Practice Gravitation RRB PYQ questions from Railway examinations, including RRB NTPC PYQ, RRB Group D PYQ, RRB JE PYQ, RRB ALP PYQ and RRB Technician PYQ. This topic-wise question set covers important concepts of gravitation that are useful for RRB Physics preparation.
The questions cover important concepts such as Newton’s law of gravitation, gravitational force, acceleration due to gravity, variation of gravity, mass and weight, gravity and motion under gravity, satellite motion, escape velocity and related numerical and conceptual questions.
Gravitation RRB PYQ questions are useful for candidates preparing for Gravitation RRB NTPC PYQ, Gravitation RRB Group D PYQ, Gravitation RRB JE PYQ, Gravitation RRB ALP PYQ and Gravitation RRB Technician PYQ. Solve the questions, check the solutions, and strengthen your understanding of important concepts frequently relevant to Railway exams.
Start practicing Gravitation RRB PYQs and improve your Physics preparation for upcoming Railway examinations.
101
An object's weight is maximum at:
RRB Group-D
17/09/2018 / Shift II
2018
✓ Answer:AThe poles
Effective gravitational acceleration is greatest at the poles.
102
The gravitational force acting on an object is known as its:
RRB Group-D
17/09/2018 / Shift I
2018
✓ Answer:DWeight
Weight is the gravitational force on a body, W = mg.
103
Astronauts in an orbiting spacecraft feel _____ apparent weight.
RRB NTPC (Stage-I)
11/04/2016 / Shift II
2016
✓ Answer:CZero
Astronauts and spacecraft fall together in orbit, giving zero support force and apparent weightlessness. Gravity is not zero there, contrary to the source explanation.
104
The Moon's motion around Earth is maintained by:
RRB Group-D
24/10/2018 / Shift I
2018
✓ Answer:AGravitational force
Gravity provides the inward force required for the Moon's orbital motion.
105
The force of gravity on an object is called:
RRB Group-D
22/10/2018 / Shift III
2018
✓ Answer:AWeight
Weight is the force exerted on the object by gravity.
106
Acceleration due to gravity is given by:
RRB Group-D
10/12/2018 / Shift I
2018
✓ Answer:DGM/R²
Equating mg = GMm/R² gives g = GM/R².
107
How does a body's weight at the poles compare with its weight at the equator?
RRB Group-D
09/10/2018 / Shift II
2018
✓ Answer:CIt is greater
Effective gravity is stronger at the poles, so the body weighs more there.
108
Which statement is incorrect?
RRB NTPC (Stage-I)
29/04/2016 / Shift III
2016
✓ Answer:DIn a lift accelerating upward, apparent weight is less than actual weight
For upward acceleration a, the scale reads N = m(g + a), greater than mg.
109
If the Sun and Earth have masses M and m and separation r, what is the work done by the Sun's gravity during one complete revolution of Earth?
RRB JE
14/12/2014 / Green paper
2014
✓ Answer:AZero
Gravity is conservative, so its net work over a complete closed orbit is zero.
110
Surface gravity is 9.8 m/s². What is gravity at an altitude equal to one-tenth of Earth's radius?
RRB Group-D
15/10/2018 / Shift III
2018
✓ Answer:D8.1 m/s²
g_h = 9.8/(1 + 0.1)² = 9.8/1.21 ≈ 8.1 m/s².
Showing 101 – 110 of 162 MCQ Questions | Page 11 of 17
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