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