Flashcards in Oscillatory Motion Deck (22):

1

## When will a spring produce a restoring force?

### When it is stretched or compressed

2

## What does the negative sign in Hooke's Law indicate?

### F=-kx; indicates that the force is restorative

3

## What is Simple Harmonic Motion?

### Periodic motion in which the acceleration is directly proportional to the negative of the displacement

4

## In a simple harmonic motion, which way is the acceleration in reference to the motion?

### Opposite; back to equilibrium; ie. if a spring is stretching to the right, its acceleration is to the left

5

## What is Amplitude?

### Maximum distance away from equilibrium

6

## What is the equation for maximum energy of a compressed spring?

### E=1/2kA^2

7

## What is the difference of a sine graph and cosine graph?

### Sine starts at the origin (equilibrium) and cosine starts at maximum amplitude, away from origin

8

## What is a Restoring Force?

### A force that puts the system back into equilibrium

9

## For SHM, on a x vs t graph, when is velocity at its +/- max?

### Velocity is at its max at equilibrium or the midline; max -v when going to a min (-slope); max +v when going to a max (+slope)

10

## For SHM, on a x vs t graph, when is velocity equal to zero?

### At the maximum and minimum amplitudes; where the slope is horizontal (slope=0)

11

## For SHM, on a x vs t graph, when is acceleration at its +/- max?

### Acceleration is opposite to motion; max amplitude= max -a; min amplitude= max +a

12

## For SHM, on a x vs t graph, when is acceleration equal to zero?

### At equilibrium or midline

13

## When is the equation for the period of a mass-spring system?

### T=2π*sqrt(m/k)

14

## What is the period of a mass-spring system independent from?

### Acceleration due to gravity

15

## What is angular frequency also known as?

### Angular velocity

16

## What is the equation for angular frequency?

###
ω=2π/T

ω=sqrt(k/m)

17

## What is the equation for the period of a pendulum?

### T=2π*sqrt(l/g)

18

## What is the period of a pendulum independent from?

### Mass

19

## What are the periods all simple harmonic motions independent from?

### Amplitude

20

## What is the equation for the potential energy of a spring?

### Us=1/2kx^2

21

## What is the equation for the velocity of a spring?

### 1/2kA^2=1/2mv^2+1/2kx^2; v=+/-sqrt[k/m(A^2-x^2)]

22