When a given force is applied on larger area of contact the pressure exerted by it:
  • increases
  • decreases
  • does not change
  • none of these
The pressure exerted by a liquid:
  • decreases with depth
  • does not change with depth
  • increases with depth
  • is different in different directions at he same depth
A force can:
  • change the state of motion
  • change the shape of an object
  • change the direction of motion of an object
  • all of these
Force is:
  • only push on an object
  • only pull on an object
  • either push or pull on an object
  • none of these
Liquids exert pressure on the walls of the container:
  • yes
  • no
  • can’t say
  • none of these
The pressure exerted by the air is known as:
  • air pressure
  • gas pressure
  • atmospheric pressure
  • none of these
When a rubber sucker is pressed on a plane surface than it sticks to the surface because of :
  • the pressure exerted by us
  • the air sucked by rubber
  • the pressure of atmosphere acting on it
  • none of these
The instrument used of measure atmospheric pressure is:
  • mercury barometer
  • manometer
  • pressure meter
  • none of these
The force exerted on a normal human being due to atmospheric pressure is:
  • 2 x 104N
  • 2 x 105N
  • 2 x 106N
  • none of these
The weight of air that every square centimetre of any surface carries is:
  • 1 kg
  • 10 kg
  • 1 gm
  • 100 kg
When bicycle tube is punctured than:
  • it bursts
  • air escapes very fast
  • air escapes slowly
  • none of these
We are not crushed under the weight of air because:
  • air has no weight
  • the pressure inside our bodies is equal to atmospheric pressure
  • the pressure inside our bodies is more than atmospheric pressure
  • none of these
The non-contact force is:
  • magnetic force
  • electrostatic force
  • force of gravity
  • all of these
A boat comes to rest if we stop rowing it due to:
  • gravitation force
  • force of friction
  • muscular force
  • none of these
Which of the following is contact force:
  • force of gravity
  • magnetic force
  • force of friction
  • electrostatic force
Pressure =
  • force/area
  • force x area
  • area/force
  • none of these
Knives, needles, saws are made sharp or pointed to:
  • decrease pressure
  • can’t say
  • increase pressure
  • none of these
The pressure with the height of the liquid column.
  • increase
  • remains same
  • decrease
  • none of these
By decreasing the contact area the pressure:
  • is decreased
  • remain same
  • is increased
  • none of these
The unit of pressure is:
  • Newton
  • Newton/metres
  • Newton metres
  • Newton/metre
The instrument used to measure pressure of liquids is:
  • barometer
  • manometer
  • pressure meter
  • none of these
When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to:
  • pressure of water
  • gravity of the earth
  • shape of rubber bulb
  • atmospheric pressure
Pushing a rock from a hill top is an example of:
  • muscular force
  • magnetic force
  • frictional force
  • electrostatic force
Under which condition can a moving object charge its direction:
  • by reducing friction
  • by increasing friction
  • by applying force
  • by not applying force
A stone thrown with a catapult (Gulal) falls back on the ground because :
  • the muscles apply force
  • the stone applies force
  • the earth exerts force
  • the catapult exerts force
The SI unit of force is:
  • kilogram
  • gram
  • newton
  • none of these
A man walking on the street slips on a banana skin because:
  • it is sticky
  • his foot crushes it
  • at that point there is very little friction
  • all of these.
between his shoe and the ground In desert areas, a camel can walk very easily as compared to horse because it has:
  • lesser weight
  • broader feet
  • smaller feet
  • heavier body
Force is a
  • Push
  • Push or Pull
  • Pull
  • Neither push nor pull
The pressure at the bottom of the tank containing a liquid does not depend on
  • Area of the bottom surface
  • Nature of the liquid
  • Height of the liquid column
  • Acceleration due to gravity
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