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Physics Free Online Test
1. A mentel plate with a circuler hole at the centre is heated
increase- increase
2. The amount of matter in a ball of steel its
mass- mass
3. The dimension MLT-2 corresponds to
force- force
4. The point where total mass of a body is supposed to be concentrated is known as
centre of mass- centre of mass
5. Which of the following is a scaler quantity ?
electrostatic potential- electrostatic potential
6. To open a door easily , the handle should be fixed
none of these- none of these
7. How much mechinical work must be done to completly melt 1 gram of ice at 0deegree c
80j- 80j
8. the type of mirror used in automo-biles to see the traffic on the rear side is
conver- conver
9. When water freezes its density
decreases- decreases
10. A stone is dropped from the roo of a ground
just before it touches the ground- just before it touches the ground
11. The motion of a body that repeats itself after a regular interval of time is
an aperidic motion- an aperidic motion
12. One nanometer is equal to meters
10 raised the power (-9)- 10 raised the power (-9)
13. Measurment means the comparison of an unknown quantity with some known fixed quantity called a
unit- unit
14. The apparent weight of a man in a lift is less the real weight when
the lift is going down an accelration- the lift is going down an accelration
15. An example of a solution of liquid in solid is
jelly- jelly
16. Ozone layer above the surface of earth provides ashield against
ultra -vilot rays- ultra -vilot rays
17. A person can jump higher on the moon 's surfacce than on the earth becouse
the acceration due to gravity in moon is smaller than that on the earth- the acceration due to gravity in moon is smaller than that on the earth
18. During motion of an object along a straight line, the change in velocity of the object for any interval is zero .
uniform- uniform
19. Flywheel is an importaant part of a steam engine because it :
helps the engine in keeping the speed unifrom- helps the engine in keeping the speed unifrom
20. Water has maximum density at
4degre c- 4degre c
21. Two vectors are said to be equal if
both magnitude and directions are some- both magnitude and directions are some
22. Amount of water vapour (gaseous )in a given volume of air (cubic metre )is known as:
absolute humidity- absolute humidity
23. Kepler's low of planetar motion states that the square of the time period is proportional to the
cube of the semi-major axis- cube of the semi-major axis
24. If ice floating on water in a vessel melts the water level in the vessel
does not change- does not change
25. A man standing at the top of a tower has two sphere A downwards and throws sphere b horizontally at the same time
both the sphere will reach the ground simultaneously .- both the sphere will reach the ground simultaneously .
26. The washing machine works on the principle of
centrifugation- centrifugation
27. How many watts are there in a metric horse power
736- 736
28. The motion of the wheels of a bullock-cart while moving on the road is an example of
Translatory and rotatory motion- Translatory and rotatory motion
29. Which of the following properties is generally found in non metals ?
brottleness- brottleness
30. Why does a cannon recoil after fliring?
newton ''s third law of motion- newton ''s third law of motion
31. What is the earth ''s escape velocity ?
11.2km/s- 11.2km/s
32. When a runnig car stops sudenly the passengers tends to lean forward because of :
gravitational force- gravitational force
33. In the earth the weight of a body is maximum at the
surface- surface
34. Which of the the following have the same unit ?
work and torque- work and torque
35. Relative humidity is expressed as
Percentage- Percentage
36. Rocket works on the principle of
Newton's Third Law- Newton's Third Law
37. If a body moves with a constant speed in a circle
its velocity remains constant- its velocity remains constant
38. A wheel-barrow is an example of
class II lever- class II lever
39. Parsec is the unit measurment of
astronomical distance- astronomical distance
40. A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is
zero at that place- zero at that place
41. Why does a canon recoil after firing ?
newton''s third law of motion- newton''s third law of motion
42. The weight of a body acts through the centre of
gravity- gravity
43. Under which condition real gas canwork as an ideal gas ?
low pressure and high temperature- low pressure and high temperature
44. The angle in which a cricet ball shouuld be hit to travel maximum horizantal distance is
45 degree with horizental- 45 degree with horizental
46. A boy sitting in an open car moing with the constant speed throws a ball straight up into the air
in front of him- in front of him
47. It iseasier to carry two buckets of water in one hand each than to carry only one in one hand because
centre of gravity and centre of equillibrium fail with in the feet- centre of gravity and centre of equillibrium fail with in the feet
48. A bottle of sodamine is grasped by the neack and swung briskly in a verticle circle near which portion of the bottle do the bubbles collect ?
near the neack- near the neack
inversely propertional to force- inversely propertional to force
50. What is the si unit of frequency ?
hertz- hertz
51. The motion of a body around a circuler path is an example of
uniform velocity, bariable acceleration- uniform velocity, bariable acceleration
52. A metal ball and a rubber ball bath having the same mass,same velocity.the rubber ball rebounds and the metal ball does not rebound.it can be concluded that
The rubber ball suffers great-er change in momentum- The rubber ball suffers great-er change in momentum
53. Vintlilators are provide near the celling of the room because
the exhaled warmer air rises up and goes out- the exhaled warmer air rises up and goes out
54. During the motion of a projectile fired from the earth surface
horizontal component of its velocity remains constant- horizontal component of its velocity remains constant
55. What should a person on a freely rotating turn table do to decreases his (angular 0 speed ?
sprread his hands outwards- sprread his hands outwards
56. An athlete runs before long jump to get advantage on
inertia of motion- inertia of motion
57. Which of the following is not a vector quantity ?
speed- speed
58. 0 degree k is equivalent to
-273degre c- -273degre c
59. In a particuler system the units of length mass and time are chosen to be 10cm 10g and 0.1 s respectively
0.1- 0.1
60. Ice cubes are added to a glass of pure water and a glass of pure alcohol
at a higher level in water- at a higher level in water
61. A bomb explodes on the moon .you will hear its sound on earth after
3.7 hours- 3.7 hours
62. The time period of a seconds pendulum is
2 second- 2 second
63. If density of oxygen is 16 times that of hydrogen what will be their corresponding ratio of velocity ?
1 : 4- 1 : 4
64. A man in a train moving with a velocity drops a ball the platefrom
a parabola- a parabola
65. Smoge is a combination of
smoke and fog- smoke and fog
66. What is the unit of the physical quantity , momentum
newton second- newton second
67. If there were no gravity, which of the following will not be there for a fluid ?
upward thrust- upward thrust
68. Which of the following is not a vector quantity ?
torque- torque
69. How much mechanical work must be done to completly melt 1 gram of ice at 0degree c?
zero- zero
70. Which of the following is an example for cantilever beam ?
bridge- bridge
71. Which of the following is not a characteristic of a solid ?
high compressiblity- high compressiblity
72. The center of gravity of a sprinter during the race lies
ahead of his feet- ahead of his feet
73. The weight of a body at the centre of earth is
zero- zero
74. Newton '' s first law is also known as
law of motion- law of motion
75. A man standing close to the platform at railway station experiences a pulling force towards a fast moving train because of
pressure difference due to fast moving air in between- pressure difference due to fast moving air in between
76. The temperature of a liquid is 32degree f
0degree c- 0degree c
77. When hot -water is sprinkled on a hotter glass tumbler , it breaks becouse
glass suddenly contracts- glass suddenly contracts
78. what is the principle of a life jacket ?
it provides oxygen to a drowning person- it provides oxygen to a drowning person
79. The moment of inertia of a body does not depend upon its
anguler velocity- anguler velocity
80. The atmospheric air is held to the earth by
gravity- gravity
81. Which of the following is not a vector quantity ?
electric current- electric current
82. Why is weigtlessness experienced while orbting the earth in space ships ?
zero gravity- zero gravity
83. An object with a constant speed
is not accelerated- is not accelerated
84. In severe winter , in cold countries water pipes burst because
combined effect of all the above three- combined effect of all the above three
85. A bullet is fired from a rifle which recoils after firing
zero- zero
86. When a strong beam of light is passed through a colloidal solution the light will
be scattered- be scattered
87. Which one of the following is a non -dimensional quantity ?
strain- strain
88. If both the the mass and the velocity of a body is increased to twice of their magnitude the kinetic energy will increase by
4 times- 4 times
89. An aircraft can perform aerobatic manoeuvres in a vertical loop because of
gravity- gravity
90. An object covers distance which is directly proportional to the squre of the time
constant- constant
91. The si unit of luminous emiiane is :
lux- lux
92. Which of the following quantity is a measure of inertia ?
mass- mass
93. A system exhibiting S.H.M
elasticity as well as inertia- elasticity as well as inertia
94. The slope of a velocity time graph represents
accleration- accleration
are equal in magnitude- are equal in magnitude
96. Distance of stars are measured in
light year- light year
97. A body of mass 4kg accelrates from 15m/s to 25m/s in 5 seconds due to the application of a force on it
8- 8
98. Two stones of different masses are dropped simultaneous from the top of a building
both the stones reach the ground at the same time- both the stones reach the ground at the same time
99. as we go from equator to north pole the value of g the acceleration due to gravity
increases- increases
100. A light year is a measure of
distance- distance
101. The density of a gas is maximum at
low temperature high pressure- low temperature high pressure
102. Intensity of gravitational field of earth is maximum at
poles- poles
103. The temperature which has the same reading on both fahrenheit and celsius is
-40 degree- -40 degree
104. The spoon dropped by an astronaut in a satelliite will
continue to follow the motion of the satellite- continue to follow the motion of the satellite
105. Mud houses arewd cooler in summers and warmer in winer as comared to brick houses becuse
mud is a bad conducter- mud is a bad conducter
inversely proportional to force- inversely proportional to force
107. Which of the the following is an example of simple harmonic motion ?
simple pendulum motion- simple pendulum motion
108. Amount of water vapour in the atmosphare is measured in terms of
humidity- humidity
109. What is the unit of relative density ?
it has no unit- it has no unit
110. It is difficult to fix a nail on a freely suspended wooden frame which law supports this statement ?
newton '' s third law- newton '' s third law
111. An object is in static equilibrium when it is
at rest- at rest
112. Who enunciated the laws of planetry motion ?
johannes kepler- johannes kepler
113. The absolute zero is a temperature at which
moleculer motion in a gas would- moleculer motion in a gas would
114. A sphere rolls down on two inclined planes of differnt angles but same height , it does nso
with the same speed- with the same speed
115. When net torqe is zero will be constant
angular momentum- angular momentum
116. Which of the following is not a vector quantity ?
speed- speed
117. A rubber ball is dropped from a height of 2 metres
2 meters- 2 meters
118. Why boiling point of water decreases at high altitudes ?
because of law atmospheric pressure- because of law atmospheric pressure
119. The absolute zero is a temperature at which
moleculler motion in a gas would cease- moleculler motion in a gas would cease
120. Which of the following is the unit of astronomical distance ?
para/ sec.- para/ sec.
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