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Physics GK 10 - Floatation
1
2
3
4
5
1.
What happens when a ship enters a Sea from a river ?
It rises
It remains at the same level
sinks a little
None of the above
2.
A cardboard is placed on a glass of water, and a ten paise coin is placed on the cardboard. If the cardboard is flicked suddenly in the direction parallel to its surface, then the cardboard flies away, but the coin falls in the glass.
The behaviour of the coin can be explained by which among the following properties?
Momentum
Acceleration
Inertia
Friction
3.
A piece of Ice was tied with a string to a water bucket’s bottom, and the water bucket was filled with water with ice fully submerged in it. What would be the impact on the level of water when the ice melts away completely?
The level of water will go up
The level of water will go down
The level of water will remain unchanged
The level of water will first increase then come to the previous one
4.
In which of the following conditions, a Balloon filled with a gas such as Hydrogen will tend to rise up?
If the buoyant force exerted by the air on a balloon is greater than the weight of the balloon
If the buoyant force exerted by the air on a balloon is less than the weight of the balloon
If the buoyant force exerted by the air on a balloon is equal to the weight of the balloon
If the density of the air is greater than the density of the gas filled in balloon
5.
Who was the first to state the principle of floatation?
Isaac Newton
Archimedes
Aristotle
Galileo Galilei
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