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law gives the idea of ……… .
(2) By Newton’s second law , the acceleration is directly proportional to ……… .
(3) Newton’s third law express the idea of ………. .
(4) Action force and reaction force cannot ……… out each other.
(5) Force has both magnitude and ……. .
(6) Force is a ……… quantity.
(7) The SI unit for force is ……….. .
(8) Mass is a measure of ………. .
(9) The attracting force of the earth acting on a body is defined as ……… .
(10) Weight is a …….. quantity.
(11) One newton is equal to ……. dyne.
(12) There are ……….. fundamental forces.
(13) The gravitational force is a ……… range force .
(14) Weight has both magnitude and ………. .
(15) The SI unit of weight is ……… .
(16) Mass is a scalar quantity and its SI unit is ……… .
(17) The gravitational force interact between ………. .
(18) The weight of 50 kg mass is ……….. .
(19) The nucleure is …….. .
(24) The total momentum of an …….. system is constant.
(25) The product of mass to velocity is ……… .
(26) The acceleration due to the gravitational force is called acceleration due to ……… .
(27) For free-fall motion, a body will fall onto the ground with constant ……… .
(28) At maximum height the final velocity is ……… .
(29) The moment of a force is a …….. quantity.
(30) The SI unit of the moment of force is ………. .

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