English Medium Class 9 - CBSE Question Bank Solutions for Science

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In fluids (liquids and gases), pressure acts in....................directions, and pressure.................as the depth increases. 

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In order to sink in a fluid, the density of an object must be .................. than the ................ of the fluid. 

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If the area of a snow shoe is five times....................... than the area of an ordinary shoe, then the pressure of a snow shoe on the snow is five times............... 

What are fluids ?  Name two common fluids.

Name two common fluids.

How are sol, solution and suspension different from each other?

Is displacement a scalar quantity?

A particle is moving in a circular path of radius r. The displacement after half a circle would be :

The numerical ratio of displacement to distance for a moving object is :

In which of the following cases of motion, the distance moved and the magnitude of displacement are equal?

If the displacement of an object is proportional to the square of time, then the object is moving with :

Give one example where a force stops a moving body .

When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :

When we talk of a force acting on a body, it usually means :

If we release a magnet held in our hand, it falls to the ground. The force which makes the magnet fall down is an example of :

When a rubber balloon held between the hands is pressed, its shape changes. This happens because :

Which of the following effect cannot be produced by an unbalanced force acting on a body?

A boy of mass 50 kg standing on ground exerts a force of 500 N on the ground. The force exerted by the ground on the boy will be :

A fielder pulls his hands backwards after catching the cricket ball. This enables the fielder to :