Motion and Forces What makes us move and why we move in that particular way…

What Is Motion? Motion: w hen an object changes position over time when compared with a reference point ReferencePoint Object In Motion

How Can We Describe Motion? 3 Ways To Categorize Motion3 Ways To Categorize Motion 1. Position 2. Direction of Motion 3. Speed Which way did he go, which way did he go???

Follow The Directions!!!! The direction of the objects motion is dependent on the reference point If the reference point changes, the direction of the object can also be looked at differently

What Makes An Object Move? Force: a push or pull on an objectForce: a push or pull on an object Characteristics of Forces 1. Have size 2. Direction 40 Newtons 3. Units = Newtons

Forces Control The Motion of an Object If an object is in moving or even if it is sitting still, there are still forces acting upon it If the forces acting on the object are balanced, or equal to one another but in opposite directions…then the object doesn’t move. If one of the forces is larger, it will move the object in the direction of that force

All Forces Control The Motion of the Object We can use something called a Force Diagram

Net Force Easy Calculation 2 Scenarios 1.If the forces are moving in the sameadd same direction, add them together 2. If the forces are moving in the oppositesubtract opposite direction, subtract them, leaving the object to move in the direction of the greater force

Example

Newton’s Laws 1.An object in motion tends to stay in motion unless acted upon by an motion unless acted upon by an outside force outside force 2. Force = mass x acceleration 3. For every action, there is an equal and opposite reaction

One Force Calculation Example 5 m/s 2 Force = mass x acceleration Force = 500 kg x 5 m/s2 Force = 2500 N to the West