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Laws of motion and gravitation

Winmeen WinmeenSeptember 2, 2018
0 499 Less than a minute

Laws of motion and gravitation

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Question 1
When a force is exerted on an object, it can change its_______
A
state
B
shape
C
position
D
all the above
Question 2
Force is a _______ quantity.
A
vector
B
fundamental
C
scalar
D
none
Question 3
An imbalanced force acts on a body, the body_________
A
must remain at rest
B
must be accelerated
C
must move with uniform velocity
D
move with uniform motion
Question 4
The laws of motion of a body is given by _______
A
Galileo
B
Archimedes
C
Einstein
D
Newton
Question 5
When two or more forces acting on a body and the body does not change its position then the forces are __________
A
imbalanced
B
mechanical force
C
balanced forces
D
none
Question 6
From the following statements write down that which is not applicable to mass of an object:
A
It is a fundamental quantity
B
It is measured using physical balance
C
It is measured using spring balance
D
It is the amount of matter
Question 7
Newton’s first law of motion defines_______
A
inertia
B
force
C
acceleration
D
both inertia and force
Question 8
An object cannot change the state of rest or motion, until any force is applied. This inability of the object is called _________
A
inertia
B
mass
C
weight
D
acceleration
Question 9
When an object undergoes acceleration__________
A
its velocity increases
B
its speed increases
C
its motion is uniform
D
a force always acts on it
Question 10
on what factor does inertia of a body depend?
A
volume
B
area
C
mass
D
density
Question 11
Which of the following is a vector quantity?
A
speed
B
distance
C
momentum
D
time
Question 12
The inability of the body to change its state is ________
A
force
B
momentum
C
acceleration
D
inertia
Question 13
Force is measured based on _____
A
Newton’s first law
B
Newton’s second law
C
Newton’s third law
D
all the above
Question 14
Force measures rate of change of______
A
acceleration
B
velocity
C
momentum
D
distance
Question 15
When a net force acts on an object, the object will be accelerated in the direction of force with an acceleration proportional to ____
A
force on the object
B
velocity
C
mass
D
inertia
Question 16
The momentum of a given mass of a body is proportional to______
A
density
B
velocity
C
shape
D
volume
Question 17
A bus of 800 kg increases its velocity from 5 m/s to 10 m/s within 10 seconds by a constant force. The magnitude of the applied force is ______
A
4000 N
B
400 N
C
800 N
D
200 N
Question 18
The acceleration of a body is due to ______
A
balance force
B
electrostatic force
C
unbalanced force
D
conservative force
Question 19
A force applied on an object is equal to
A
product of mass and velocity
B
sum of mass on the same body
C
product of mass and acceleration
D
sum of mass and acceleration
Question 20
Action and reaction do not balance each other because they________
A
act on the same body
B
do not act on the same body
C
are in opposite direction
D
are unequal
Question 21
Action and reaction forces are ______
A
equal in magnitude
B
equal in direction
C
opposite in direction
D
both equal in magnitude and opposite in direction
Question 22
If mass of a body is doubled then its acceleration becomes_________
A
halved
B
doubled
C
thrice
D
zero
Question 23
The principle involved in the working of a jet plane is ______
A
Newton’s first law
B
conservation of momentum
C
law of inertia
D
Newton’s second law
Question 24
In a collision between a heavier body and a lighter body, which body experiences greater force?
A
heavier body
B
lighter body
C
both the body experience same force
D
both body exchange acceleration
Question 25
A gun gets kicked back when a bullet is fired. It is a good example of Newton’s _______
A
gravitational law
B
first law
C
second law
D
third law
Question 26
The law of conservation of momentum states that the momentum of a system _______
A
cannot be changed
B
is constant
C
can be changed by an external force
D
cannot be constant
Question 27
When a bus starts suddenly the passengers in the standing position are pushed backwards, this action is due to ______
A
first law of motion
B
second law
C
third law of motion
D
conservation momentum
Question 28
When a body at rest breaks into pieces of equal masses, then the parts will move_______
A
in same direction
B
along different directions
C
in opposite directions with unequal speeds
D
in opposite directions with equal speeds
Question 29
The principle of function of a jet aeroplane is based on _______
A
first law of motion
B
second law of motion
C
third law of motion
D
all the above
Question 30
Which of the following has the largest inertia?
A
pin
B
book
C
pen
D
table
Question 31
An athlete runs a long path before taking a long jump to increase____
A
energy
B
inertia
C
momentum
D
force
Question 32
Which is incorrect statement about the action and reaction referred to Newton’s third law of motion?
A
They are equal
B
They are opposite
C
They act on the same object
D
They act on two different objects
Question 33
The tendency of a force to rotate a body about a given axis is called _______
A
turning effect of a force
B
moment of force
C
torque
D
all the above
Question 34
The magnitude of the moment of force is ________
A
product of force and the perpendicular distance
B
product of force and velocity
C
ratio of force to the acceleration
D
ratio of force to the perpendicular distance
Question 35
If the force rotates the body in the anticlockwise direction, then the moment is called __________
A
clockwise moment
B
anticlockwise moment
C
couple
D
torque
Question 36
Anticlockwise moment is ________
A
positive
B
negative
C
opposite
D
zero
Question 37
Clockwise moment or torque is _______
A
zero
B
always one
C
negative
D
positive
Question 38
Moment of force produces ______
A
acceleration
B
linear motion
C
velocity
D
angular acceleration
Question 39
Two equal and opposite forces whose lines of action do not coincide are said to constitute a __________
A
couple
B
torque
C
unlike force
D
parallel force
Question 40
couple produces_______
A
translator motion
B
rotator motion
C
translator as well as rotator motion
D
neither translator nor rotatory
Question 41
_________ is an example of couple
A
opening or closing a tap
B
turning of a key in a lock
C
steering wheel of car
D
all the above
Question 42
Force of attraction between any two objects in the universe is called _______
A
gravitational force
B
mechanical force
C
magnetic force
D
electrostatic force
Question 43
Universal law of gravitation was given by _____
A
Archimedes
B
Aryabhatta
C
Kepler
D
Newton
Question 44
The force of gravitation between two bodies does not depend on_________
A
heavy bodies only
B
small sized objects
C
light bodies
D
objects of any size
Question 45
The weight of an object is _______
A
the quantity of matter it contains
B
its inertia
C
same as its mass
D
the force with which it is attracted by the earth
Question 46
In vacuum, all freely falling objects have the same ________
A
speed
B
velocity
C
force
D
acceleration
Question 47
The acceleration due to gravity _____
A
has the same value everywhere in space
B
has the same value everywhere on earth
C
varies with the latitude on earth
D
is greater on moon due to its smaller diameter
Question 48
When an object is thrown up, the force of gravity ________
A
is opposite to the direction of motion
B
is in the same direction as direction of motion
C
decreases as it rises up
D
increases as it rises up
Question 49
What happens to the value of ‘g’ as we go higher from surface of earth?
A
decreases
B
increases
C
no change
D
zero
Question 50
At which place is the value of ‘g’ is zero?
A
at poles
B
at centre of the earth
C
at equator
D
above the earth
Question 51
The weight of the body is maximum ________
A
at the centre of the earth
B
on the surface of earth
C
above the surface of earth
D
none of the above
Question 52
A rock is brought from the surface of the moon to the earth, then its _______
A
weight will change
B
mass will change
C
both mass and weight will change
D
mass and weight will remain the same
Question 53
Why is the acceleration due to gravity on the surface of the moon is lesser than that on the surface of earth?
A
because mass of moon is less
B
radius of moon is less
C
mass and radius of moon is large
D
mass and radius of moon is less
Question 54
If the distance between two bodies is doubled, then the gravitational force between them is ________
A
halved
B
doubled
C
reduced to one-fourth
D
increased by one fourth
Question 55
An artificial structure designed for humans to live and work in outer space is ______
A
space ship
B
space shuttle
C
space station
D
space probe
Question 56
Which cryogen is legally purchasable throughout the world?
A
liquid helium
B
liquid hydrogen
C
liquid nitrogen
D
all the above
Question 57
The issues that limit long term habitability in space station is ______
A
lack of gravity
B
very low recycling rates
C
relatively high radiation levels
D
all the above
Question 58
The third country to launch a space station is _______
A
USA
B
France
C
India
D
China
Question 59
The main achievement of Chandrayaan I is _______
A
presence of water molecules in moon
B
mapping and surveying
C
weather monitoring
D
telecommunication
Question 60
The weak solar flares are detected by ______
A
Terrain Mapping Camera(TMC)
B
Lunar Laser Ranging Instrument (LLRI)
C
Chandrayaan I Imaging X-ray Spectrometer(CIXS)
D
Hyper Spectral Imager(HYSI)
Question 61
The Terrain Mapping Camera has taken ________
A
signatures of aluminium and silicon
B
images of peaks and craters
C
images of large caves
D
images of the earth
Question 62
For how much time is Chandrayan operated?
A
312 months
B
365 days
C
312 days
D
96 days
Question 63
A body of mass 10 kg increases its velocity from 2 m/s to 8 m/s within 4 second by the application of a constant force. The magnitude of the applied force is _______
A
1.5 N
B
30N
C
15N
D
150N
Question 64
Which of the following is used for specially chilling and freezing applications?
A
liquid helium
B
liquid hydrogen
C
liquid ammonia
D
liquid nitrogen
Question 65
The moment of force in clockwise direction is _______ the moment in the anticlockwise direction
A
equal to
B
lesser than
C
greater than
D
none
Question 66
Which one of the following is scalar quantity?
A
momentum
B
moment of force
C
speed
D
velocity
Question 67
Name the space station used for military and civilian purposes.
A
Sky lab
B
Mir
C
Tiangong 1
D
Salyut
Question 68
The space station Salyut was launched by _____
A
Soviet Union
B
United States
C
Japan
D
China
Question 69
Name the space station to be launched by China.
A
Sky lab
B
Tiangong 1
C
Mir
D
Salyut
Question 70
To change the state or position of an object _______ force is essential.
A
balanced
B
imbalanced
C
electric
D
elastic
Question 71
The acceleration in a body is due to______
A
balanced force
B
unbalanced force
C
electro static force
Question 72
The physical quantity which is equal to the rate of change of momentum is _______
A
displacement
B
acceleration
C
force
D
impulse
Question 73

The momentum of a massive object at rest is_______

A
very large
B
very small
C
zero
D
infinity
Question 74
The weight of a person is 50kg. The weight of that person on the surface of the earth will be ________
A
50 N
B
35 N
C
380 N
D
490N
Question 75
The freezing of biotechnology products like vaccines require ________ freezing system.
A
Helium
B
Nitrogen
C
Ammonia
D
Chlorine
Question 76
Match the following
  1. Resultant of the forces is zero    a. Law of conservation of momentum
  2. Newton’s first law                          b. Vector
  3. Force                                                c. Quantitative definition of force
  4. Newton’s third law                   d. balanced force
  5. Newton’s second law               e. Inertia
A
5 1 3 2 4
B
2 1 5 3 4
C
4 3 5 1 2
D
1 4 2 3 5
Question 77
Match the following
  1. Liquid Helium         a. Lunar Laser Ranging Instrument
  2. Sky lab                             b. Magnetic resonance imaging
  3. Liquid nitrogen          c. lunar probe
  4. LLRI                          d. space station
  5. Chandrayaan-I           e. Freezing
A
5 1 3 2 4
B
4 1 5 2 3
C
4 3 5 1 2
D
1 4 2 3 5
Question 78
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A
B
B
C
C
D
D
Question 79
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Question 80
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D
Question 81
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Question 82
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Question 83
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Question 84
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Question 85
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Question 86
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Question 87
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Question 88
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D
Question 89
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A
B
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C
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Question 90
A
A
B
B
C
C
D
D
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There are 90 questions to complete.
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Winmeen WinmeenSeptember 2, 2018
0 499 Less than a minute
Winmeen

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