Question
Question 1 A)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 Neither the speed nor the wavelength of the sound change. Neither the speed nor 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. Both the speed and the wavelength of the sound change. Both the speed and the wavelength of the sound change. Both the frequency and the wavelength of the sound change. Both the frequency and the wavelength of the sound change. Question 2 A) The table shows the speed of sound in different mediums. 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 air, water, glass, steel air, water, glass, steel air, steel, glass, water air, steel, glass, water steel, glass, water, air steel, glass, water, air glass, steel, air, water glass, steel, air, water Question 3 A)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 remains the same after the transfer. The speed of the wave remains the same after the transfer. 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 becomes four times 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 becomes double its original speed after the transfer. The speed of the wave becomes double its original speed after the transfer. Question 4 A) The table shows the speed of sound in different mediums. 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? (1 point) Responses air to steel air to steel water to glass water to glass steel to water steel to water air to glass air to glass Question 5 A) The table shows the speed of ultrasound waves in different tissues in the human body. 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 blood to fat blood to fat fat to liver fat to liver liver to muscle liver to muscle muscle to kidney muscle to kidney
Answers
GPT-4o mini
Let's address each question one by one:
**Question 1 A)** When sound waves travel from one medium to another, their speed changes, which can affect the wavelength of the sound, but the frequency remains constant. Therefore, the correct response is:
- **Both the speed and the wavelength of the sound change.**
**Question 2 A)** The wavelength of a sound wave is inversely related to its speed for a constant frequency (wavelength = speed/frequency). Since the speed of sound is highest in steel and lowest in air, the order from shortest wavelength (highest speed) to longest wavelength (lowest speed) is:
- **steel, glass, water, air.**
However, from the options given:
- **steel, glass, water, air.**
**Question 3 A)** When a wave transitions to a medium where its wavelength becomes one-fourth of its original wavelength, the speed of the wave must also change according to the relationship \( v = f \lambda \) (speed = frequency × wavelength). Since the frequency remains constant, if the wavelength reduces to one-fourth, the speed must increase fourfold. Hence, the correct response is:
- **The speed of the wave becomes four times its original speed after the transfer.**
**Question 4 A)** To determine which transition results in a shortening of wavelength, we look for a transition to a medium where the sound speed increases. The only transition among the options that results in increased speed (therefore shorter wavelength) is:
- **air to steel.**
**Question 5 A)** To find the transition that results in the largest change in wavelength, we observe the speed differences. The transition with the greatest difference in speed will yield the largest change in wavelength, computed through \( \Delta \lambda \) proportional to \( \Delta v \). The highest difference is between **blood (1,570 m/s)** and **fat (1,450 m/s)**. However, focusing on transitions, the one yielding the largest change is:
- **blood to fat.**
So, to summarize:
1. Both the speed and the wavelength of the sound change.
2. steel, glass, water, air.
3. The speed of the wave becomes four times its original speed after the transfer.
4. air to steel.
5. blood to fat.
**Question 1 A)** When sound waves travel from one medium to another, their speed changes, which can affect the wavelength of the sound, but the frequency remains constant. Therefore, the correct response is:
- **Both the speed and the wavelength of the sound change.**
**Question 2 A)** The wavelength of a sound wave is inversely related to its speed for a constant frequency (wavelength = speed/frequency). Since the speed of sound is highest in steel and lowest in air, the order from shortest wavelength (highest speed) to longest wavelength (lowest speed) is:
- **steel, glass, water, air.**
However, from the options given:
- **steel, glass, water, air.**
**Question 3 A)** When a wave transitions to a medium where its wavelength becomes one-fourth of its original wavelength, the speed of the wave must also change according to the relationship \( v = f \lambda \) (speed = frequency × wavelength). Since the frequency remains constant, if the wavelength reduces to one-fourth, the speed must increase fourfold. Hence, the correct response is:
- **The speed of the wave becomes four times its original speed after the transfer.**
**Question 4 A)** To determine which transition results in a shortening of wavelength, we look for a transition to a medium where the sound speed increases. The only transition among the options that results in increased speed (therefore shorter wavelength) is:
- **air to steel.**
**Question 5 A)** To find the transition that results in the largest change in wavelength, we observe the speed differences. The transition with the greatest difference in speed will yield the largest change in wavelength, computed through \( \Delta \lambda \) proportional to \( \Delta v \). The highest difference is between **blood (1,570 m/s)** and **fat (1,450 m/s)**. However, focusing on transitions, the one yielding the largest change is:
- **blood to fat.**
So, to summarize:
1. Both the speed and the wavelength of the sound change.
2. steel, glass, water, air.
3. The speed of the wave becomes four times its original speed after the transfer.
4. air to steel.
5. blood to fat.