3. Pitch and Loudness

After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram above? 

• The distance represented by C would increase. 
• The distance represented by C would decrease. 
• The distance represented by D would increase. 
• The distance represented by D would decrease. 

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

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

Tags

NGSS.MS-PS4-1

What property of this wave is represented by the letter "A"

• amplitude

• crest

• trough

• wavelength

Tags

NGSS.HS-PS4-1

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.HS-PS4-1

What would happen if you tighten the strings on a guitar?

• it would make a low pitch sound
• it would make a high pitch sound
• it produces a slow vibrations
• it produces low frequency

Tags

NGSS.MS-PS4-1

Which wavelength has the higher frequency? 

• Top Wavelength
• Bottom Wavelength
• Both 

A note is played on a guitar.  Next, a lower note is played on the guitar.  Which of these statements describes the lower note?

• Both notes vibrated at the same speed.
• The second note vibrated slower.
• The second note vibrates at a higher frequency.
• The second note vibrated faster.

Tags

NGSS.HS-PS4-1

Which wave in the diagram has the greatest frequency?

• 1
• 2
• 3
• 4

Tags

CCSS.8.EE.B.5

What are the spaced out sections of this wave called?

• Reflections
• Rarefactions
• Compressions
• Wavelengths

Tags

NGSS.HS-PS4-1

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest

Tags

NGSS.MS-PS4-1