Loudness

Medium for sound transmission

Multiple Choice

In General Sound waves travel the slowest in __________

• solid
• liquid
• Gas
• Plasma

Multiple Choice

Do sound waves travel through a medium?

• YES

• NO

Multiple Choice

In General Sound waves travel the fastest in __________

• solid
• liquid
• Gas
• plasma