The data displays the velocity of sound in air, sea water, and steel at a temperature of 21°C.
Material Speed
Air 331
Sea water 1,524
Steel 5,180
How does the velocity of sound in sea water compare to that in air? (1 point)
The velocity of sound is reduced in sea water because the molecules in sea water are more closely packed and less dense.
The velocity of sound is greater in sea water due to the closer proximity and lower density of molecules in sea water.
The velocity of sound is reduced in sea water because the molecules in sea water are more closely arranged and denser.
The velocity of sound is greater in sea water because the molecules in sea water are more closely packed and denser.
The velocity of sound is greater in sea water because the molecules in sea water are more closely packed and denser.
A student generates a transverse wave using a rope secured to a tree, as depicted in the illustration. Her teacher instructs her to modify the wave to exhibit a higher energy transfer. What options does the student have? (1 point)
She has the option to lower the frequency of the wave.
She has the option to increase the frequency of the wave.
She can extend the wavelength of the wave.
She has the choice to reduce the amplitude of the wave.
She has the option to increase the frequency of the wave.
The illustration depicts a transverse wave. Josie sketches an additional diagram illustrating the impact of adding energy to this wave. How does her latest diagram differ from this one? (1 point)
In her diagram, reduced wave amplitudes are illustrated.
In her diagram, elevated wave amplitudes are illustrated.
In her diagram, longer wavelengths are depicted.
In her diagram, diminished wave frequencies are depicted.
In her diagram, elevated wave amplitudes are illustrated.
Leo constructs a model featuring two waves with identical amplitudes, as depicted. Which description MOST effectively contrasts the two waves? (1 point)
Wave A has a lower energy level because it has a higher frequency and a shorter wavelength.
Wave B possesses lower energy because it has a lower frequency and a longer wavelength.
Wave A possesses higher energy due to its lower frequency and longer wavelength.
Wave B possesses higher energy because it has a higher frequency and a shorter wavelength.
Wave B possesses higher energy because it has a higher frequency and a shorter wavelength.
Aila is constructing a model of a biconvex lens. She illustrates horizontal lines to represent light rays moving towards the lens. How should Aila depict the light rays after they pass through the lens? (1 point)
Aila should illustrate them converging toward a focal point.
Aila should illustrate them diffracting and moving in an upward direction.
Aila should depict them continuing in the same direction.
Aila should depict them diverging without intersecting.