Properties of Sound ม5

What makes sound happen?

• Waves
• Vibrations
• Frequency
• Amplitude

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is the highness and lowness of sound?

• Vibration
• Pitch
• Frequency
• Wavelength

Tags

NGSS.MS-PS4-1

If the wavelength of a sound wave is increased, what would happen to the sound made by this wave?

• It would have a lower pitch

• It would get quieter

• It would get louder

• It would have a higher pitch

When a compression interferes with another compression, what occurs?

• They counteract and the wave stops.

• They combine to create a larger compression.

• They combine to create a rarefaction.

• None of the above.

Tags

NGSS.MS-PS4-1

What creates the Doppler Effect?

• A sound source moving relative to the observer.

• A wavelength change due to the medium's speed.

• A consistent frequency that creates the same pitch.

• A variation in amplitude due to a change in temperature.

What creates a higher pitch sound in a recorder?

• blowing harder

• blowing softer

• covering all the holes

• uncovering all the holes

"These produce sound through the vibration of the air inside the instrument tube". This is a definition of...

• String instruments

• Electronic instruments

• Wind instruments

• Percussion

How does the air vibrate in a brass instrument?

• blowing into the instrument
• the keys will make the air vibrate
• your lips must vibrate as you blow
• the reed vibrates as you blow

Sound moves in a _________.

• Transverse wave
• Longitudinal wave

Another word for intensity is ________, and it is measured in ___________

• Frequency, decibels

• Amplitude, hertz

• Amplitude, decibels

• Frequency, hertz