EXPERIMENT 2: ARCHIMEDES’ PRINCIPLE
OBJECTIVES
To determine the buoyant force from Archimedes’ Principle.
HYPOTHESIS
The buoyant force on an object is equal to the weight of the water displaced.
APPARATUS
Item
Quantity Item
Quantity
Retort stand
1
Eureka beaker
1
Spring balance / Balance
1
Scissor
1
3 Set of Block
1
String
1
(Wood, Metal, Plastic)
Beaker
2
PROCEDURES
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Weigh the mass of empty beaker.
Hang the spring balance at the arm of retort stand.
Tie the wooden block and hang to the spring balance.
Record the weight of the block in the air as Figure 2a.
Fill the Eureka beaker with water.
Set the apparatus as Figure 2b.
Then, lower the arm of the retort stand tied with the block gently.
Let the block arise/sink in water.
Record the weight of the block.
Water will be displaced from eureka beaker into the other beaker.
Record the mass of the displaced water in the beaker.
Repeat the above procedures by using the plastic and metal blocks
Figure 2a: the weight of the block in the air
Figure 2b: Apparatus of Archimedes Principle Experiment
DATA / RESULTS
Mass of empty beaker = ________ g
Table 2a
Weight of Block (N)
Type
of
Block
In the air T1 (N)
Trial 1
Trial 2
In the water T2 (N)
Average
Trial 1
Trial 2
Mass of
beaker with
displaced
water (g)
Mass of
Water
displaced
(g)
Average
Wood
Plastic
Metal
Table 2b:
Type of
Block
Weight of Water
displaced,
Wdisplaced (N)
Buoyant Force,
FB = T1-T2
% Error
=
𝑫𝒊𝒇𝒇𝒆𝒓𝒆𝒏𝒄𝒆 𝒃𝒆𝒕𝒘𝒆𝒆𝒏 𝑭𝑩 𝒂𝒏𝒅 𝑾𝒅𝒊𝒔𝒑𝒍𝒂𝒄𝒆𝒅
𝑭𝑩
× 𝟏𝟎𝟎%
Wood
Plastic
Metal
CONCLUSION
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