Question

. What is one reason sound travels faster in water than in air

Answer 1

water molecules are closer to each other than air particles (because it is a liquid)

Answer 2

thanks

Answer 3

The wavelength of a longitudinal wave is the distance from (1 point)
• compression to rarefaction.
• compression to compression.
• crest to crest.

Answer 4

compression to compression

Answer 5

thanks

Answer 6

. Three light rays encounter a medium. How can light ray B be described? (1 point)
• It is reflected.
• It is transmitted.
• It is refracted.

Answer 7

. The image above shows the movement of a wave over three seconds. What is the frequency of the wave? (1 point)
• 2 Hz
• 1 Hz
• 3 Hz

Answer 8

What is true about X-rays and microwaves? (1 point)
• X-rays have greater amplitude than microwaves.
• X-rays have greater frequency than microwaves.
• X-rays have greater wavelength than microwaves.