679357
53
Zoom out
Zoom in
Previous page
1/62
Next page
52
Time: 1 - 1.5 hours
LearningObjectives - Children should learn:
•toobserveanddescribemovementsinasimplemachine
•torelatesciencetothewaysinwhichfamiliar
machines work
•tocarryoutasimpleinvestigation
Vocabulary
block and tackle, pull, pulley,
fixed, movable, force, effort, load,
counterbalance, counterweight,
balanced, unbalanced, lever,
modify, evaluate, amplify, trade-off,
topple, unstable, stability, compare,
because
Possible Teaching and Learning Activities
Introduction
Whole class
•Discussand/orreviewthechildren’sprevious
experiences in which they discovered a connection
between the number of pulleys used in a pulley system
and the amplification of the pulling force – the greater
the number of pulleys used, the easier becomes the
lifting job.
•Show,oraskthechildrentofind,photographsand
pictures of cranes at work.
•Askthemtodescribethepulleyssystemstheyuseand
the jobs they have to do?
•Howdotheythinkthesepulleyssystemsmakeiteasier
to lift heavy loads?
Resources
Each group of 2-3 children
will need:
1 K’NEX Introduction to Simple
Machines: Levers and Pulleys kit
with Building Instructions booklet
Dot stickers or pieces of masking
tape
Felt-tipped pens
Measuring tape or rulers
Paper cup
200g slotted masses
Large paperclips
2 x 5 Newton force meters (optional)
Teacher’s Notes
Photographs of cranes can be
obtained from www.freefoto.com.
and http://pics.tech4learning.com/
www.freefoto.com has some
good photographs of a giant float-
ing crane pulling the Gateshead
Millennium Bridge in place.
Internet research:
www.howstuffworks.com.
For additional information on
pulleys see A Quick Guide
to Pulleys.
Lesson�9:�The�Block�and�Tackle�
A Compound Pulley System
Education
®
53


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide in the language / languages: English as an attachment in your email.

The manual is 7,26 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide

Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide Instructions - German - 62 pages

Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide Instructions - Dutch - 62 pages

Knex 78610 - Education Intro to Levers and Pulleys Teachers Guide Instructions - French - 62 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info