Periodic Motion Flashcards
1
Q
Hooke’s law
A
F = -kx
2
Q
PE of spring vs pendulum
A
spring: PE = 1/2 kx^2
pendulum: PE = mgh
3
Q
Period, Frequency, wavelength, and velocity
Speed of sound through air
A
T = 1/f
V = lambda f
v = 340 m/s
4
Q
Factors that influence period
A
Directly proportional to mass and length
- inverse to stiffness
5
Q
What does harmonic correspond to?
A
N = antinodes
6
Q
What is the wavelength of harmonic?
A
Lambda = 2L / n
7
Q
What do closed and open ends correspond to?
A
Closed = no node Open = antipode
8
Q
What does n equal in tubes?
A
N = nodes
Lambda = 4L / n
- only odd harmonics
9
Q
Period: variables that influence
A
T = 2pi * square root (L / g)
