1. Ch. 12
Waves
pgs

2. 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

3. 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)

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

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

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

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

8. 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?