Which statement regarding sound traveling in air is correct?
(1 point)
The frequency of a sound does O not affect the speed at which it travels.
A wave with a shorter wavelength is always faster than one with a longer wavelength.
A loud sound travels faster than a quiet sound.
As the wavelength increases, the frequency also increases.
The frequency of a sound does not affect the speed at which it travels.
Which statement about the effect of temperature on the speed of sound is correct? (1 point)
Changes in temperature have O no effect on the speed of sound.
As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
As temperature increases, the speed of sound decreases because molecules in the medium collide less frequently.
As temperature increases, the speed of sound increases because the medium becomes denser.
As temperature increases, the speed of sound increases because molecules in the medium collide more frequently.
Which forms of electromagnetic radiation are arranged in order of increasing energy?
(1 point)
gamma rays, ultraviolet, microwaves, infrared
microwaves, infrared, ultraviolet, gamma rays
infrared, gamma rays, microwaves, ultraviolet
microwaves, ultraviolet, infrared, gamma rays
microwaves, infrared, ultraviolet, gamma rays
The correct statement regarding sound traveling in air is:
A loud sound travels faster than a quiet sound.
To determine which statement regarding sound traveling in air is correct, let's analyze each option:
Option 1: "The frequency of a sound does not affect the speed at which it travels."
The frequency of a sound refers to the number of cycles per second, measured in hertz (Hz). The speed of sound in air depends on various factors, including temperature, humidity, and composition. However, the frequency of a sound wave does not directly influence its speed. So, this statement is correct.
Option 2: "A wave with a shorter wavelength is always faster than one with a longer wavelength."
The speed of sound in air is constant and does not depend on wavelength. It is important to note that the speed of sound differs in different mediums, such as air, water, or solids. However, within a specific medium like air, the speed of sound remains constant. Therefore, this statement is incorrect.
Option 3: "A loud sound travels faster than a quiet sound."
The loudness of a sound is subjective and refers to the amplitude or intensity of the sound wave. The speed of sound is not affected by how loud or quiet a sound is. Thus, this statement is incorrect.
Option 4: "As the wavelength increases, the frequency also increases."
Wavelength and frequency are inversely proportional to each other. This means that as the wavelength increases, the frequency decreases, and vice versa. Therefore, this statement is incorrect.
In summary, the correct statement regarding sound traveling in air is:
"The frequency of a sound does not affect the speed at which it travels."