MALAYSIAN POLYTECHNIC
MATHEMATICS, SCIENCE AND COMPUTER DEPARTMENT
BB101 - ENGINEERING SCIENCE
LAB REPORT
EXPERIMENT 3
NAME
MATRIX NO
GROUP
MEMBERS
TITLE
LECTURER’ S
NAME
(TO BE FILLED UP BY LECTURER)
DATE OF SUBMISSION
LECTURER’S
COMMENTS
RUBRIC
ITEM
MARKS
4
1.
Procedures
2.
Participation
3.
Diagrams
4.
Data
5.
Calculations
6.
Analysis
7.
Error Analysis
8.
Questions
9.
Conclusion
10.
Submission Date
TOTAL
BB101
3
2
1
P age |2
ARCHIMEDES’ PRINCIPLE
OBJECTIVE
To determine the buoyant force from Archimedes’ Principle.
INFERENCE
Archimedes` Principle states that “When an object is immersed in a fluid (liquid or gas), the
buoyant force (up thrust force) on the object is equal to the weight of fluid displaced by the
object”.
HYPOTHESIS
The buoyant force on an object is equal to the weight of the water displaced.
APPARATUS
1.
Retort stand
2.
Spring balance /Balance
3.
3 Set of Block (Wood, Metal, Plastic)
4.
Beaker
5.
Eureka beaker
6.
Scissor
7.
String
-1
-1
-1
-2
-1
-1
PROCEDURES
1.
Weigh the mass of empty beaker.
2.
Hang the spring balance at the arm of retort stand.
3.
Tie the block and hang to the spring balance.
4.
Record the weight of the block in the air as Figure 1.
5.
Fill the eureka beaker with water.
6.
Set the apparatus as Figure 2.
7.
Then, lower the arm of the retort stand tied with the block gently.
8.
Let the block arise/sink in water.
9.
Record the weight of the block.
10.
Water will be displaced from eureka beaker into the other beaker.
11.
Record the mass of the displaced water in the beaker.
12.
Repeat the experiments for the other blocks.
BB101
P age |3
RESULT
a.
Mass of empty beaker = ________________ g
b.
ANALYSIS
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ERROR ANALYSIS
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BB101
P age |4
QUESTION
1.
Why do some objects :
a. float when placed in water
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b. sink when placed in water
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2.
From the experiment, which block has a greater bouyant force for it to float?
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CONCLUSION
1. __________________________________________________________________________
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2. __________________________________________________________________________
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3. __________________________________________________________________________
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BB101