phychem st

a body is moving with constant velocity , its acceleration is _____ .
(10) _____ is the rate of change of velocity.
(11) The velocity of a body is decreasing is has _____ acceleration.
(12) The equation v ̅ =(v_0+v)/2 can be used when the body is moving with _____ acceleration.
(13) Displacement does not depend on the _____ travel.
(14)Speed is a _____ quantity.
(15) Velocity has both _____ and direction.

1. 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