# SIMPLE HARMONIC MOTION

Mind Map by emptyastea, updated more than 1 year ago
 Created by emptyastea almost 7 years ago
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1

### Description

PHYSICS 2 (Simple Harmonic Oscillation) Mind Map on SIMPLE HARMONIC MOTION, created by emptyastea on 07/07/2013.

## Resource summary

SIMPLE HARMONIC MOTION
1 restoring force is directly proportional to displacement from equi. point

Annotations:

• F= -kx a= -w^2x

Attachments:

2 requirements
2.1 mass
2.2 linear restoring force
3 characteristic
3.1 periodic
3.2 same frequency
3.3 oscillation - same oscillation
3.4 linear restoring force
5 parameters
5.1 displcacement (x)
5.2 amplitude (A)
5.3 period (T)
5.4 frequency (f)
5.5 angular frequency (w)
5.6 phase angle (@)
6 kinematics
6.1 displcacement
6.1.1 x= A cos @= x[max] cos wt
6.1.1.1 A=x[max]
6.1.1.2 @=wt
6.1.2 at x-axis
6.1.3 @=wt, w is constant. t is independent (outside the circle)
6.1.4 Enter text here
6.2 velocity
6.2.1 -Aw sin wt
6.2.1.1 because the velocity is moving to the left, it have -(ve) sign

Attachments:

6.2.1.2 we use sin bcoz the @ is on the P point, not Q
6.3 acceleration
6.3.1 do not fixed with time
6.3.2 a=-xw^2, x is displacement
6.3.3 have max acceleration at max -,+(x)
6.4 w (angular speed) = the number of radian it move through per second
6.4.1 2(pai)f, f-is constant in 1 frequency for 1 cycle
6.4.2 2(Pai)f=2pai/T
7 system
7.1 oscilaltion spring
7.2 pendulum
8 damping, forcing & resonance
8.1 damping
8.2 forced oscilation & resonance
8.3 self-excited vibration

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