physics mock Flashcards
what do you call a force that is the same size but are opposite directions?
interaction pair
the compression in the weightlifter’s muscles is caused by..
the weight pushing down
what determines the pitch of a sound wave?
the amplitude
what is the name given to reflected sound waves?
echos
The most diffraction happens when the wavelength of the sound wave is——————————-the size of the insect.
equal to
The bat emits a sound wave with a frequency of 25.0 kHz and a wavelength of
0.0136 metres.
Calculate the speed of this sound wave.
340 m/s
what is meant by a longitudinal wave?
a wave that moves in the direction of the particle vibrations
what is meant by transverse waves?
a wave that moves up and down motion of the (example) the rope’s perpendicular direction of the wave
how could you determine the frequency other than the equation? what experiment could you do
the ripple tank experiment* then count how many waves pass through each minute
what is the top of the wave called?
the trough or crest
what is the bottom of a wave ?
trough
