Elastic Collision
Also known as: perfectly elastic collision
A collision in which both the total momentum and the total kinetic energy of the system are fully conserved after impact. Elastic collision is the idealized model for atomic and molecular collisions.
💡 Intuition
Billiard balls bouncing off each other: the total energy stays the same, nothing is lost to heat or deformation.
Core Idea
In an elastic collision, kinetic energy is fully recovered after impact.
🔬 Example
🎯 Why It Matters
Elastic collision is the idealized model for atomic and molecular collisions.
⚠️ Common Confusion
Perfectly elastic collisions are rare in everyday life; most real collisions lose some energy.
Related Concepts
Prerequisites
Next Steps
How Elastic Collision Connects to Other Ideas
To understand elastic collision, you should first be comfortable with conservation of momentum and kinetic energy. Once you have a solid grasp of elastic collision, you can move on to inelastic collision.
Go Deeper
Frequently Asked Questions
What is Elastic Collision in Physics?
A collision in which both the total momentum and the total kinetic energy of the system are fully conserved after impact.
Why is Elastic Collision important?
Elastic collision is the idealized model for atomic and molecular collisions.
What do students usually get wrong about Elastic Collision?
Perfectly elastic collisions are rare in everyday life; most real collisions lose some energy.
What should I learn before Elastic Collision?
Before studying Elastic Collision, you should understand: conservation of momentum, kinetic energy.