Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 28 - Quantum Mechanics of Atoms - Questions: 3

Answer

A very large object has a smaller uncertainty about its current position.

Work Step by Step

A large particle has large uncertainty in its momentum, because $\Delta p = m \Delta v$. A large $\Delta p$ corresponds to a small uncertainty of its position, because $\Delta x \geq \frac{\hbar}{\Delta p}$. The smaller uncertainty about the massive particle’s current position makes it easier to predict its future position.
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