Why does a block of wood held under water rise to the surface whe… - Vidyadip

Question

Why does a block of wood held under water rise to the surface when released?

✓

Answer

Because the weight of the block of wood is less than the weight of an equal volume of water. So when it is completely submerged in water, the upward buoyant force on it is greater than the downward gravitational force on it. Hence, the lock rises to the surface.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "One word answer." from Gravitation→Gravitation — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

What do we call those particles which are formed:
By the loss of electrons by atoms?

Name the property of any one of the components which can be used for separation the following mixture:
Salt and Camphor.

A piece of chalk can be broken into small particles by hammering but a piece of iron cannot be broken into small particles by hammering. Which characteristic of the particles of matter is illustrated by these observations?

Write the dispersed phase and dispersion medium present in foam. Give an example.

Name any one disease cause when the microbes target:

Liver.
Lungs.

An element X has a valency 1:
Is element X a metal or a non-metal?

Write the full form of IUPAC.

Name any two micronutrients, required by plants.

Mention any two causes of body's disease.

Name the process you would use to separate oil from water.