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29 Cards in this Set

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The branch of physics that deals with motion, taking into consideration mass, velocity, and force.
Kinetics
Tendency of an object to remain at rest or in motion unless acted upon by an external force.
Inertia
The process of changing place; movement.
Motion
The capacity to do work in the strict physical sense.
Energy
The energy an object has while it is in motion. It is related to the object's mass and velocity.
Kinetic energy
A measure of the matter that an object contains; the property of a physical body that gives the body inertia.
Mass
The rate of motion in a particular direction in relation to time.
Velocity
The rate at which speed or velocity increases.
Acceleration
The rate at which speed or velocity decreases.
Deceleration
The draining of blood to the point at which life cannot be sustained.
Exsanguination
Events of Vehicle Collision
- Vehicle collision
- Body collision
- Organ collision
- Secondary collisions
- Additional impacts
Types of Vehicle Impact
- Rotational
- Frontal
- Lateral
- Rear-end
- Rollover
Mechanisms Associated with Frontal Impacts
- Up-and-over pathway
- Down-and-under pathway
- Ejection
Application of the forces of trauma along the axis of the spine; this often results in compression fractures of the spine.
Axial loading
The region of a vehicle designed to absorb the energy of impact.
Crumple zone
Having a slanted position or direction.
Oblique
An agent that enhances combustion of a fuel.
Oxidizer
Area of overpressure that radiates outward from an explosion.
Pressure wave
A rapid increase, then decrease, in atmospheric pressure created by an explosion.
Overpressure
Mechanisms Associated with Blasts
- Pressure wave
- Blast wind
- Projectiles
- Personnel displacement
- Confined spaces and structural collapses
- Burns
The air movement caused as the heated and pressurized products of an explosion move outward.
Blast wind
Military weapons and munitions.
Ordnance
Arrow-shaped projectiles found in some military ordnance.
Flechettes
An agent that combusts easily or creates combustion.
Incendiary
Blast Injury Phases
- Primary - caused by heat of explosion and overpressure wave
- Secondary - caused by blast projectiles
- Tertiary - caused by personnel displacement and structural collapse
Undissolved solid, liquid, or gaseous matter in the bloodstream that may cause blockage of blood vessels.
Emboli
Labored or difficult breathing.
Dyspnea
Expectoration of blood from the respiratory tract.
Hemoptysis
Collection of air or gas in the pleural cavity between the chest wall and lung.
Pneumothorax