Everyday Science MCQs: Water Pressure and Buoyancy

What happens when a hydrometer is placed in a liquid that is less dense than water?

1. It will sink completely.
2. It will float with more of its length submerged.
3. It will float above the water.
4. It will float without any part submerged.

Right Answer is: (B) It will float with more of its length submerged.

What is Archimedes’ Principle?

1. An object will float if it is lighter than the liquid.
2. An object loses weight equal to the weight of the water it displaces when submerged.
3. Objects will sink if they are denser than water.
4. Objects will float if they are made of metal.

Right Answer is: (B) An object loses weight equal to the weight of the water it displaces when submerged.

Which of the following statements is true about water pressure?

1. Water pressure increases as you go higher in the water.
2. Water pressure decreases as you go deeper into the water.
3. Water pressure is the same at all depths.
4. Water pressure is always zero.

Right Answer is: (A) Water pressure increases as you go higher in the water.