Pressure exerted by gases

Question 1 Why makes a balloon get inflated when air is filled in it? Question 2 Why a bicycle tube get inflated when air is filled in it? All the gases exert pressure on the walls of the container. 1)Air is a mixture of gases. 2)All the gases are made up of tiny particles called…

Read More

Applications of atmospheric pressure

Question 1What type of pressure is involved in the filling of a liquid in a syringe? Question 2 What is a rubber sucker? Question 3 How does a rubber sucker works? Question 4 State few uses of rubber sucker? Question 5 How does a syringe work? Question 6 What is a syringe? Question 7 How…

Read More

Pressure exerted by liquids

Question 1 How does the pressure of a liquid depends on its depth.Explain? Question 2 What conclusion do you get from the observation that a fountain of water is created at the leaking joint of pipes of the main water supply line? Question 3 Liquids exert pressure on the wall of contain.Explain? Question 4 Liquid…

Read More

Atmospheric pressure

Question 1 Define the term atmosphere? Question 2 What is atmospheric pressure? Question 3 What is the SI unit of atmospheric pressure? Question 4 What substance present in our body to balances the atmospheric pressure acting on us? Question 5 Where will be the atmospheric pressure be greater-at ground level or at the top of…

Read More

Pressure

Question 1 What is pressure? Question 2 Define the SI unit of pressure? Question 3 Why does a sharp knife cut objects more effectively than a blunt knife? Question 4 Why wooden sleepers are kept below the railway line? Question 5 Why a wide steel belt is provided over the wheels of an army tank?…

Read More

Non-contact forces

Question 1 What are non-contact forces.Give few examples? Question 2 When a plastic pen is rubbed in dry hair, it attracts tiny pieces of paper.Which force is involved in this process? Question 3 A small piece pulls iron nails from a distance.Which force is involved in this process? Question 4 An inflated balloon was pressed…

Read More

Contact force

Question 1 What are contact forces? Question 2 Name 2 types of contact forces? Question 3 Name the force which always opposes motion? Question 4 Which force makes a rolling ball stop of its own? Question 5 What is muscular force.Give example? Question 6 What is frictional force.Give example? Question 7 Name the type of…

Read More

Effects of Force

Question 1 Give examples where force moves a stationary object? Question 2  Give examples where force stops a moving object? Question 3 Give examples where force can change the speed of moving object? Question 4 Give examples where force can change the direction of moving object? Question 5 Give examples where force can change the shape…

Read More

Force has magnitude as well as direction

Question 1 Define the term Newton? Question 2 What is the unit of force? Question 3 What happen if the two forces applied to an object act in the same direction.Explain with example? Question 4 What happen if the two forces applied to an object act in the opposite direction.Explain with example? Question 5 What happen if…

Read More

Force is due to interaction

Question 1 What is meant by saying that force is due to an interaction? Question 2 Give an example to illustrate that force is due to an interaction? Interaction involves two objects.In  Interaction each object act in such a way as to have an effect on the other object. Interaction of one object with another…

Read More

Force

Question 1 Define the term force? Question 2 What is mean by direction of force? Question 3 State the various effects of force? Question 4 Give few examples where forces are used in our everyday action? Force 1)When an athlete wants to throw a very heavy ball during shot put contest so that it may…

Read More