Pendulums | Oscillations and mechanical waves | Physics | Khan Academy

In this video David explains how a pendulum can be treated as a simple harmonic oscillator, and then explains what affects, as well as what does not affect, the period of a pendulum. Created by David SantoPietro.

Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.

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[Ureyeuh]

I just realized that this wasn't from "Khan Academy" but instead, "Khan Academy Physics". Subb'd so hard. Thank you for this. You're incredible with explaining these concepts. I appreciate this so much David.

[samuelolteanu]

I'm a crane operator. I've experienced first hand the difference in controlling a payload with 10m cable and 50 m cable with aditional side to side oscilations of the tall crane (by design).

[Safwan.Hossain]

That torque vs moment of inertia section was soooo helpful.

[angelofababeir]

"but if you're really clever"

[cardodalisay]

Him: "If you're really clever"

Me: Uhmm actually...

[sabrinas.]

Aaa...nd I'm back to watching this video again!

Why does this SIMPLE harmonic motion seems so COMPLEX to me🙃

[SadSocks]

Hi, I'd like to know what makes the pendulum swing in the first place: is it the horizontal component of the tension, the tangential component of the weight of the bob or both of them? Thank you :)

[dasterus]

Thanks for making these videos. It really helps in my studies.

[ReneVaeli]

Please make one where you describe with an exponential function

[PlayJewel]

B4 utube and khan academy and professor dave explains, i used to think im dumb in physics but now I realize everyday it wasnt me it was the teachers that never explained properly.

[lucianocelis]

Whats future research that can be done on the mechanics of pendulum

[gzygao]

Thank you very much for your great videos. I have a quick question. What software did you use for this presentation? I like to make some videos so we can share.

[AlexEbrahimi]

What software is used in the video for presentation?

[hosh]

How does General Relativity explain this in terms of time dilation? :)

[teslatesla]

During the past year, Laboratory of Two-Stage Mechanical Oscillations Research (a subsidiary of Veljko Milkovic Research & Development Center) has been successfully
developing "The Electric Brain" for the pendulum oscillations - a
sophisticated multi-sensor system for collecting all necessary
information from the pendulum swing/motion with the movable pendulum's
pivot point in order to deeply study the pendulum-lever system
and research the possibility of its automatisation.
The development is in the final stage and the
finalization is expected in the coming months. There are few snapshots
of the current development status of this device.

[Anujsingh-movd]

Increase in Mass means increase in MOI But acceleration due to gravity doesn't depends on mass, that's why Increase in mass doesn't Increase in period. Time period Will be same doesn't matter mass is whatever.

[justryan]

A mass m suspended by a wire of length L is a simple pendulum and undergoes simple harmonic motion for amplitudes less than about 15º. The period of a simple pendulum is T=2π√Lg T = 2 π L g, where L is the length of the string and g is the acceleration due to gravity.

[tanvidwarka]

Why is the time period independent of the mass of the bob?
I know there's an equation relating time period, length of the pendulum and acceleration due to gravity....but I need a scientific explanation for that. Help me please

[zizou]

But g is 9.82 m/s2 right? ... How are you supose to increase a constant?

[golardachhetri]

But if the concept about increasing g is increasing Fg so that Period Doesn't increasing mass also increase Fg.... But T aint dependent on mass how???