3B Scientific Set of 3 Cylinders, Equal in Volume - Manual

3B SCIENTIFIC ® PHYSICS
Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com
3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com
Subject to technical amendments
© Copyright 2007 3B Scientific GmbH
Set of 3 Cylinders, Equal in Volume U8403315
Instruction sheet
11/07 ALF
1 Aluminium cylinder
2 Iron cylinder
3 Brass cylinder
1. Description
The set of three cylinders, equal in volume, is used
for determining the densities of different solid bod-
ies. The set consists of one cylinder each of alumin-
ium, iron and brass. As they are of identical volume,
the difference between the densities is immediately
obvious to the student.
Each cylinder is equipped with a hook.
2. Technical data
Materials: Aluminium, iron, brass
Dimensions of cylinders: 40 x 20 mm 2 dia. approx.
3. Sample experiment
Determination of the densities of solid bodies
To determine the density the following equipment is
also required:
1 Electronic scales 600 g U42050-230
or
1 Electronic scales 600 g
U42050-115
1 Beaker from U14210
• Place a cylinder on the scale and record the
weight.
• Fill the glass beaker with water.
• Suspend the cylinder from the hook of the scale.
• Immerse the cylinder completely in the water
and again record the weight.
As a result of the upthrust, the apparent weight of
the body is reduced by an amount equal to the
weight of the volume of liquid that it displaces.
• Note the difference in weight, and from that
calculate the volume of the cylinder.
• Calculate the density of the cylinder using the
equation
V
m
= ρ
.
• Repeat the measurements with the other cylin-
ders and compare the results.