10th Science Chapter-01 Laws of Motion Creative One Mark Question and Answers Part-03
10th Science Chapter-01 Laws of Motion Creative One Mark Question and Answers Part-03
01.The relation below absolute unit of force on MKS and C.G.S system is 1 N=10^5 dyne
a) true
b) false
Correct answer
true
02.One kilogram force equals to
a) 9.8 dyne
b) 98 x 10 ^ 2 dyne
c) 98 x 10 ^ 4 dyne
d) 980 dyne
Correct answer
98 x 10 ^ 4 dyne
03.A luggage is usually tied with a rope on the roof of the buses due to_____
a) inertia of motion
b) inertia of direction
c) inertia of rest
d) momentum
Correct answer
inertia of motion
04.Inertia is a_____
a) property of matter
b) type of force
c) the speed of an object
d) none of the above
Correct answer
property of matter
05.The physical quantity which is the measure of inertia is
a) density
b) weight
c) force
d) mass
Correct answer
mass
06.The law that a qualitative definition of force is ----_______
a) Newton's II law
b) Newton's III law
c) newton's I law
d) Law of gravitation
Correct answer
newton's I law
07.plotting a graph for momentum on the X-axis and time on Y-axpmm-is. slope of momentum - time graph gives
a) Impulsive force
b) Acceleration
c) Force
d) Rate of force
Correct answer
Force
08.Physics that deals with the effect of force on bodies is
a) Kinematics
b) Dynamics
c) Statics
d) Mechanics
Correct answer
Mechanics
09.Force of action and reaction never cancel each other as they are acting at different bodies
a) true
b) false
Correct answer
10.In free fall under gravity a,body appeals to be weightless
a) true
b) false
Correct answer
true
11.To project the rockets which of the following principal (s) is \(are) required ?
a) Newton's third law of motion
b) law of conservation of linear momentum
c) Newton 's law of gravitation
d) both a&c
Correct answer
both a&c
12.The resultant of action & reaction force is _____
a) greater than zero
b) less than zero
c) zero
d) ore
Correct answer
zero
13._______ is an example for non -contact force
a) magnetic
b) frictional
c) rolling ball
d) none
Correct answer
magnetic
14..The momentum of a heavy object at rest will be_____
a) large
b) infinity
c) zero
d) small
Correct answer
zero
15.If the Earth shrinks to 50% of its real radius its mass remaining the same ,the weight of a body on the Earth Will
a) decrease by 50%
b) increase by 50%
c) decrease by 25%
d) increase by 300%
Correct answer
decrease by 25%
