1st law of motion
Q13: 1st law of motion.
In the absence of any eternal a body in rest will remain in rest and a body in motion will
Q14: 2nd law of motion:
Continue it motion also when a net force is applied on a body it produces acceleration in that body which is directly proportional to applied.
Q14: 3rd low of motion:
(Force and inversely proportional to the mass of that body)
(To every action there is reactions which are equal in magnitude but opposite in direction)
Q15: Define torgue?
(The turning effect of a body is called torque)
Q17: Moment um?
(The producer of mass and velocity is called momentum)
Q18: What is different b/w mass & weight?
Q19: What is Nano second?
(Small unit of time (10-9sec))
Q20: Define “Distance”& unit?
(The length of actual path is Distance, unit is matere)
26: Tell the name of Nobel gases ?
Ans: Helium neon argon krypton, xenon Rn
Q27: What is ampher?
(The unit of current)
28: What current?
(Flow of charges is salled current)
29: What is mass?
(The note of change of velocity is called acceleration)
(Equation of weight)
32: Center of gravity?
(The point at which the whole weight of)
Ans: a body acts is called center of gravity)
Q33: What is atom?
(Smallest particle of matter is called atom)
Q34: What is macule?
(The combustion of two or more atoms is called molecule
E.g. H2, H2O etc.)