1) If the direction of force is opposite to the direction of motion speed of body decreases. a) Correct b) Incorrect 2) A force cannot change the shape of an object. a) Correct b) Incorrect 3) Unbalanced forces acting in the same direction combine by subtraction. a) Correct b) Incorrect 4) Force has both magnitude as well as direction. a) Correct b) Incorrect 5) Force has only magnitude but no direction. a) Correct b) Incorrect 6) Net force is zero when unbalanced forces acts on the body. a) Correct b) Incorrect 7) Mass and change in speed of an object determine the magnitude of the force needed. a) Correct b) Incorrect 8) A ball thrown upwards comes down due to Gravitational force. a) Correct b) Incorrect 9) Expansion of lungs when we inhale and exhale during breathing is an example of Gravitational force. a) Correct b) Incorrect 10) SI unit of force is metre. a) Correct b) Incorrect 11) Gravitational force is an example of a contact force. a) Correct b) Incorrect 12) Net force is zero when balanced forces acts on a body. a) Correct b) Incorrect 13) Balanced forces are equal and opposite. a) Correct b) Incorrect 14) Greater the applied force, Lesser is the change in the speed. a) Correct b) Incorrect 15) A force may change the direction of a moving object. a) Correct b) Incorrect

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