Q. 224.4( 16 Votes )
If a vacuum is created between two Magdeburg hemispheres joined together, they cannot be separated easily, What presses the hemispheres together ?
The two hemispheres pressed together when vacuum is created between them because air is pumped out of the interior which create the remarkable force between them to stick together.
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Give one example where force changes the shape of an object.Lakhmir Singh & Manjit Kaur - Science
If a vacuum is created between two Magdeburg hemispheres joined together, they cannot be separated easily, What presses the hemispheres together ?Lakhmir Singh & Manjit Kaur - Science
Two objects repel each other. This repulsion could be due toNCERT - Science Exemplar
What is force? State the various effects of force.Lakhmir Singh & Manjit Kaur - Science
Mention the necessary conditions for a force to come into play.All in One - Science
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
(a) To stretch the bow, the archer applies a force that causes a change in its __________.
(b) The force applied by the archer to stretch the bow is an example of __________ force.
(c) The type of force responsible for a change in the state of motion of the arrow is an example of a __________ force.
(d) While the arrow moves towards its target, the forces acting on it are due to __________ and that due to __________ of air.NCERT - Science