Sound Wave

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, hard 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

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. 

Tags

NGSS.MS-PS4-1

When a sound is louder what measurement gets bigger?

• Frequency 

• Amplitude 

• Wavelength 

• Crest

Tags

NGSS.MS-PS4-1

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

Tags

NGSS.MS-PS4-1

A reflected sound wave

• frequency

• pitch

• echo

• rarefaction

Tags

NGSS.MS-PS4-2

Which feature of sound is determined by amplitude?

• Pitch

• Smoothness

• Loudness

Tags

NGSS.MS-PS4-1

What is something natural that Sound cannot travel through?

• Water

• Air

• Liquids

• outer Space

Tags

NGSS.MS-PS4-2

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

Tags

NGSS.MS-PS4-1

When the car moves AWAY from you, its horn seems...

• Low pitched

• High pitched

• Normal

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

When an ambulance move TOWARD you it sounds ________ pitched. 

• high

• low

• medium

Tags

NGSS.MS-PS4-1