Page 104 - Physics
P. 104
Physics for Secondary Schools
Therefore,
Apparent loss in weight = Actual weight – Apparent weight of body in fl uid.
= Weight of the displaced fl uid
= Upthrust
Thus, Upthrust = Apparent loss in weight.
Acti vity 5.2
Aim: To determine the apparent loss in weight of objects immersed in water.
Materials: Measuring cylinder, spring balance, solid objects such as stones, water,
string
Procedure
1. Tie the stone using a string and measure its weight in air using a spring balance
as shown in Figure 5.4. Record this weight as w 1 .
Spring balance
Spring balance
Stone in air
air
Stone in water
Figure 5.4
98
Student’s Book Form One
Physics Form 1 Final.indd 98 16/10/2024 20:56
