Q. 304.9( 13 Votes )

Fill in the following blanks with suitable words :

(a) To draw water 'from a well, we have to .............at the rope.

(b) If the two forces applied to an object are equal and act in opposite directions, the net force acting on the object will be ................

(c) Force could be a .............or a ...........

(d) Force has magnitude as well as ..............

(e) A force arises due to................between two objects.

(f) A charged body............an uncharged body towards it.

(g) The north pole of a magnet............the north pole of another magnet.

(h) Force acting on a unit area is called ..................

(i) The pressure exerted by a liquid ..........with depth.

(J) A drinking straw works on the existence of ...................pressure.

(k) Atmospheric pressure.............with increasing height.

Answer :

(a) To draw water 'from a well, we have to apply pull force at the rope.


To draw an object by applying force


(b) If the two forces applied to an object are equal and act in opposite directions, the net force acting on the object will be zero.


The force applied on the body are equal and opposite direction, force cancel out and net force is zero.


(c) Force could be a push or a pull.


A push or pull on an object is known as force.


(d) Force has magnitude as well as direction.


Force is a vector quantity and it depends on direction.


(e) A force arises due to interaction between two objects.


The interaction between two objects due to a force .


(f) A charged body attracts an uncharged body towards it.


Force attracts to each other of two objects when they are unlike charges.


(g) The north pole of a magnet repeals the north pole of another magnet.


Like poles of magnet repeal to each other’s.


(h)Force acting on a unit area is called Pressure.


(i) The pressure exerted by a liquid increases with depth.


Pressure = height x density of object x gravity


(J) A drinking straw works on the existence of atmospheric pressure.


The level of water rises from drinking straw due to atmospheric pressure.


(k) Atmospheric pressure decreases with increasing height.


Pressure is inversely proportional to height


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