Gravitation Questions and Answers | Gravitation Multiple Choice Questions(MCQs) with Answers

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Questions
1 Another name for force of gravity acting on an object is
A friction
B air resistance
C weight
D mass

Answer: weight
2 If an apple is taken to mountain top then its weight is
A decreased
B increased
C constant
D infinite

Answer: decreased
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3 Force with which everybody attracts every other body is called
A force of friction
B retarding force
C force of gravitation
D none of above

Answer: force of gravitation
4 2 lead spheres having mass of 1000 kg each are placed with their centres 1 m apart. gravitational force with which they attract to each other will be
A 6.673 & times; 105
B 66.73 & times; 105
C 6673 & times; 10-5
D 6.673 & times; 10-5

Answer: 6.673 & times; 10-5
5 First man who came up with idea of gravity was
A Henry Briggs
B John Napier
C Jobst Burgi
D Isaac Newton

Answer: Isaac Newton
6 Of gravitation is inversely related to
A distance between masses
B product of magnitude of masses
C direction of masses
D square of distance between masses

Answer: square of distance between masses
7 Where the value of gravitational acceleration is less due to the diurnal motion of earth?
A At Polar region
B At equator
C Tropic of Cancer or Tropic of Capricorn
D None of this

Answer: At equator
8 What is the value of Universal Gravitational Constant (G) in C.G.S unit?
A 6.67 * 10-6 cgs unit
B 6.67 * 10-7 cgs unit
C 6.67 * 10-8 cgs unit
D 6.67 * 10-10 cgs unit

Answer: 6.67 * 10-8 cgs unit
9 The gravitational force between two objects is F. If masses of both the objects are halved without altering the distance between them, then the gravitational force would become
A f/4
B f/2
C f
D 2f

Answer: f/4
10 What is the gravitational force between two objects?
A attractive at large distances only
B attractive at small distances only
C attractive at all distances
D attractive at large distances but repulsive at small distances

Answer: attractive at all distances
11 The mass of the body on moon is 40kg, what is the weight on the earth.
A 240kg
B 392N
C 240N
D 400kg

Answer: 392N
12 The distance between two bodies becomes 6 times more than the usual distance. The the F becomes
A 36 times
B 6 times
C 12 times
D 1/36 times

Answer: 1/36 times
13 What is the name of attractive force which act between any two bodies in our universe?
A Gravitational force
B Coulomb attractive force
C Nuclear force
D Magnetic force

Answer: Gravitational force
14 In which region of earth the weight of a body is slightly greater?
A At Polar region
B At equator
C Tropic of Cancer or Tropic of Capricorn
D None of this

Answer: At Polar region
15 Gravitational field is directed
A towards the earth
B away from earth
C has no direction
D in a specific direction making angle with earth

Answer: towards the earth
16 Value of gravitation on moon's surface is 1.6 ms-1. weight of a 100 kg body on moon's surface will be
A 80 N
B 100 Ns
C 120 N
D 160 N

Answer: 160 N
17 Force due to which everybody of universe attracts evey other body
A force of gravitation
B force of limiting friction
C force of inertia
D force of mechanics

Answer: force of gravitation
18 As we go farther away from Earth, gravitational force becomes
A constant
B stronger
C weaker
D positive

Answer: weaker
19 In gravitational field of Earth, gravitational force per unit mass is called Earth's
A gravitational field weakness
B gravitational field strength
C zero gravitational field
D altitude

Answer: gravitational field strength
20 Every body in universe attracts every other body with force which is directly proportional to product of their masses and inversly proportional to square of distance between their centres, this statement is known as
A law of friction
B law of gravitation
C law of motion
D law of momentum

Answer: law of gravitation
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