The sound of a plucked guitar string travels through the air and strikes the eardrum of a person in the same room. How does the sound wave change when it transfers from the air to the person’s eardrum?(1 point)
Responses
Both the frequency and the wavelength of the sound change.
Both the frequency and the wavelength of the sound change.
Neither the frequency nor the wavelength of the sound change.
Neither the frequency nor the wavelength of the sound change.
Neither the speed nor the wavelength of the sound change.
Neither the speed nor the wavelength of the sound change.
Both the speed and the wavelength of the sound change.
Neither the speed nor the wavelength of the sound change.
Medium
Speed of
Sound (m/s)
Air
343
Glass
5,640
Steel
5,940
Water
1,433
The table shows the speed of sound in various media. Which list orders the media from shortest wavelength to longest wavelength for sound waves that pass through them?
(1 point)
Responses
glass, steel, air, water
glass, steel, air, water
steel, glass, water, air
air, steel, glass, water
air, steel, glass, water
air, water, glass, steel
glass, steel, air, water
Two different types of rope with different properties are fused together to make one long rope. When a wave transfers from the first type of rope to the second type of rope, the wavelength becomes one-fourth of what it was before the transfer. What is true about the speed of the wave?(1 point)
Responses
The speed of the wave becomes one-fourth its original speed after the transfer.
The speed of the wave becomes one-fourth its original speed after the transfer.
The speed of the wave remains the same after the transfer.
The speed of the wave remains the same after the transfer.
The speed of the wave becomes double its original speed after the transfer.
The speed of the wave becomes double its original speed after the transfer.
The speed of the wave becomes four times its original speed after the transfer.
The speed of the wave remains the same after the transfer.
The table shows the speed of sound in various media.
Medium
Speed of
Sound (m/s)
Air
343
Glass
5,640
Steel
5,940
Water
1,433
If a sound wave transitions from one medium to another, which transition would result in a shortening of the wavelength of the sound wave?
water to glass
water to glass
air to steel
air to steel
steel to water
steel to water
air to glass
air to steel
The table shows the speed of ultrasound waves in different tissues in the human body.
Tissue
Speed (m/s)
Air
330
Fat
1,450
Water
1,480
Liver
1,550
Kidney
1,560
Blood
1,570
Muscle
1,580
Bone
4,080
If an ultrasound wave moves from one tissue to another tissue in the body, which of the following transitions will result in the largest change in the wavelength of the ultrasound wave?
(1 point)
Responses
liver to muscle
liver to muscle
fat to liver
fat to liver
muscle to kidney
muscle to kidney
blood to fat