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30 Cards in this Set
- Front
- Back
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What is the equation for Hooke's Law involving for finding the force that will try and put the spring back to equilibrium?
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This is F=-KX
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What does the negative in Hooke's Law represent?
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This represents the direction of the force
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In SHM, is the period dependent on amplitude?
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The period is independent of amplitude!!!!!!
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What is the equation for potential energy in a spring?
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This is given in the equation, PE=1/2k(x^2)
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In SHM, is friction ignored and if this is ignored, relating the potential energy and kinetic energy what is the result?
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Kinetic Energy of the block = Potential Energy of block
1/2mv^2 = 1/2kx^2 |
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How is the speed of a block calculated in SHM
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V= A*(K/m)^1/2
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What is the definition of the period?
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This simply the amount of time for one cycle
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What is the definition of the frequency
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Number of cycles per second
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Show how frequency and period are used together?
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Period= 1/f
Frequency = 1/T |
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Show how frequency and period have a relationship with speed of oscillations?
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Longer period means that, slower oscillations
Lower frequency, slower the oscillations |
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What are the units for T and f
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f=Hertz
T is in seconds |
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Does mass effect the pendullum in SHM
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No, the length of the string is what effects the pendulum
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What is the restoring force, force to get back to equilibrium in the oscillators and what is the equation?
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This is the force provided by gravity, this force is Frestoring =mgsin(theta)-----theta is angle between the equilibrium
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What is the frequency and period equation for the pendulum?
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f= 1/2pi *square root (g/l)
2pi* square root (l/g) |
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What is the frequency and period equation for the block mass?
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f =1/2pi* square root (k/m)
T = 2pi * square root (m/k) |
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When in a transverse wave, the wave travels in what type of direction to the medium vibrating?
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perpendicular to the direction in which the medium is vibrating
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When in a longitudinal wave, the wave travels?
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Parallel to the wave motion
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What two things determine wave speed?
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The medium and wave type ,.....NOT FREQUENCY
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Which doesn't determine wave speed, Frequency, Wave Type, Medium.
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FREQUENCY!!!!
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WHAT IS THE EQUATION FOR WAVESPEED!!!!!!!
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v=wavelength * frequency
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As a wave moves from one medium to another what will change?
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The speed of wave and wavelength...
NOT THE FREQUENCY!!!! |
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What ultimately determines amplitude?
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The amount of energy put into the wave in the beginning
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The distance between two nodes equals what?
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This will always be half a wavelength
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What is the equation to find the wavelength of a standing wave when not given the fundemantal wave
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Wavelength = 2L/n
n= Nodes-1 |
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If given the fundemental wave, what is the eqaution to find the wavelength?
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Wavelength = fundmental/n
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What is the equation for fundemneal frequency for a standing wave?
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f= n/2L *v
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Knowing the fundemental frequency how can you find the frequency of any standing wave?
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f=n*fn
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As a wave moves to a different medium what remains constant and what changes
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Speed changes and FREQUENCY WILL REMAIN CONSTANT
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The equation wavelength = n/4L, what is the n represent. (This is when one end is opened)
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n represents the harmonic number.
Harmonic number= nodes-1 |
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What is equal to the time interval between pressure compressions?
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The period of the wave
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