ARCHIMEDES
UPTHRUST = LIQUID DISPLACED
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Weigh a Block in Water
0
2
4
6
8
10
block
water hata (4 N)
Air:
10 N
Water:
Loss =
upthrust
10 N
weight in air
weight in water
upthrust
1. Archimedes Principle
Upthrust = weight of the liquid displaced
Loss in weight = 4 N = weight of the water
2. Float or Sink?
Upthrust > Weight → floats (wood, ship)
Upthrust < Weight → sinks (stone)
3. Remember
A ship is made of iron, yet it floats
because it displaces a lot of water
MATRIC PHYSICS · PROPERTIES OF MATTER · PUNJAB BOARDS
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