Question

1. A noncontact force is a force which acts on an object without being physically in contact
with it. The most familiar example of a non contact force is gravity. It is the force of attraction
that exists among all bodies that have mass. The force of gravity acts on all objects. This force
acts on all of us all the time without us being aware of it.





1(a) Why does a coin fall to the ground when it slips off your hand?
1 (b) Is gravity a property of earth alone? Justify giving certain suitable examples.
1 © Is gravitational force the only attractive force in nature. Comment.
1(d) Adya combed her hair and kept the comb on her dressing table. She noticed that some
small pieces of paper lying nearby got stuck to the comb. She said that the pieces were
attracted due to gravitational pull of the comb. Is she right in this interpretation? Comment.

Answer 1

Answer:

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Explanation:

1a.Because of gravity and earth's magnetic force.

b.Gravity is not a property of the earth alone . In fact, every object in the universe exerts force on every other object. So , there is gravity on jupiter and other planets.

c.Gravitational force is always attractive in nature ace. to law of gravitation. But, Electromagnetic force may be attractive or repulsive depends upon nature of current or magnetic field around it.

d.