FORCES

Fill in the blanks.

(1) Newton’s first 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 nuclear force is a ……. range force.

(20) The ratio of mass to volume is defined as ……… .

(21) The density of ice is ……….. than that of water.

(22) The symbol of density is ρ and it is a …….. quantity.

(23) The SI unit for pressure 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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