What Aspect of Sound Waves Does the Student Observe

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

Tags

NGSS.HS-PS4-1

travels through solids fastest because the molecules are closer together

• speed of sound
• wavelength
• frequency
• amplitude

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

Tags

NGSS.HS-PS4-1

How high or low a sound is; depends on the frequency (greater frequency= higher pitch)

• pitch
• frequency
• sound
• medium

Tags

NGSS.HS-PS4-1

A disturbance that transfers energy from one place to another without transferring energy

• wave
• trough
• pitch
• sound

Tags

NGSS.MS-PS4-1

A reflected sound wave

• frequency
• pitch
• echo
• rarefaction

Tags

NGSS.MS-PS4-2

You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?

• sound waves reflecting off smooth, flat surfaces throughout the house
• sound waves moving around the large rooms
• sound waves moving slowly through air
• sound waves refracting around corners in the empty rooms

Tags

NGSS.MS-PS4-2

As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's

• concussion. 
• amplitude. 
• reflection.
• frequency. 

Tags

NGSS.HS-PS4-1

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

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

Tags

NGSS.HS-PS4-1