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Helpful Videos

- Khan Academy - Intro to Dimensional Analysis Sal shows how we can treat units of measurement algebraically, and use these tools in order to convert between different units of the same quantity
- Crash Chemistry Academy - Unit Conversion Using Dimensional Analysis Tutorial step by step how to set up dimensional analysis calculations explained from a single to multi-step calculations for unit conversion problems
- The Organic Chemistry Tutor - Converting Units This video focuses on converting units of measurement with conversion factors.
- Tyler DeWitt - Converting Units with Conversion Factors How to convert units using conversion factors and canceling units.

Practice Problems

Helpful Videos:

- Bozeman Science - Vectors & Scalars Mr. Andersen explains the differences between scalar and vectors quantities. He also uses a demonstration to show the importance of vectors and vector addition.
- Khan Academy - Intro to Vectors & Scalars Distance, displacement, speed and velocity. Difference between vectors and scalars. Created by Sal Khan.
- Math and Science In this lesson, you will about the difference between Vectors and Scalars and why these quantities are important in Physics, Math, and Engineering.
- The Organic Chemistry Tutor - Scalars and Vectors This scalars and vectors physics video tutorial explains how to distinguish a scalar quantity from a vector quantity.
- The Organic Chemistry Tutor - Vectors This precalculus video tutorial explains the basics of vectors.

Practice Problems

- Measurements: Constants, Units, and UncertaintiesMeasurement Reference resource provided by the National Institute of Standards and Technology (NIST). NIST is an agency of the U.S. Department of Commerce, was founded in 1901 as the nation's first federal physical science research laboratory. NIST's mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life.
- AstrophysicsThis is a NASA-funded project which maintains three bibliographic non-full text databases containing more than 9.7 million records: Astronomy and Astrophysics, Physics, and arXiv e-prints.
- NIST Physical Reference DataPhysical Reference Data, published by the National Institute of Standards and Technology, features online data and datasets for physics research and data activities.

- The Feynman Lectures on Physics However, we want to be clear that this edition is only free to read online, and this posting does not transfer any right to download all or any portion of The Feynman Lectures on Physics for any purpose.