Physics 6.1.5

Question 1

What type of Waves are Sound Waves?

Answer 1

Longitudinal.

Question 2

Sound Waves Travel Fastest in ___. Sound Waves Travel Slowest in ___. Why?

Answer 2

Solids. Gasses. Because the More Molecules that are Present, the Faster the Wave can Transfer Energy.

Question 3

How do Sound Waves Transfer Energy?

Answer 3

They Transfer Energy be the Molecules Vibrating & Knocking into Neighbouring Molecules.

Question 4

When Sound Moves from a Denser Medium to a Less Dense Medium, what happens to the Wavelength, Frequency, & Velocity? (3)

Answer 4

-The Wavelength of the Sound Wave Decreases.

-The Frequency of the Sound Wave stays the Same.

-The Velocity of the Sound Wave also Decreases.

Question 5

When Sound Moves from a Less Dense Medium to a Denser Medium, what happens to the Wavelength, Frequency, & Velocity? (3)

Answer 5

-The Wavelength of the Sound Wave Increases.

-The Frequency of the Sound Waves stays the Same.

-The Velocity of the Sound Wave also Increases.

Question 6

Why is the Speed of Sound Faster on Warm days?

Answer 6

Because Air Molecules Move Faster.