Concept Explanations

Waves

4.3 – Wave Characteristics

4.3.1 – Wavefronts and Rays

4.3.2 – The Intensity of Waves

4.3.3 – The Principle of Superposition

4.3.4 – Polarization and Malus's Law

Definitions to Memorize*

 

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Definition/Explanation

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Principle of Superposition

When two or more waves travel through the same medium at the same time, the displacement of the medium is the sum of the individual wave displacements.

Video 4.3.3

* The terms and concepts above have directly come up on past IB Physics exams from May 2016 onwards. 

Directly in this context  means that the answer to a Paper 1 or Paper 2 question was the definition of the term or concept or that the answer could be deduced directly from the definition.  Therefore, this list might be helpful when you are deciding what to memorize for your IB Physics exams.

To see a complete list of definitions from all topics along with the number of times the term/concept occured on exams since May 2016, click on the link below:

All Definitions from Past IB Exams (pdf)

Topic Specific PaperPlainz Resources

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HL Questionbank

Waves

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HL Past Exam Video Solutions by Topic

Waves

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