2 Oscillations pre-question Is a bouncing ball an example of simple harmonic motion?YesNo
3 Oscillations pre-question Two kids are swinging on two swings of the same height – one kid is a little chubbier than the other. Neglecting frictional forces, which kid completes a back and forth swing in the fastest time?A) The chubby kidB) The skinny kidC) The kid who pushes off the ground the bestD) Both complete in the same time
4 Outline for Oscillations Simple Harmonic MotionPosition, Velocity, AccelerationForceEnergyResonance and Damping
5 Oscillations and Periodic Motion Simple Harmonic Motion1) About Equil.2) Periodic3) Sinusoidal
6 Discussion: Examples of SHM? Mass on a SpringPendulumSnowboarder in halfpipeBungee jumperChild on swingBobble head doll?
9 Discussion: PhaseYour book says that displacement is in terms of cosine and I just said that it is in terms of sine? Who is right?There is also a phase term (φ) that let’s you set the initial condition.If the oscillation starts at A it is a sine with a φ=90 degrees or a cosinewith a φ=0 degrees.