Lesson 4

Acceleration comes from force, how do we measure and use force?

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Lesson 3

Acceleration changes velocity, but where does acceleration come from?

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Lesson 1

Introduction

What is physics?

The big questions of physics are the big questions of the universe: what is it? Why is it there? Did it have to be this way, or could it have been different? Physics uses mathematics, experiment, and explanation to come to terms with things that are ...

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