Equilibrium- Occurs when more than one force acts on a body but because the sum of the forces is zero, no change in velocity occurs.
Conservation of Energy- The concept that states that energy cannot be created or destroyed but can be converted from one form to another.
Speed- Is a scalar measure that indicates how fast an object is travelling at a specific instant in time.
Acceleration and Deceleration- Refers to the rate in which the speed of an object changes.
Velocity- Indicates speed as well as direction.
Inertia- Can be characterized by resistance and persistance. All objects resist movement of their inertia:Once movement is initiated, an object mass (and inertia) is expressed by a tendancy to contine to move at a uniform speed in a straight line inless gravity, air resistance or friction intervenes.
Mass- Mass is directly related with inertia: The more mass the more inertia.
Momentum- Is the amount of motion developed by an athlete or object.
1.) Linear Momentum- Amount of motion in a linear direction, horizontal or vertical
2.) Angular Momentum- Amount of motion in a rotation about an axis.
Impulse- Is the application of force over a segment of time that results in a change in momentum.
Force- Is a push or a pull that may change the state of motion of an object.