LESSON: COLLISION

COLLISION

OCCURS WHEN TWO OR MORE OBJECTS COME INTO CONTACT WITH EACH OTHER AND EXERT FORCES ON ONE ANOTHER FOR A SHORT PERIOD OF TIME.

COLLISION

DURING THIS, OBJECTS MAY CHANGE THEIR SPEED, DIRECTION, OR SHAPE BECAUSE OF THE FORCES INVOLVED.

COLLISION – AN EVENT IN WHICH TWO OR MORE OBJECTS HIT OR INTERACT WITH EACH OTHER FOR A SHORT TIME, CAUSING CHANGES IN THEIR MOTION.

COLLISION

IN PHYSICS, ________ ARE STUDIED USING THE PRINCIPLE OF CONSERVATION OF MOMENTUM.

PERFECTLY INELASTIC, ELASTIC, INELASTIC

TYPES OF COLLISIONS

PERFECTLY INELASTIC

THE BODIES CLING TO EACH OTHER AFTER COLLISION AND MOVE WITH A COMMON VELOCITY (V)

PERFECTLY INELASTIC COLLISION – A TYPE OF INELASTIC COLLISION IN WHICH THE OBJECTS STICK TOGETHER AND MOVE AS ONE OBJECT AFTER COLLIDING. IT HAS THE GREATEST POSSIBLE LOSS OF KINETIC ENERGY FOR THAT COLLISION.

PERFECTLY INELASTIC

LINEAR MOMENTUM IS CONSERVED.

PERFECTLY INELASTIC

e = 0

PERFECTLY INELASTIC

KINETIC ENERGY IS NOT CONSERVED.

DISSIPATIVE FORMS

SOME OF THE KINETIC ENERGY GOES INTO ______________LIKE HEAT, SOUND, AND PERMANENT DEFORMATION OF THE BODY/BODIES.

ELASTIC

BODIES SEPARATE AFTER COLLISION

ELASTIC COLLISION – A COLLISION IN WHICH BOTH MOMENTUM AND KINETIC ENERGY ARE CONSERVED. THE OBJECTS BOUNCE OFF EACH OTHER WITHOUT LOSING TOTAL KINETIC ENERGY.

ELASTIC

KINETIC ENERGY IS CONSERVED

ELASTIC

e = 1

INELASTIC

BODIES SEPARATE AFTER COLLISION

INELASTIC COLLISION – A COLLISION IN WHICH MOMENTUM IS CONSERVED, BUT KINETIC ENERGY IS NOT. SOME KINETIC ENERGY IS CONVERTED INTO OTHER FORMS, SUCH AS SOUND, HEAT, OR DEFORMATION.

INELASTIC

KINETIC ENERGY IS NOT CONSERVED

INELASTIC

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