Unit 6: Simple Harmonic Motion

Question 1

simple harmonic motion

Answer 1

restoring force, conservation of energy (if no external work, TME is constant), sinusoidal

Question 2

simple pendulum

Answer 2

mass hanging from a strong or rod of negligible mass
restoring force: gravity
energies involved: gravitational potential, kinetic energy

Question 3

mass-spring system

Answer 3

a mass attached to an ideal spring attached to a fixed wall
restoring force: spring force
energies involved: elastic, kinetic, potential (only if it is vertically fixed)

Question 4

hooke’s law/ spring force

Answer 4

Fs= -k(x)
-opposite of spring constant multiplies by displacement

Question 5

solve for period

Answer 5

T= t/n
t= number of time total to complete oscillations
n=number of oscillations

Question 6

period

Answer 6

time it takes to complete one ocillation (s)

Question 7

frequency

Answer 7

how many oscillations per second (1/s, Hz)

Question 8

solve for frequency

Answer 8

f=n/t

Question 9

solve for period for mass on a spring

Answer 9

Ts=2π√m/k

Question 10

mass and period of mass on a spring relationship

Answer 10

as mass increases, T increases

Question 11

spring constant and period of mass on a string relation ship

Answer 11

as K increases, T decreases

Question 12

solve for period of pendulum

Answer 12

Tp=2π√L/g
L= length of string

Question 13

relationship of L and T on pendulum

Answer 13

if L increases, T increases

Question 14

relationship of g and T on the pendulum

Answer 14

as gravitational field strength increases, T decreases

Question 15

PE on mass-spring placed horizontaly

Answer 15

Us=1/2kx^2