Effects of forces are described by Newton s Laws of Motion. Velocity is the rate of change of position. Acceleration of an object will be proportional to the net force acting on the object and inversely proportional to the mass of the object. For every action, there is an equal and opposite reaction. B. Energy makes change happen.
Energy exists in many forms.
Most of the energy that is available to make change occur in the watershed comes to earth in the form of sunlight. Energy is not created or destroyed within the watershed, but may be changed in form. Kinetic energy is the energy of motion. Potential energy is stored energy. Energy is transferred from one body to another when work is done.