Exercises
Jharkhand Board Science Solutions for Exercises
Simple step-by-step solutions to Exercises questions of Force and Pressure from SCIENCE : CLASS VIII. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from Exercises with Hints & Solutions
Give two examples each of situations in which you push or pull to change the state of motion of objects.
To move a loaded trolley, we have to _____ it.
(Choose one of the following: leave/ pull/ jump on).
The north pole of a magnet _____ (repels/ attracts) the north pole of another magnet.
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).
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.
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.
A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad?
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
