12.2 Measuring Simple Harmonic Motion




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- The Amplitude "A" is the maximum displaccement from the equilibrium position.

- The period "T" of an object executing siimple harmonic motion is the time for the object to complete one cycle , or revolution.

- Period is measured in seconds/oscillatioon but is commonly read as just seconds.

- Frequency "f " measures the number of revolutions/second which is known as hertz (Hz).

f = 1/T


- The period (T) of a simple pendulum doess not depend on the mass of the bob, it depends on the length of the pendulum and the acceleration of gravity at that point.

T = 2π(l/g)1/2


-The period (T) of a spring's motion depennds on the mass of the object and the stiffness of the spring.

T = 2π(m/k)1/2



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