Heisenberg's Uncertainty Principle

Definition

Heisenberg's Uncertainty Principle states that it is impossible to simultaneously measure the exact position and momentum (velocity times mass) of a particle with absolute certainty.

Related terms

Quantum Mechanics: The branch of physics dealing with atomic and subatomic systems which describes their behavior using wave functions.

Momentum: A vector quantity defined as the product of an object's mass and velocity.

Particle Physics: The branch of physics that studies the nature, properties and interactions of particles that constitute matter and radiation.