MATHEMATICS, SCIENCE AND COMPUTER DEPARTMENT

BB101 - ENGINEERING SCIENCE LAB REPORT

EXPERIMENT 3

NAME MATRIX NOGROUP MEMBERS

TITLE

LECTURER’ S NAME

(TO BE FILLED UP BY LECTURER)DATE OF SUBMISSIONLECTURER’S COMMENTS

RUBRICITEM MARKS

4 3 2 11. Procedures

2. Participation

3. Diagrams

4. Data

5. Calculations

6. Analysis

7. Error Analysis

8. Questions

9. Conclusion

10. Submission Date

TOTAL

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MALAYSIAN POLYTECHNIC

P a g e | 2

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P a g e | 3

ARCHIMEDES’ PRINCIPLE

OBJECTIVETo determine the buoyant force from Archimedes’ Principle.

INFERENCEArchimedes` 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”.

HYPOTHESISThe buoyant force on an object is equal to the weight of the water displaced.

APPARATUS1. Retort stand -12. Spring balance /Balance -13. 3 Set of Block (Wood, Metal, Plastic) -14. Beaker -25. Eureka beaker -16. Scissor -17. String

PROCEDURES1. 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.

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P a g e | 4

RESULT

Mass of empty beaker = ________________ g

ANALYSIS

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ERROR ANALYSIS

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a

.

b

P a g e | 5

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

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2. __________________________________________________________________________

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3. __________________________________________________________________________

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