Sound and Ultra sound Flashcards
All waves are classed as …
longitudinal or transverse
what is the wave in which sound uses?
longitudinal
what are longitudinal waves?
when the vibrations are along the same direction as the direction of travel.
what are transverse waves?
are waves which are at right angles to the direction of travel.
what do s waves belong to?
transverse waves
what do p waves belong to?
longitudinal
how are sound waves produced?
by vibrations and can be heard because our ears respond to them and our brain makes sense of the sound.
What does this definition mean? The number of complete waves passing a point in one second is known as …
frequency
what is frequency measured in?
hertz (Hz)
what effects the speed of sound?
the material it is travelling in
how fast is the speed in air?
330m/s
what is 5x faster than the air ?
water
How does sound travel?
forms of waves which transfer energy from one place to another.