Speed, Velocity and Acceleration - Physics Book Grade 2 | Children's Physics Books , livre ebook
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
Découvre YouScribe et accède à tout notre catalogue !
Découvre YouScribe et accède à tout notre catalogue !
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
9781541918856
Langue
English
Speed, Veloc ity and Accelera tion
Physics Book Gra de 2 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
H ow fast are you going, and in what direction? Understanding speed, velocity, and acceleration help us know if we are going to get to where we want to go, and when. Read on and find out how these three concepts are related.
tablets
The physics of motion
W e have three related terms to describe how we move: speed, velocity, and acceleration. Let’s see what they mean, and how they relate to each other.
Speed is how fast
“S peed” is perhaps the easiest of the three terms to understand: it’s how fast you are going. We measure your speed by how far you go in a given amount of time. For example, if you are on a bicycle and at the end of an hour you are ten miles away from where you started, it’s pretty easy to see that your speed was ten miles per hour!
O f course, that ten miles an hour was your average speed over the whole hour. At one point, when you first put your feet on the peddles, your speed was zero miles an hour! To balance that, at some points during your
ride, maybe when the ride went downhill, you were probably going as fast as fifteen miles an hour. So your average speed over the hour doesn’t tell you how fast you were going at any given moment during your ride.
Roman legions’ speed
