Simple Harmonic Motion Flashcards Preview

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Flashcards in Simple Harmonic Motion Deck (17):
1

Amplitude

Maximum displacement

2

Time Period

Time for one complete oscillation

3

Frequency

Number of oscillations per second

4

Angular frequency

2π x frequency

5

Phase difference

An angular measure of how much one oscillation leads or lags another

6

Simple harmonic motion

When the acceleration is proportional to displacement
Acceleration occurs he the opposite direction to displacement

7

Useful damping

Bridges
Car suspension

8

Damping problems

Anything which requires an oscillator to maintain a fixed ampmitude

9

What is the gradient of a displacement graph equal to?

The velocity

10

Displacement

Distance of a body moved from its equilibrium

11

equation defining simple harmonic motion

a = - (2πf)^2x

12

equations for displacement

x= Acos(2πft) or x= Asin(2πft)

13

equation for Vmax

Vmax = (2πf)A

14

How is the time period related to amplitude of oscillations

Time period and Amplitude are independent

15

Uses of resonance

cooking food in microwaves

16

unwanted resonance

suspension bridges

17

Resonance

occurs when the frequency of oscillations of a driving force is very close to the natural frequency of the driven system; this results in maximum energy transfer to the driven system, leading to very large amplitude oscillations