Physics Chapter 12 Sound

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

Material (matter) through which a wave travels

• medium
• Doppler Effect
• sound
• pitch

When the sound source moves, the frequency changes
ex. police car siren sounding lower pitch after the car passes

• pitch
• frequency
• Doppler Effect
• medium

What does pitch depend on?

• amplitude 
• frequency
• intensity 
• volume of sound

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. 

Which of the following does sound depend on?

• type of medium
• distance to the medium
• height of the medium
• vibration of the medium

Sound Waves Move faster in what temperature 

• Heat 
• Cold
• Doesn't Matter
• Both

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. 

Which of the following would you hear as a low pitched sound? 

• sound wave with a frequency of 50 Hz
• sound wave with frequency of 10,000 Hz
• sound wave with an intensity of 10 dB
• sound wave with an intensity of 100 dB