Waves Sound

What type of energy does a sound wave have?

• Mechanical

• Radiant

• Electrical

• Sound

Tags

NGSS.MS-PS4-1

Sound is produced by -----

• Heat energy

• Low temperatures

• Vibrations

• Friction

True or False: Sound waves are faster than light.

• False

• True

The number of wavelengths that pass a fixed point each second is known as ----

• Hertz

• Amplitude

• Frequency

The unit for measuring frequency is the ---

• Joule

• Hertz

• Gram

• Newton

The speed of sound depends on these two things:

• The type of medium and the temperature of the medium

• Speed of the medium and temperature of the medium

• Temperature of the medium and sound of the medium

• None of the above

Sound waves that are beyond the range of human ear are known as ----

• Infrasonic waves

• Ultrasonic waves

Tags

NGSS.MS-PS4-1

Sonar and echolocation use ----- to detect objects under water.

• Refraction

• Reflection

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, 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