In the quantum world, uncertainties exist in our knowledge of
A) positions and velocities of objects when we first start observing them.
B) velocities and positions of objects after they have undergone a change.
C) the sum of an object's position and velocity.
D) the difference between an object's position and velocity.
E) when to start observing an object and how to make those observations.

Question

Quizplus · Accepted Answer

The Heisenberg uncertainty principle states that there is a fundamental limit to the precision with which certain pairs of physical properties of a particle, such as position and momentum, can be known simultaneously. This means that in the quantum world, uncertainties exist in our knowledge of the positions and velocities of objects when we first start observing them.

In the Quantum World, Uncertainties Exist in Our Knowledge of