A-Level Physics Specification

Edexcel 9PH0

Section 13: Oscillations

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#13.181

understand that the condition for simple harmonic motion is \(F = −kx\), and hence understand how to identify situations in which simple harmonic motion will occur

#13.182

be able to use the equations \(a = −ω^2x\), \(x = A\cos{ωt}\), \(v = −Aω\sin{ωt}\), \(a = −Aω^2\cos{ωt}\), and \(T = \dfrac{1}{f} = \dfrac{2π}{ω}\) and \(ω= 2πf\) as applied to a simple harmonic oscillator

#13.183

be able to use equations for a simple harmonic oscillator
\(T = 2π\sqrt{\dfrac{m}{k}}\), and a simple pendulum \(T = 2π\sqrt{\dfrac{l}{g}}\)

#13.184

be able to draw and interpret a displacement–time graph for an object oscillating and know that the gradient at a point gives the velocity at that point

#13.185

be able to draw and interpret a velocity–time graph for an oscillating object and know that the gradient at a point gives the acceleration at that point

#13.186

understand what is meant by resonance

#13.187

CORE PRACTICAL 16: Determine the value of an unknown mass using the resonant frequencies of the oscillation of known masses.

#13.188

understand how to apply conservation of energy to damped and undamped oscillating systems

#13.189

understand the distinction between free and forced oscillations

#13.190

understand how the amplitude of a forced oscillation changes at and around the natural frequency of a system and know, qualitatively, how damping affects resonance

#13.191

understand how damping and the plastic deformation of ductile materials reduce the amplitude of oscillation.