GCSE Physics - Momentum Part 1 of 2 - Conservation of Momentum Principle
00:19
Momentum is the product of mass and velocity. It is a vector quantity, and the unit of momentum is Kg meter per second.
01:34
Momentum is a vector quantity because velocity is a vector and mass is a scalar quantity.
The video discusses momentum, which is the product of mass and velocity and is a vector quantity. The force is also related to momentum, and if a large amount of force acts for a very short time, it is called impulse. Safety features like crumple zones, seat belts, airbags, and collapsible steering wheels increase the time of collision and reduce the amount of impact force, thereby decreasing serious injuries. The conservation law of momentum states that the total momentum before and after a collision remains the same, making momentum conserved in any type of collision. The formula for total momentum before and after a collision is provided for two objects that either move separately or combine after a collision.
Momentum is an essential concept in Physics, and this article will cover Part 1 of 2 on the Conservation of the Momentum Principle. We'll discuss momentum, how it's conserved, and its implications for physical systems. Get ready to dive into some physics!
This video covers the following:
- What momentum is
- How to calculate the momentum of an object
- The idea that momentum is a vector quantity
- What 'is the conservation of momentum principle is
- A worked example of how you can use the conservation of momentum principle to work out unknown momentum or velocity values
![](https://s2.save4k.ru/pic/-0hlffJkZxk/maxresdefault.jpg)