Sound Waves

Question 1

sound is a type of…

Answer 1

longitudinal wave

Question 2

Sound travels…

Answer 2

faster in solids than liquids (when a sound wave travels through solid it does so by causing the particles to vibrate)

Question 3

Sound waves can’t travel in…

Answer 3

space, because it’s most a vacuum (there are no particles to move or vibrate)

Question 4

How can you hear sound?

Answer 4

1) sound waves are collected by the ear lobe and travel along the ear canal and make the ear drum vibrate
2) ossicles amplify the vibrations
3) the cochlea turns these into electrical signals and auditory nerve takes the signal to the brain

Question 5

how are sound waves reflected?

Answer 5

By hard flat surfaces (echoes)

Question 6

Sound waves will also…

Answer 6

refract as they enter different media
as they enter denser material, they speed up bc when a wave travels in a different medium , it’s wavelength changes but it’s frequency remains the same so it’s speed must also change