A Level Physics: Simple Harmonic Motion

What is simple harmonic motion?
Acceleration, displacement graphs.

Chapters:
00:00 Definition of Simple Harmonic Motion
03:22 Equation for Simple Harmonic Motion
05:20 Past Paper Question and Solution

[Mathematician]

This is a very nice illustration. We may apply this to a electric field as well. Your fantastic vedio gave me the idea.

Suppose, there is a uniformly charged ring of radius r, having a net charge q and there is a charged bead of mass m on the axis, at a distance x from the centre, having charge - Q, which on the influence of the electric field, performs simple harmonic motion for small x

Here actually, we can say for small x, the term (r^2+x^2)^(3/2) becomes r^3

So the force is - kQqx/r^3,

ma=-kQqx/r^3

a=(k/m)/r^3. Qq. x

Acellaration is proportional to displacement. This helps to interpret.

[Mathematician]

It is a great channel for a physics enthusiast. Keep making awesome videos

[rikZingT]

Watching this when i have an exam on 3 hours ahhh

[ienoxkb]

i finally got what shm meant THANK U SO MUCH

[Bbbbbbbbbbhhhhhhh]

Can I ask, when you said that the force is acting upwards when we pull it down because it wants to return to equilibrium, we are also applying a force on it to pull it down right? Do we not think about that when we are looking at SHM?

[godfred]

can you show why a=-ω^2x? i want to know how it is derived