1. Motion

2. Motion Motion is the process of moving or changing places or position
Anything you do while moving is motion.
Fact: Speed is a major type of Motion

3. Determining motion
In order to determine motion you must know direction and speed
To describe motion accurately and completely, a Frame of Refrence* is necessary
You can’t determine motion without a type of force
The object’s motion doesn’t change if there is no force acted upon it
* A system of objects that are not moving with respect to one another

4. Force
Force* is a major part in motion. Without force motion wouldn’t exist.
Force can speed you up or slow you down
Examples of force:
Wind
Gravitational Force
Electrical Force
Normal Force
* Strength or energy as an attribute of physical action or movement
Fact: Electric force and magnetic force are the only forces that can both attract and repel

5. Speed Speed* falls in multiple categories/subsections such as:
Acceleration
Velocity
Average Speed
Instantaneous Speed
* The ratio of the distances an object moves to the amount of time the object moves

6. Acceleration Non-Constant Acceleration Constant Acceleration
Acceleration is equal to net force/mass
Acceleration is (A=Vf-Vi/T) the rate at which velocity changes
Non-Constant Acceleration
Describes the situation in which the speed of an object is increasing, but isn’t always the result of changes in speed
Constant Acceleration

7. Velocity The speed and direction in which an object is moving
Sometimes the motion of an object involves more than one velocity.
The change in velocity can be the result of a change in speed, a change in direction or both
Acceleration and Velocity are both vector quantities
The velocity of an object moving in a straight line changes at a constant rate.

8. Average and instantaneous speed
The total distance* travelled
Computed for the entire duration of a trip, and instantaneous speed is measured at a particular instant
The rate at which an object is moving at a given time
Example is the speedometer
*Distance- the length of the path between two points
*Displacement- the direction from the starting point and the length of a straight line from the starting point to the ending point

9. Net force & momentum Net Force Momentum
Net force is the overall force acting on an object
If an object hits another object they produce the same net force
the quantity of motion of a moving body, measured as a product of its mass and velocity
An object has a large momentum if the product of its mass and velocity is large
The loss of momentum in an object becomes a gaining in momentum in another object