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Head First Physics by Heather Lang

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Chapter 2. Making it all MEAN Something: Units and measurements

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How long is a piece of string? Physics is based on making measurements that tell you about size. In this chapter, you’ll learn how to use units and rounding to avoid making mistakes - and also why errors are OK. By the time you’re through, you’ll know when something is significant and have an opinion on whether size really is everything.

It’s the best music player ever, and you’re part of the team!

Introducing the myPod - a revolution in portable music players!

Your design team has just finished the final case prototype. Now you need to draw up the blueprints to be sent to the factory that’s manufacturing the cases.

MEMO

From: myPod Case Design Team

We’ve just sent over the latest, and hopefully final, model myPod case design.

Could you draw up the plans and send them to factory where the cases are being manufactured? And send us back the myPod model when you’re done.

You will, of course, receive one of the limited edition numbered myPods for your troubles if you manage to turn this around quickly!

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So you get on with measuring the myPod case

The quicker the factory gets the plans, the better.

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