Newton's First Law:

An object will remain at rest or continue to with a constant velocity unless acted upon by a resultant force.

State Newton's Second Law:

The resultant force on an object is directly proportional to the rate of change of momentum and in the same direction.

F∝ (Change in P)

————————————

(Change in t)

Change in P = Force × Change in time

Newton's Third Law:

Every action has an equal and opposite reaction.

What is the equation for the **change in momentum (P)?**

Change in momentum = mv - mu

Change in P = (mass × final velocity) - (mass × initial velocity)

If momentum is constant:

Change in P = m(v - u)

What are the **FOUR **fundemental forces?

Gravitational Force.

Electromagnetic Force.

Stong Nuclear Force.

Weak Nuclear Force.

What is the equation for **MOMENTUM (P)**

Momentum = Mass × Velocity

P = mv

kgms = kg × ms

What is **THE LAW OF CONSERVATION OF MOMENTUM?**

In a closed system (where no external forces are acting) the total momentum of all objects, in a specified direction, remains constant.

State the table of **INELASTIC **and **ELASTIC COLLISIONS.**

In all collisions and interactions, what is conserved in all directions?

Linear momentum

Momentum P1 + Momentum P2 = Overall Momentum (P)

What is **IMPULSE?**

Change in momentum.

How do you calculate **MOMENTUM **on a **GRAPH?**

Calculate the area underneath the graph.

How do you solve **COLLISIONS IN TWO DIMENSIONS?**

Using Vector Trianges