TNCC Biomechanics, Kinetics, and Mechanisms of Injury

TNCC Biomechanics, Kinetics, and Mechanisms of Injury Energy at rest is considered what? - potential once a mass starts to move, the energy in motion is called what? - kinetic kinematics is the study of what - motion and the physics of energy transfer kinematics and the physics of energy transfer is applied to all mechanical traumas and is essential element of what? - determining traumatic injury injury severity depends on what? - amount of force absorbed by the body in relation to isaac newtons laws of motion, applying laws of physics to anatomy and physiology does what? - illuminates injury patterns in trauma victims understanding the relationship between laws of physics and how they impact patterns of injury enables the trauma nurse to do what? - predict injury patterns, severity of injury and the care required for the patient Kinetic energy is... - the energy stored in an object in motion the amount of kinetic energy in an object is determined by - mass and velocity kinetic energy equation - KE is 1/2 mass x velocity squared when mass is doubled net energy... - doubles when velocity is doubled net energy is - quadrupled Newton's first law of motion - object at rest has potential energy and will remain at rest object in motion has kinetic energy and will remain in motion unless impacted by another object when energy is transferred, alteration can occur to one or both objects Newton's second law of motion - The acceleration of an object depends on the mass of the object and the amount of force applied force increase equals acceleration increase mass increase equals acceleration decrease