Momentum, Collisions and Explosions

The What is Momentum? Video Tutorial explains the concept of momentum, giving attention to its meaning, its vector nature, its formula, its units, and the way to calculate it.

The Impulse-Momentum Change Theorem Video Tutorial explains how an impulse changes an object's momentum. But what exactly is impulse? And how can it be mathematically related to momentum change in order to understand collisions? Mr. H explains the important connection between impulse and momentum and explains how to use the idea.

The Controlling a Collision Video Tutorial explains how the variables of the impulse-momentum change equation - force, collision time, object mass, and velocity change - can be manipulated in order to increase or decrease the force experienced by an object during a collision. Numerous examples, illustrations, and animations assist in the explanations.

The Law of Momentum Conservation Video Tutorial explains the law of momentum conservation using numerous examples of collisions and explosions. The logical basis of the law is also discussed.

This video is complimented by 2 additional explanatory videos: Goal Line Stand and An Explosion Example.

The Solving Collision Problems Video Tutorial reviews the meaning of momentum conservation, explains in detail what an isolated system is, and then utilizes momentum conservation to solve three example problems. Problems include a hit-and-stick collision, a hit-and-bounce collision, and a perfectly elastic collision in which the colliding objects are moving in opposite directions.

This video is complimented by 1 additional explanatory video: Example 3 Video Solution.

The Explosion Analysis Video Tutorial explains the meaning of momentum conservation, the basis for momentum conservation, and the use of momentum conservation in the solving of Physics word problems.

Physics formulas can be more than a recipe for plug-and-chug problem-solving. They can also be a powerful guide for thinking about the effect of variables on a physical situation. The Proportional Reasoning and Collisions Analysis Video Tutorial explains how to use momentum and momentum conservation to analyze hit-and-stick collisions and quickly determine the after-collision speed of objects. Numerous examples, illustrations, and animations assist in the explanations.

This video is complimented by 1 additional explanatory video: Proportional Reasoning and Collisions Analysis Example