Physics- Sound Flashcards
(15 cards)
What is the sound hearing capability of humans?
20Hz-20,000Hz
What is a traducer give examples
A traduces converts sound waves into electrical signals. e.g- Microphone
How are sound waves made?
By vibrating objects. Sound waves are created by vibrating that compress and expand air, creating sound waves that go through our ears.
What is the speed of sound?
330m/s
What does sound travel fastest and slowest in?
Fastest in solids, slowest in gases
What is a transverse wave?
In a transverse wave, vibrations go up and down. The particles vibrate perpendicular to the motion of the wave.
What is a longitudinal wave?
In a longitudinal wave, vibrations travel side to side or back n forth. Particles vibrate parallel to the wave.
What is an echo?
Reflection of sound
What is reverbation?
When sound wave reflect all surfaces, and the echo lasts for a few seconds making the sound muddy.
What is sound?
sound is a type of kinetic energy that travels through a medium. It is made when something vibrates.
What is a sound wave?
An invisible vibration that can travel trough any medium carrying sound.
What is SONAR, how and where is it used?
SONAR- Sound,Navigation,And,Ranging.
It is used to navigate underwater and measure the depth of water
What is the formula for SONAR?
Distnace= sxt divided by 2
What is echolocation?
Echolocation is finding the distance if an object using sonar.
How does our ear detect sounds?
The outer ear gathers the sound wave and directs it down to the auditory canal and then to the ear drum. Here the ear drum vibrates making the ossicles(smallest bones in our boday) vibrate. The membranes and bones of the middle ear transfer the vibration of a sound wave from your outer to inner ear. Your inner ear converts the sound wave into an electrical signal that goes to your brain.
