simple harmonic motion Flashcards
how does the displacement an oscillating object in one cycle
It decreases as it returns to equilibrium
reverses and increases as it moves away from equilibrium in opposite direction
decreases as it returns to equilibrium
increases as it moves away from equilibrium towards it starting position
what is the amplitude of the oscillations of an object in simple harmonic motion
the maximum displacement of the oscillating object from equilibrium
what are the conditions for oscillations to be described as free vibrations
when amplitude is constant and no frictional forces are present
what is time period of an oscillating object
the time T for once complete cycle of oscillation
what is the frequency of an oscillating object
the number of cycles per second made by an oscillating object
what is simple harmonic motion
oscilliating motion in which acceleration is proptional to displacement and always in the opposite direction to the displacement
what is the mass on a spring simple harmonic motion
when the mass is pushed or pulled either side of the equilibrium position, there’s a restoring force exerted on it
when is the acceleration greatest for a velocity time graph
when the gradient of the velocity time graph is greatest
this is when velocity is zero
occurs at maximum displacement in opposite direction
when is the velocity maximum and the displacement zero
when the acceleration is zero and the gradient of the velocity time graph is zero
describe the acceleration of simple harmonic motion
the acceleration is always in the opposite direction to the displacement
define simple harmonic motion
oscillating motion in which the acceleration is proportional to the displacement and always in the opposite direction to the displacement
how do you reduce the frequency of oscillation in a mass spring system
by adding extra mass
by using weaker springs
why does adding extra mass decrease frequency of oscillation in a mass spring system
the extra mass increases the inertia of the system
why does using weaker springs reduce frequency of oscillation in a mass spring system
the restoring force at any given displacement is less
how can oscillating motion of a trolley attached to a mass spring system be measured
using a motion sensor linked to a computer
