Question

explanation of activity 11.10 of class 8 science chapter number 11 Force and Pressure.​

Answer 1

Explanation:

poles of two magnets repel each other and unlike poles attract each other attraction or repulsion between objects can also be seen on other form of pull and push .magnet can exert a force on other magnet without being in contact with it. the force exerted by a magnet is an example of noncontact force . similarly the force exerted by a magnet on a piece of iron is also non contact force

Answer 2

Answer:

STEPS:

1) Take an empty plastic bottle or a cylindrical container.

2) Drill four holes all around near the bottom of the bottle.

3) Now fill the bottle with water.

OBSERVATION:

We observe that the different streams of water come out equally from the four holes and thus this indicates that liquids exert equal pressure at the same depth.