Let's Calculate Work! Physics And The Work Formula : Physics for Kids - 5th Grade | Children's Physics Books , livre ebook
64
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English
Ebooks
2017
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64
pages
English
Ebooks
2017
Vous pourrez modifier la taille du texte de cet ouvrage
Obtenez un accès à la bibliothèque pour le consulter en ligne En savoir plus
Publié par
Date de parution
15 mai 2017
Nombre de lectures
0
EAN13
9781541918917
Langue
English
Let’s Calculate Work!
Physics And The Work For mula
Physics for Kids - 5th G rade
Children’s Physics B ooks
Speedy Publishing LLC
40 E. Main St. #1156
Newark, DE 19711
www.speedypublishing.com
Copyright 2017
All Rights reserved. No part of this book may be reproduced or used in any way or form or by any means whether electronic or mechanical, this means that you cannot record or photocopy any material ideas or tips that are provided in this book.
I n this book, we’re going to talk about how work is calculated. So, let’s get right to it!
WHAT IS WORK?
W e use the word “work” all the time to represent effort that we make.
Getting an A on your physics test might be considered work. Pushing a large rock from one point to another point might be considered work. Holding a brick over your head in one position might be considered work. Even reading this page might be considered work. However, in all these examples only one of them is considered work in the subject area of physics.
WHAT IS THE FORMULA FOR WORK?
I n physics, only the example where we are pushing the rock would be considered work. That’s because in physics the definition of work is when a force acts upon an object and that force causes the object to be displaced from its beginning point to a point away at its ending point.
I n fact, if you pushed and pushed and pushed until you were blue in the face and the rock didn’t move at all, this wouldn’t be considered to be work, in physics. You’d be tired and would have exerted a lot of effort, but it wouldn’t be considered work.
T here’s a very simple equation to calculate work in physics, it is:
Work equals the force exerted times the displacement
W = Fd
