Articoli correlati a How Do You Lift a Lion?

9780807534199: How Do You Lift a Lion?
Rilegato
ISBN 10: 0807534196 ISBN 13: 9780807534199
Casa editrice: Albert Whitman & Co, 1996

Sinossi

Explore the functions of levers, wheels, and pulleys, and learn how to lift a lion, pull a panda, and deliver a basket of bananas to a baboon birthday party!

Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.

Dal risvolto di copertina interno

Explore the functions of levers, wheels, and pulleys, and learn how to lift a lion, pull a panda, and deliver a basket of bananas to a baboon birthday party!

Estratto. © Ristampato con autorizzazione. Tutti i diritti riservati.

How Do You Lift a Lion?

By Robert E. Wells

ALBERT WHITMAN & Company

Copyright © 1996 Robert E. Wells
All rights reserved.
ISBN: 978-0-8075-3419-9
CHAPTER 1

DID YOU EVER TRY TO LIFT A LION?

You'd have to be awfully strong.

It's because of the force of GRAVITY. Gravity pulls objects downward. When that object is as massive as a lion, it pulls pretty hard.

With a LEVER, you can lift a heavy weight with much less effort.

The main part of a lever is a bar or rod which balances, or pivots, on a FULCRUM.

If the FORCE side is longer than the LOAD side, you will have LEVERAGE. Leverage adds force to your own strength. With a force side this long, you could lift a lion!

So, if you had a lever with a handle THIS long, maybe you could lift them a little!

Gravity is pulling down on that panda. And there's also FRICTION between the ground and the pallet. Friction, or resistance, happens when two surfaces rub together. The more weight pushing on the surfaces, the more friction there is.


(Continues...)
Excerpted from How Do You Lift a Lion? by Robert E. Wells. Copyright © 1996 Robert E. Wells. Excerpted by permission of ALBERT WHITMAN & Company.
All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.

Editore
Albert Whitman & Co
Data di pubblicazione
1996
Lingua
Inglese
ISBN 10 
0807534196
ISBN 13 
9780807534199
Rilegatura
Copertina rigida
Numero di pagine
32
Contatto del produttore
non disponibile
Persona responsabile
non disponibile