GTU MCQ Material, Best Physics GTU MCQ Quiz, GTU MCQ Mock Test Material, With Note Book PDF Download For Applied Physics Force And Motion
Applied Physics Chapter Force And Motion (Q&A)
1. A force of _______ acts when solid surfaces slide on each other.
Answer : Friction
2.
A force of ________ acts when solid surface slide across each other.
Answer : Friction
3.
SI unit of force is ______.
Answer : Newton
4.
The product of mass and velocity is called ________.
Answer : Momentum
5.
How much force is applied to object of mass 10kg to acceleration 5m/s ?
Answer : 50 N
6. Momentum
of the massive object which is at rest is __________.
Answer : Zero
7.
Newton's first law gives defination of ______.
Answer : Inertia
8.
The tendency of an object to presist it's state this known as _________.
Answer : Interia
9.
Gravitational force is due to __________.
Answer : Mass
10.
The total linear momentum of an isolated system remains constant. It is the
statement of __________.
Answer : Law of conservation of momentum
11.
15 N force is applied on an object having weigh of 3kg. How much acceleration
will be produced in it ?
Answer : 5 m/s²
12.
The law that states that every object maintaints constant velocity unless acted
on by an external force is..
Answer : N₁
13.
A person feels a jerk in the forward direction if a bus suddenly stops is due
to..
Answer : Inertia of motion
14.
If external force is acting on a body is zero then it's..
Answer : Velocity decreases
15.
What is the force is applied to object of mass 5kg to accelerate 3 m/s² ?
Answer : 15 N
16.
Momentum = __________________.
Answer : Mass × acceleration
17.
Which of the following have lowest Inertia ?
Answer : Bicycle
18. A
10.0 kg dog chasing a rabbit north at 6.0 m/s has a momentum of ____
Answer : 60 kg m/s
19.
When a force F is applied on an object of mass 1 kg. Velocity changes 20cm/s
per second find out value of force _____________ N.
Answer : 0.2
20.
A bullet of mass m with velocity V in horizontal direction inserts in a block
of mass M, steady on the friction less horizontal surface. Find the velocity of
them jointly.
Answer : `\frac{mv}{M+m}`
21.
A force is applied on a steady object of mass 1.5 kg for 0.5 S. After the force
stops acting , the object travels the distance 5 m in 2S. Hence, the magnitude
of the force will be -
Answer : 7.5 N
22.
An object of 40 kg moves in a straight line in horizontal direction under the
application of force. Velocity reduces from 5.0 ms⁻¹
to 2.0 ms⁻¹ in 6 seconds . Find out the force applied
on the object. How much distance it has travelled during this time.
Answer : 21m, -20N
23.
When force of 45 N is applied to an object of mass m, acceleration produced is
4.5 ms⁻². When same amount of force applied on
object of mass m the acceleration produced in it is 9.0 ms⁻².
find out the acceleration produced when same force is applied on both the
objects tied togather.
Answer : 3 ms⁻²
24.
A car of mass 1000 kg moves on a straight horizontal road with velocity 30m/s.
Driver applies bracks, after observing red traffic signal. The breaking force
is 4 KN, then-
01)
Find out deacceleration.
02)
What time it will to stop ?
03)
What will be the distance travelled by car during this motion ?
Answer : -4 ms⁻², 7.5 S, 112.5 m
25.
A solider shots bullet of mass 50 g with 1000 ms⁻¹
velocity. It he can have on his maximum 200 N force, how many bullets he can
shot within a second ?
Answer : 4
26.
Two spheres or 80 g mass travels toward each other with 5 ms⁻¹
velocity and after striking then travel in the opposite direction with the same
velocity. Find out moment of force of one sphere to other. Change of
momentum of each sphere is __________ .
Answer : 0.8 cm m/s⁻¹
27.
Two blocks of mass 6 kg and 2 kg are on a smooth surface touching each other.
It force of 2N is applied on 6 kg block so that the blocks togather, find out
acceleration on 2 kg block. the force applied the block is ________.
Answer : 0.25 ms⁻², 0.5 N
28.
Property of Inertia -
(a)
Force is required to maintain state of motion of a body.
(b)
No force is required to maintain steady of motion of a body.
(c)
Body depends on gravitational force.
(d)
None of the above.
Answer : No force is required to maintain steady of motion of a
body.
29.
1ˢᵗ law newton gives definition of _____.
Answer : Force
30.
Newton's 1ˢᵗ law does not give information regarding __________.
Answer : Magnitude of force
31.
Force is reason of producing _____.
Answer : Acceleration
32.
The physical quantity which is product of mass m and velocity v̅ is
_________ .
Answer : Momentum
33.
Momentum is_______.
Answer : Vector quantity
34.
What is the physical quantity, having SI unit of kgms⁻¹ ?
Answer : Momentum
35.
What constant force is applied on the object physical quantity remains constant
is..
Answer : Acceleration
36.
Force × time = _________ .
Answer : Momentum of force
37.
A car of mass 15000 kg moves in East with velocity 5 m/s, it's momentum is
_________ N.S.
Answer : 7500 NS
38.
The force required to stop a car of momentum 200 NS in 0.15 __________.
Answer : 2000 N
39.
If 24 N force produces 2 ms⁻² in an object, the mass of
object is _____.
Answer : 12 kg
40. A
force of 50 N produces acceleration of 10 ms⁻²
in a body. What is the required force to produce acceleration of 5 ms⁻².
Answer : 25 N
41.
A sportsman hits the ball of 500 kg coming with velocity 30 ms⁻¹
normal to bat, the velocity of ball after shot is 40 ms⁻¹
in opposite direction. Find the moment of force of bat.
Answer : 35 N
42.
In a collision of two objects, one object applies force 5 N on the other
object. What will be the force applied by other on first object.
Answer : -5 N
43. What
type of force are there when one body applied force on the other body ?
Answer : Action and reaction type
44. A
vacant truck of mass 10³ kg has speed of 72 km/h. Find out speed of truck full
of 10³ kg stones.
Answer : - 10 m/s
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