Quiz 7

  1. A small spacecraft has an engine that can give it a constant acceleration of $1 m/s^2$.
    1. How far will it travel in one hour?
    2. What is the average speed of the craft over that hour?
    3. How far will the craft travel in the second hour of its flight ...
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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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