1. 2.4 – Forces transfer momentum

2. Objects in motion have momentum
A measure of mass in motion
The momentum of an object is the product of its mass and its velocity
Similar to inertia
P=mv (P stands for momentum, m stands for mass, v stands for velocity)

3. Which vehicle has more momentum & why?

4. How is momentum and inertia related? How are they different?
Both momentum and inertia depend on the MASS of an object.
Unlike inertia, momentum takes into account HOW FAST (velocity) the object is moving.

5. Momentum can be transferred from one object to another
A collision is a situation in which two objects in close contact exchange energy and momentum.

6. collisions Takes place between two objects in close contact
Causes an exchange of energy and momentum
One way in which objects transfer momentum
Object with less mass has greater change in velocity

7. Which “object” had the greater change in velocity?
Why?

8. Momentum is conserved
The principle of Conservation of momentum states that the total momentum of a system of objects does not change, as long as no outside forces are acting on that system.
Each object in a collision receives equal and opposite changes in momentum.
You can find the total momentum of a system between two objects by combining the momentum of both objects

9. Types of collisions
In some collisions, the objects separate and travel separately
In other collisions, the objects stick together and travel with their combined momentum

10. Momentum and newton’s 3rd law
Conservation of momentum is another way of looking at Newton’s 3rd Law. Newton’s 3rd Law describes how for every force there is an equal and opposite force and conservation of momentum works because of this principle
Here momentum is not conserved because there is an OUTside force (the firefighters holding the hose)