EASY
8th Jammu and Kashmir Board
IMPORTANT
Earn 100

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

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Important Questions on Force and Pressure

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT
Give two examples of situations in which applied force causes a change in the shape of an object.
EASY
8th Jammu and Kashmir Board
IMPORTANT
Give two examples each of situations in which you push or pull to change the state of motion of objects.
EASY
8th Jammu and Kashmir Board
IMPORTANT
To move a loaded trolley, we have to _____ it.
(Choose one of the following: leave/ pull/ jump on).
EASY
8th Jammu and Kashmir Board
IMPORTANT
The north pole of a magnet _____ (repels/ attracts) the north pole of another magnet.
EASY
8th Jammu and Kashmir Board
IMPORTANT
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. To stretch the bow, the archer applies a force that causes a change in its _____(shape/direction).
EASY
8th Jammu and Kashmir Board
IMPORTANT
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gap in the following statement.
The force applied by the archer to stretch the bow is an example of _____(contact/non-contact) force.
EASY
8th Jammu and Kashmir Board
IMPORTANT
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms.
muscular, contact, non-contact, gravity, friction, shape, attraction 

The type of force responsible for a change in the state of motion of the arrow is an example of a _____ force.

EASY
8th Jammu and Kashmir Board
IMPORTANT
In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in each case.
Squeezing a piece of lemon between the fingers to extract its juice.