physics assignment help
DENSITY of Metals
Experiment 2
Physics Lab - 101
Objectives
Determine DENSITY of 2 different Metals
Copper
Aluminum
Calculate the density for different shapes
Verify:
Density is CONSTANT for SAME METAL regardless of shape.
Density is DIFFERENT for different Metals even for same size & shape
Aluminium and Copper have different density
Equipments Needed:
Copper
Aluminum
BEAM Balance
For measuring MASS
Water cylinder
D =
MASS measured using Triple Beam Balance.
Volume measured using Water cylinder
Volume also calculated applying formulas for all shapes
Theory
(gram)
(cm3)
1. Cylinder
V =
L = Length
d = Diameter
2. CUBE
V = L3
3. Ball
V =
4. Cuboid
V =
L = Length
W = Width
H = Height
L
L
L
w
H
4
6
L
W
H
Volume Formulas
d
d
(Weight)
(Size)
Density: =
To measure MASS:
https://youtu.be/BAf6HoVK6JI?t=55
100
50
6.6
+
+
= 156.6 g
Pan Empty
3 Weights
Fix all 3 weights at ZERO
Balance pointer at Zero
Object to be measured is kept on Pan
3 Weights are adjusted to get the correct Mass
Always start adjusting with 100 g weight
Second with 10 grams
Last with 1g weight till the pointer is aligned with zero
Sum of all 3 scales gives total in grams
Using Triple Beam Balance
On Campus Worksheet Page – 1
x.x
x.xxx
x.xxx
x.xx
D =
x.x
2.71
x.xxxx
x 2.54
x.xxx
VBall =
x.xx
2.71
HW
x.x
2.71
VCyl =
HW
V = V2 V1
V1
V2
D =
HW
On Line Worksheet Page – 1
Take readings from pictures
x.x
(cm)
D =
2.71
x.xx
TR
VR
x 2.54
x.x
x.xx
x.xxx
TR
VR
x 2.54
x.xx
(inch)
2 decimal places for Density and Volume
3 decimal places for Length, Dia,
No separate columns given for MSR & VSR
Write the Total readings in given columns
x.xxx
x.xxx
2.71
2.71
On Campus Worksheet Page – 2
x.x
x.xxx
x.xxx
x.xx
D =
x.x
2.71
x.xxxx
x 2.54
x.xxx
VCube =
x.xx
2.71
HW
x.x
2.71
VCyl =
HW
V = V2 V1
V1
D =
HW
V2
On Line Worksheet Page – 2
D =
(inch)
x 2.54
8.96
Similar method as page - 1
8.96
8.96
Worksheet Page – 3
V = L .W.H
D =
(inch)
x 2.54
cm
cm
cm
8.96
2.71
On Line & On Campus
Worksheet
VCylinder =
4
Calculate Mass from density formula
To Calculate d
VBall =
6
V1
V2
D =
V2 V1
V2 V1
D =
HW
Online & On Campus
Submission DUE
Tomorrow evening 5 pm
Upload in Moodle in PDF
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