Classification based on bouyancy
Trending Questions
Q.
What are the laws of flotation? Give some illustrations.
Q.
Boats are designed in a ‘bottom-heavy’ way.
Q. The density of tap water is less than that of seawater. If an object is immersed completely in both one by one, what will its loss in weight be?
- Less in sea water.
- More in sea water.
- Equal in both the cases.
- Zero in seawater but not so in the case of tap water.
Q.
How does a ship float? what is the waterline of the ship?
Q.
What is a submarine? How is it like a fish in its action?
Q.
A ________ is a water tight boat and can travel underwater like a normal ship on the surface of the water.
Q. Most metals sink in water as they have density _______ water.
- same as that of
- lower than
- higher than
- comparable to
Q. Which of the following substance will float in water?
- Steel spoon
- Plastic ball
- Coloured pebbles
- Coin
Q. As a balloon rises in the air its volume increases and at the end, it acquires a stable height and cannot rise any further. State true or false.
- True.
- False.
Q.
Which among the following will float on water?
- Needle
- Iron nail
- Oil
- Stone
Q. Submarines use the principle of ‘neutral buoyancy’ to move in the water. State true or false.
- True
- False
Q.
Why is it easy to swim in sea than in a river?
Q.
Does a person experience same buoyancy while swimming in swimming pool or in sea?
