Oscillatory Motion Flashcards Preview

AP Physics 1 > Oscillatory Motion > Flashcards

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

What is never drawn on a free body diagram?

Centripetal force/acceleration