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Lab #6.3a Mechanics: Chapter 6  the Weight

Purpose
In this activity, you will investigate the relationship between weight and mass.

Discussion
Mass and weight are different quantities. Mass is a measure of an object’s inertia, the extent to which an object resists changes to its state of motion. Weight is a measure of the interaction between an object and the planet the object is nearest to. Usually that planet is the earth. The weight of an object is related to its mass. In this activity we will find out what that relationship is.

Required Equipment

1 Kg Spring Scale, Hooked Masses (1- 100g, 2- 200g, 1- 500g), Ring Stand and Base, S Clamp, Crossbar, Collar Hook, Graph Paper.

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Student Worksheet   Teacher Notes

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1000g/10 N Spring Scale     01-6962    
 
 
A clear plastic body reveals this scale's inner workings so your students can clearly see how gravity and mass determine weight. Printed in grams and Newtons. Color-coding makes it easy to find the right scale for the task.  More Info
           
$6.50
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Hooked Mass Set     P1-1000    
 
 
Hooked masses in a storage block. Includes one each of 10g, 50g, 100g, 500g, and 1000g, and two each of 20g and 200g.  More Info
           
$59.00
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Ring Stand Base with Rod     66-4220    
 
 
Heavy duty ring stand with base 5" x 8" and rod 20" long  More Info
           
$11.00
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S Clamp, Diecast w/ T Screws     66-8290    
 
 
Die cast alloy S Clamp with nickel plated T screw heads. Will accept rods up to 16mm in diameter.  More Info
           
$5.50
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Photogate Mounting Rods     PC-7502    
 
 
Phototgate Mounting Rod conveniently screws into the side of a photogate which than allows it to be easily attached to a physics workshop stand. Sold in pairs.  More Info
           
$8.00
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  Insert Collar Hook Product Bot Here

The "graph paper" required for this lab is readily available at your local office or school supply store. Each lab would require one sheet.