1 : When we kick a stone, we get hurt. This is due to:
1 : (a) inertia
2 : (b) velocity
3 : (c) momentum
4 : (d) reaction
2 : Which of the following is a non-contact force?
1 : a)friction
2 : b)air restance
3 : c)electrostatic force
4 : d) Tension in the string
3 : A ball with initial momentum p hits a solid wall and bounces back with the same velocity. Its momentum p ^ prime prime collision will be:
1 : a)p=p
2 : b)p=-p
3 : c)p=2p
4 : d)p=-2p
4 : A lubricant is usually introduced friction. The lubricant: between two surfaces to decrease
1 : (a) decreases temperature
2 : (b) acts as ball bearings
3 : (c) prevents direct contact of the surfaces
4 : (d) provides rolling friction
5 : An object will continue its motion with constant acceleration until:
1 : (a) the resultant force on it begins to decrease.
2 : (b) the resultant force on it is zero.
3 : (c) the resultant force on it begins to increase.
4 : D)the resultant force is at right angle to its tangential velocity.
6 : An object with a mass of 5 kg moves at constant velocity of 10 m s¹. A constant force then acts for 5 seconds on the object and gives it a velocity of 2 ms in the opposite direction. The force acting on the object is:
1 : a)5n
2 : b)-10n
3 : c)-12n
4 : d)-15n
7 : Conservation of linear momentum is equivalent to:
1 : a)Newton,s first law of motion
2 : b) newton,s second law of motion
3 : c)newton,s third law of motion
4 : d)non of these
8 : A large force acts on an object for a very short interval of time. In this case, it is easy to determine:
1 : (a) magnitude of force
2 : (b)time interval
3 : (c) product of force and time
4 : (d)none of these
9 : A particle of mass m moving with a velocity v collides with another particle of the same mass at rest. The velocity of the first particle after collision is:
1 : a)v
2 : b)-v
3 : c)0
4 : d)-1/2
10 : Force experienced
bay rope is :
1 : Tension
2 : Elastic
3 : Normal
4 : Air resistance
11 : What is the of G if F = G X m1m2/r2
1 : 6.67x10^10Nm^2 kg^-2
2 : 6.67x10^10Nm^2 kg^-2
3 : 6.67x10^-11 Nm^2
kg-^2
4 : 6.67x10^9Nm^2
kg-2
12 : An apple falling from a tree is an example of :
1 : Gravitational force
2 : Magnetic force
3 : Elastic force
4 : Weak and strong force
13 : Forces is not a contact force:
1 : Drag
2 : Thrust
3 : Elastic
4 : Gravitational
14 : Which force is responsible for the distergration of nucleus:
1 : Strong nuclear
2 : Electromagnet force
3 : Gravitation force
4 : Weak nuclear force
15 : Newton was born
in :
1 : January 5, 1643
2 : January 6,1643
3 : January 4,1643
4 : January 3,1643
16 : A Pakistani
Scientists Dr. Abduls Salam along with Sheldon Glashow and Steven Weinberg
were awarded in :
1 : 1980
2 : 1981
3 : 1970
4 : 1979
17 : The unit of
force is called:
1 : Meter
2 : Newton
3 : Newton meter
4 : Kilogram
18 : Which of the following relation is correct?
1 : F=-ma
2 : F=m-a
3 : F=ma
4 : F=ma
19 : 1 Newton = _________
1 : 1 kgms-2
2 : 1 kmgs
3 : 1 kgm-1s-1
4 : 1 kg -1m-1s-1
20 : The force between two object which are not is physical
contact in :
1 : Contact
2 : Friction
3 : Non-contact
4 : Drag
21 : The SL unit balance is used to measure:
1 : Ns
2 : Ns
3 : N
4 : kg
22 : Spring balance is used to measure:
1 : Temperature
2 : Weight
3 : Mass
4 : Length
23 : A mass of 6 kg moving with acceleration of 2ms-2
force acting on it is:
1 : 12N
2 : 10N
3 : 8N
4 : 3N
24 : Weigh is a :
1 : Vector
2 : Scalar
3 : Vector and scalar
4 : None of these
25 : Sl unit of mass is :
1 : 1 kg
2 : N
3 : ms^-1
4 : ms^-2
26 : Inertia depend upon:
1 : Mass
2 : Velocity
3 : Displacement
4 : Time
27 : Law of inertia
is also known as:
1 : First law of motion
2 : Second law of motion
3 : Third law of motion
4 : Momentum
28 : The property of a body maintain in state of rest or in
a straight line is called:
1 : Force
2 : Inertia
3 : Momentum
4 : Impulse
29 : Rubbing hands is an example of:
1 : Inertia
2 : Momentum
3 : Impulses
4 : Friction
30 : According to law of conservation of momentum recoil
velocity of gas:
1 : v=mv/M
2 : V= M/m x v
3 : V=mV/M
4 : V= M/m X V
31 : Force exerted by a liquid on an object is :
1 : Friction
2 : Drag
3 : Thrust
4 : Elastic
32 : Force that appear the motion of the moving object sis
called:
1 : Momentum
2 : Friction
3 : Inertia
4 : Impulses
33 : How many types forces have:
1 : Four
2 : Two
3 : Three
4 : Five
34 : The product system, the momentum after collision of
two bodies?
1 : Momentum
2 : force
3 : Inertia
4 : torque
35 : In isolated system , the
momentum after collision of two bodies:
1 : Increases
2 : Constant
3 : Decrease
4 : Zero
36 : How many types friction have?
1 : two
2 : three
3 : four
4 : five
37 : SL unit of momentum is :
1 : Ns
2 : 1 kgms-1
3 : Newton
4 : both a,b
38 : Total change in momentum of the object is called:
