Ch. 12 Waves pgs. 436 - 468.

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Ch. 12 Waves pgs. 436 - 468

The Simple Pendulum Consists of a mass called a bob attached to a fixed string. For small angles, the pendulum’s motion is simple harmonic

Amplitude – maximum displacement from equilibrium (rad, m) Period (T) – the time it takes for one complete cycle (s) Frequency (f) – the number of cycles or vibrations per unit of time. (cycles/s, 1/s, Hz, s-1)

Period and frequency measure time. Are inversely proportional Ex. How many seconds are in 12 Hz?

The period of a simple pendulum depends on pendulum length and free-fall acceleration.

What is the length of a pendulum that has a period of 12 seconds?

Period of a mass-spring system depends on mass and spring constant.

A 125 N object vibrates with a frequency of 0 A 125 N object vibrates with a frequency of 0.28 Hz when hanging from a spring. What is the spring constant?