Phyics Flashcards
A soundwave is a
Longitudinal wave
Sound waves are produced by
Vibrating objects
Sound waves cannot travel in
A vacuum
The speed of the sound wave depends on
The air temperature
Resonance occurs when
An object is forced to vibrate at its natural frequency
In which of the following does sound travel the fastest
Ice
The time needed for a wave to make one complete cycle is its
Velocity
When two or more waves are at the same place the same time the resulting effect is called
Interference
Where can you touch a standing wave on a rope without disturbing the wave
At a node
The Doppler affect is the change in observed frequency due to
The motion of the source or observer
Sound wave with a frequency too high to hear is what type soundwave
Ultra sonic
What is the difference between a transverse and a longitudinal wave?
Longitudinal waves the medium moves parallel to the motion of waves and transverse the medium moves perpendicular to motion of wave
What is the audible range of frequencies for a human with good hearing
20hz-20000hz
What is the unit for sound intensity
Decibels
A sound that is just barely though not to be hurt is said to be at the
Threshold of hearing
