Q1: What is the value of large “G”?
Q2: What is the value of small “G“?
Q3: what is the unit of work?
Q4: What is joul?
Unit of work
Q5: 1m =100cm
Q6: Define Displacement?
(The shortest distance b/w any two point)
Q7: Difference b/w speed and velocity?
Distance couered in unite time is speed (scalar)
The rate of change of displacement is velocity (vector)
Q8: Define scalar and vector quantities describe by magnitude only is scalar?
eg: 2kg sugar
Quantities describe by magnitude and direction is vector e.g weight force
Q9: What is charge on proton?
Q10: What is mass of proton?
Q11: What is value of 1 radian
Q12: If the two same body fall to the ground the which body will reach to the ground first?
(Large body will reach the ground first)
Q13: 1st Law of motion:
“Newton’s laws of motion Newton’s laws of motion are three physical laws that, together, laid the foundation for classical mechanics. They describe the relationship between a body”
Source: 1st Law of motion – https://en.wikipedia.org
In the absence of any external force a body in rest will remain in rest and a body in motion will remain in motion with uniform speed
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 force and inversely proportional to mass of the body.
Q15: 3rd Low of motion:
To every action there is rteactions which are equal in magnitude but opposite in directin)
Q16. Define torgue?
(The turning effect of body is called torque)
The product of mass ad velocity is called momentum)
Q18: what is diddrent between mass & weight?
Q19: what is Nano second?
Small unit of time(10-9 sec)
Q20: Define ” distance” & Nit?
The length of actual path is distance, unit is matere)
Q21: Tell the name of Nobel gases?
Helim neon argon krypton, xenon rn
Q22: What is ampher?
The unit of current.
Q23: What current?
Flow of charges is called current.
Q24: What is mass?
The note of change of velocity is called acceleration.
W = mg
Equation of weight
Q27: Center of gravity?
The point at which the whole weight of. A body acts is called center of gravity.
Q28: What is atom?
Smallest particle of matter is called atom.
The combination of two or more atoms is called molecule e.g. H2, H2O etc.