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:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Collisions, pages 72-73, 199, 222-223, Gateway GCSE Physics, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Collisions, particles in reactions, pages 176-179, Gateway GCSE Chemistry, Oxford, OCR '']
==Key Stage 5==
===Meaning===
'''Collisions''' are interactions between [[particle]]s or bodies where they exert [[force]]s on each other for a short duration.
===About Collisions===
*'''Collisions''' can be elastic or inelastic.
*In [[Elastic Collision|elastic collisions]], both [[momentum]] and [[Kinetic Energy|kinetic energy]] are [[Conservation Law|conserved]].
*In [[Inelastic Collision|inelastic collisions]], [[momentum]] is [[Conservation conserved but [[Kinetic Energy|kinetic energy]] is not.
*'''Collisions''' can be analyzed using the principles of [[Conservation of Momentum|conservation of momentum]] and [[Energy|energy]].
*The outcome of a '''collision''' depends on the relative [[Velocity|velocities]], [[mass]]es, and properties of the '''colliding''' bodies.
*In perfectly [[Inelastic Collision|inelastic collisions]], the '''colliding''' bodies stick together after impact.
*'''Collision''' analysis is crucial in understanding phenomena in mechanics, astrophysics, and particle physics.
===Examples===
*Billiard balls colliding is an example of nearly [[Elastic Collision|elastic collisions]].
*Car crashes typically involve [[Inelastic Collision|inelastic collisions]] where the vehicles deform and [[Kinetic Energy|kinetic energy]] is converted to other forms of [[Energy|energy]].