Q1: Choose the correct answer: 1) Which of the following forces arises from dire
ID: 1375594 • Letter: Q
Question
Q1: Choose the correct answer: 1) Which of the following forces arises from direct physical contact between two objects? a) gravitational force b) frictional force c) Electrical force d) none of the mentioned 2) Which of the following forces represents a field force between two objects? a) gravitational force b) frictional force C) Elastic force d) none of the mentioned 3) If a nonzero net force is acting on an object, then the object is definitely a) at rest b) moving with a constant velocity c) being accelerated d)losing mass 4) The magnitude of the force of gravity acting on an object is: a) frictional force b) inertia c) weight d) mass A change in the force of gravity acting on an object will affect the object?s i) mass b) frictional force C) weight d) inertiaExplanation / Answer
(1) The frictional force is a contact force between two objects.
Correct option: (b)
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(2) In the given options, the field force is gravitational force. The gravitational force varies invesely
with square of the distance, means, the field of gravity extend upto some distance.
Correct option is (a)
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(3)
In acccordance with Newton's first law, in the absence of external force, the objects remains in the
same state ( rest / moving with constnat speed ) .If net force is zero, the state of objects doesn't change.
If net force is not zero, the object definitely accelerates.
Correct option is ( c )
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(4) The magnitude of force of gravity on an objects represents its weight
Correct option is ( c )
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(5) Mass is independent of location. It is constant everywhere.
If gravity changes, the weight of the object changes.
Correct option is ( c)
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