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Laws of motion and gravitation
Laws of motion and gravitation
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Question 1 |
When a force is exerted on an object, it can change its_______
state | |
shape | |
position | |
all the above |
Question 2 |
Force is a _______ quantity.
vector | |
fundamental | |
scalar | |
none |
Question 3 |
An imbalanced force acts on a body, the body_________
must remain at rest | |
must be accelerated | |
must move with uniform velocity | |
move with uniform motion |
Question 4 |
The laws of motion of a body is given by _______
Galileo | |
Archimedes | |
Einstein | |
Newton |
Question 5 |
When two or more forces acting on a body and the body does not change its position then the forces are __________
imbalanced | |
mechanical force | |
balanced forces | |
none |
Question 6 |
From the following statements write down that which is not applicable to mass of an object:
It is a fundamental quantity | |
It is measured using physical balance | |
It is measured using spring balance | |
It is the amount of matter |
Question 7 |
Newton’s first law of motion defines_______
inertia | |
force | |
acceleration | |
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 _________
inertia | |
mass | |
weight | |
acceleration |
Question 9 |
When an object undergoes acceleration__________
its velocity increases | |
its speed increases | |
its motion is uniform | |
a force always acts on it |
Question 10 |
on what factor does inertia of a body depend?
volume | |
area | |
mass | |
density |
Question 11 |
Which of the following is a vector quantity?
speed | |
distance | |
momentum | |
time |
Question 12 |
The inability of the body to change its state is ________
force | |
momentum | |
acceleration | |
inertia |
Question 13 |
Force is measured based on _____
Newton’s first law | |
Newton’s second law | |
Newton’s third law | |
all the above |
Question 14 |
Force measures rate of change of______
acceleration | |
velocity | |
momentum | |
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 ____
force on the object | |
velocity | |
mass | |
inertia |
Question 16 |
The momentum of a given mass of a body is proportional to______
density | |
velocity | |
shape | |
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 ______
4000 N | |
400 N | |
800 N | |
200 N |
Question 18 |
The acceleration of a body is due to ______
balance force | |
electrostatic force | |
unbalanced force | |
conservative force |
Question 19 |
A force applied on an object is equal to
product of mass and velocity | |
sum of mass on the same body | |
product of mass and acceleration | |
sum of mass and acceleration |
Question 20 |
Action and reaction do not balance each other because they________
act on the same body | |
do not act on the same body | |
are in opposite direction | |
are unequal |
Question 21 |
Action and reaction forces are ______
equal in magnitude | |
equal in direction | |
opposite in direction | |
both equal in magnitude and opposite in direction |
Question 22 |
If mass of a body is doubled then its acceleration becomes_________
halved | |
doubled | |
thrice | |
zero |
Question 23 |
The principle involved in the working of a jet plane is ______
Newton’s first law | |
conservation of momentum | |
law of inertia | |
Newton’s second law |
Question 24 |
In a collision between a heavier body and a lighter body, which body experiences greater force?
heavier body | |
lighter body | |
both the body experience same force | |
both body exchange acceleration |
Question 25 |
A gun gets kicked back when a bullet is fired. It is a good example of Newton’s _______
gravitational law | |
first law | |
second law | |
third law |
Question 26 |
The law of conservation of momentum states that the momentum of a system _______
cannot be changed | |
is constant | |
can be changed by an external force | |
cannot be constant |
Question 27 |
When a bus starts suddenly the passengers in the standing position are pushed backwards, this action is due to ______
first law of motion | |
second law | |
third law of motion | |
conservation momentum |
Question 28 |
When a body at rest breaks into pieces of equal masses, then the parts will move_______
in same direction | |
along different directions | |
in opposite directions with unequal speeds | |
in opposite directions with equal speeds |
Question 29 |
The principle of function of a jet aeroplane is based on _______
first law of motion | |
second law of motion | |
third law of motion | |
all the above |
Question 30 |
Which of the following has the largest inertia?
pin | |
book | |
pen | |
table |
Question 31 |
An athlete runs a long path before taking a long jump to increase____
energy | |
inertia | |
momentum | |
force |
Question 32 |
Which is incorrect statement about the action and reaction referred to Newton’s third law of motion?
They are equal | |
They are opposite | |
They act on the same object | |
They act on two different objects |
Question 33 |
The tendency of a force to rotate a body about a given axis is called _______
turning effect of a force | |
moment of force | |
torque | |
all the above |
Question 34 |
The magnitude of the moment of force is ________
product of force and the perpendicular distance | |
product of force and velocity | |
ratio of force to the acceleration | |
ratio of force to the perpendicular distance |
Question 35 |
If the force rotates the body in the anticlockwise direction, then the moment is called __________
clockwise moment | |
anticlockwise moment | |
couple | |
torque |
Question 36 |
Anticlockwise moment is ________
positive | |
negative | |
opposite | |
zero |
Question 37 |
Clockwise moment or torque is _______
zero | |
always one | |
negative | |
positive |
Question 38 |
Moment of force produces ______
acceleration | |
linear motion | |
velocity | |
angular acceleration |
Question 39 |
Two equal and opposite forces whose lines of action do not coincide are said to constitute a __________
couple | |
torque | |
unlike force | |
parallel force |
Question 40 |
couple produces_______
translator motion | |
rotator motion | |
translator as well as rotator motion | |
neither translator nor rotatory |
Question 41 |
_________ is an example of couple
opening or closing a tap | |
turning of a key in a lock | |
steering wheel of car | |
all the above |
Question 42 |
Force of attraction between any two objects in the universe is called _______
gravitational force | |
mechanical force | |
magnetic force | |
electrostatic force |
Question 43 |
Universal law of gravitation was given by _____
Archimedes | |
Aryabhatta | |
Kepler | |
Newton |
Question 44 |
The force of gravitation between two bodies does not depend on_________
heavy bodies only | |
small sized objects | |
light bodies | |
objects of any size |
Question 45 |
The weight of an object is _______
the quantity of matter it contains | |
its inertia | |
same as its mass | |
the force with which it is attracted by the earth |
Question 46 |
In vacuum, all freely falling objects have the same ________
speed | |
velocity | |
force | |
acceleration |
Question 47 |
The acceleration due to gravity _____
has the same value everywhere in space | |
has the same value everywhere on earth | |
varies with the latitude on earth | |
is greater on moon due to its smaller diameter |
Question 48 |
When an object is thrown up, the force of gravity ________
is opposite to the direction of motion | |
is in the same direction as direction of motion | |
decreases as it rises up | |
increases as it rises up |
Question 49 |
What happens to the value of ‘g’ as we go higher from surface of earth?
decreases | |
increases | |
no change | |
zero |
Question 50 |
At which place is the value of ‘g’ is zero?
at poles | |
at centre of the earth | |
at equator | |
above the earth |
Question 51 |
The weight of the body is maximum ________
at the centre of the earth | |
on the surface of earth | |
above the surface of earth | |
none of the above |
Question 52 |
A rock is brought from the surface of the moon to the earth, then its _______
weight will change | |
mass will change | |
both mass and weight will change | |
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?
because mass of moon is less | |
radius of moon is less | |
mass and radius of moon is large | |
mass and radius of moon is less |
Question 54 |
If the distance between two bodies is doubled, then the gravitational force between them is ________
halved | |
doubled | |
reduced to one-fourth | |
increased by one fourth |
Question 55 |
An artificial structure designed for humans to live and work in outer space is ______
space ship | |
space shuttle | |
space station | |
space probe |
Question 56 |
Which cryogen is legally purchasable throughout the world?
liquid helium | |
liquid hydrogen | |
liquid nitrogen | |
all the above |
Question 57 |
The issues that limit long term habitability in space station is ______
lack of gravity | |
very low recycling rates | |
relatively high radiation levels | |
all the above |
Question 58 |
The third country to launch a space station is _______
USA | |
France | |
India | |
China |
Question 59 |
The main achievement of Chandrayaan I is _______
presence of water molecules in moon | |
mapping and surveying | |
weather monitoring | |
telecommunication |
Question 60 |
The weak solar flares are detected by ______
Terrain Mapping Camera(TMC) | |
Lunar Laser Ranging Instrument (LLRI) | |
Chandrayaan I Imaging X-ray Spectrometer(CIXS) | |
Hyper Spectral Imager(HYSI) |
Question 61 |
The Terrain Mapping Camera has taken ________
signatures of aluminium and silicon | |
images of peaks and craters | |
images of large caves | |
images of the earth |
Question 62 |
For how much time is Chandrayan operated?
312 months | |
365 days | |
312 days | |
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 _______
1.5 N | |
30N | |
15N | |
150N |
Question 64 |
Which of the following is used for specially chilling and freezing applications?
liquid helium | |
liquid hydrogen | |
liquid ammonia | |
liquid nitrogen |
Question 65 |
The moment of force in clockwise direction is _______ the moment in the anticlockwise direction
equal to | |
lesser than | |
greater than | |
none |
Question 66 |
Which one of the following is scalar quantity?
momentum | |
moment of force | |
speed | |
velocity |
Question 67 |
Name the space station used for military and civilian purposes.
Sky lab | |
Mir | |
Tiangong 1 | |
Salyut |
Question 68 |
The space station Salyut was launched by _____
Soviet Union | |
United States | |
Japan | |
China |
Question 69 |
Name the space station to be launched by China.
Sky lab | |
Tiangong 1 | |
Mir | |
Salyut |
Question 70 |
To change the state or position of an object _______ force is essential.
balanced | |
imbalanced | |
electric | |
elastic |
Question 71 |
The acceleration in a body is due to______
balanced force | |
unbalanced force | |
electro static force |
Question 72 |
The physical quantity which is equal to the rate of change of momentum is _______
displacement | |
acceleration | |
force | |
impulse |
Question 73 |
The momentum of a massive object at rest is_______
very large | |
very small | |
zero | |
infinity |
Question 74 |
The weight of a person is 50kg. The weight of that person on the surface of the earth will be ________
50 N | |
35 N | |
380 N | |
490N |
Question 75 |
The freezing of biotechnology products like vaccines require ________ freezing system.
Helium | |
Nitrogen | |
Ammonia | |
Chlorine |
Question 76 |
Match the following
- Resultant of the forces is zero a. Law of conservation of momentum
- Newton’s first law b. Vector
- Force c. Quantitative definition of force
- Newton’s third law d. balanced force
- Newton’s second law e. Inertia
5 1 3 2 4 | |
2 1 5 3 4 | |
4 3 5 1 2 | |
1 4 2 3 5 |
Question 77 |
Match the following
- Liquid Helium a. Lunar Laser Ranging Instrument
- Sky lab b. Magnetic resonance imaging
- Liquid nitrogen c. lunar probe
- LLRI d. space station
- Chandrayaan-I e. Freezing
5 1 3 2 4 | |
4 1 5 2 3 | |
4 3 5 1 2 | |
1 4 2 3 5 |
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There are 90 questions to complete.