What is Momentum ?

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Momentum is a concept used very commonly in Physics. You encounter Momentum in the classroom, in scientific papers and text books, in conferences, on TV, in movies, in scientific Youtube Videos etc.

You might already know that the momentum of a body is the product of its mass and its velocity. But what does such a product really mean? Do you have a good feel for what momentum represents?

This video attempts to give you just that using simple examples. It also touches a little on a cornerstone of Physics: the principle of conservation of momentum.

If you wish to dive a little deeper in how to use conservation of momentum, I prepared a more detailed version of this video.

Hopefully, this video will give you the keys to your own feel of what momentum truly represents…

The level in Physics required to fully enjoy the content of this video is beginning high school (Grade 11, 1ere scientifique)

This video is produced and presented by Edouard Reny, Ph.D. in materials sciences and private tutor in Physics.

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wow! Quantity of motion!.
what a simple yet vivid way to describe momentum.
Thanks 😊 👍

nikhilthomas
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Thank you! I finally understood the notion of momentum

mayateola
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ridiculously simple explanation. Loved it !

shahzadkhan-xguq
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Could you please explain intuitively why the kinetic energy (Ke=1/2mv²) is not directly proportional to momentum ? The 1/2 and the v² (why square ?) is puzzling me.

I understood the mathematical demonstration, but after I ran several basic maths transformations, I realized it was due to Newton's 3rd law. But everyone seems to disagree with it lol

En_theo
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Sir explain more about conservation of momentum, thank you.

nuramuhammadashura
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I'm confused. I thought a running car is accelerating but in this video it only has velocity. ? One thing more if it is in space if an object is accelerated does that mean it will accelerate forever like it would be faster than light?

johnsonkitz
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Yes but the mass of an object can also change due to a force being applied to it

krasimirronkov