The Uncertainty Principle: Definition, Consequences & Examples


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The Uncertainty Principle states that we cannot know both the _____ and the _____ of a particle to perfect precision.

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1. Why is it difficult to take a ''snapshot'' of a very small, quantum particle?

2. The _____ says that quantum properties cannot be observed for macroscopic objects, such as pennies or baseballs.

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About This Quiz & Worksheet

This quiz and its attached worksheet let you quickly assess your knowledge of the Uncertainty Principle in physics. You will be quizzed on the theory behind this principle and what it says about objects on the quantum level.

Quiz & Worksheet Goals

Use the questions on this quiz to see what you know about:

  • The difficulty involved with taking a 'snapshot' of a truly tiny particle
  • What states that quantum properties cannot be observed on the macroscopic level
  • The study of matter at very small scales

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the lesson, such as what the Uncertainty Principle states
  • Information recall - access the knowledge you've gained regarding what principle states that quantum properties cannot be observed on macroscopic objects
  • Knowledge application - use your knowledge to answer questions about the name for the study of very small-scale matter

Additional Learning

To learn more about this aspect of physics, review the accompanying lesson titled The Uncertainty Principle: Definition, Consequences & Examples. It helps you to understand:

  • The laws of physics that allow us to calculate the movements of macroscopic items
  • How light can act as both a particle and a wave
  • The scientist who discovered this principle