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Gravitation JEE Mains Questions. We covered all the Gravitation JEE Mains Questions in this post for free so that you can practice well for the exam.
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mcq on Gravitation for JEE Students
What would happen to gravity at the equator if Earth’s rotation speed increased?
a) It would rise at the equator but stay the same at the poles
b) It would decrease at the equator but remain constant at the poles
c) It would remain the same at the equator but reduce at the poles
d) It would stay the same at the equator but increase at the poles
Option b – It would decrease at the equator but remain constant at the poles
What causes the acceleration due to gravity on a planet to decrease?
a) A reduction in the planet’s radius
b) An increase in the planet’s Mass
c) A decrease in the object’s Mass
d) Moving farther above the planet’s surface
Option d – Moving farther above the planet’s surface
Why does the value of g at sea level increase when moving from the equator toward the poles?
a) Because Earth is a sphere with a uniform density
b) Due to varying densities at the poles and equator
c) Since Earth is an ellipsoid with a larger equatorial radius than polar radius
d) Because Earth has a smaller equatorial radius than at the poles
Option c – Since Earth is an ellipsoid with a larger equatorial radius than polar radius
Where on Earth is the human body weight the highest?
a) At the poles
b) The same at every location on Earth
c) At the equator
d) On high-altitude regions
Option a – At the poles
What fraction of an object’s Earth weight is its weight on the Moon?
a) 1/6
b) 1/8
c) 1/4
d) 1/10
Option a – 1/6
An object weighs 150 N on Earth. How much would it weigh on the Moon?
a) 150 N
b) 75 N
c) 25 N
d) 50 N
Option c – 25 N
What would be the weight of a 600 kg object on the Moon?
a) 60 N
b) 600 N
c) 100 N
d) 10 N
Option c – 100 N
Why can a person jump higher on the Moon than on Earth?
a) The Moon’s terrain is rough
b) The Moon’s gravity is weaker than Earth’s
c) The Moon is colder than Earth
d) The Moon lacks an Atmosphere
Option b – The Moon’s gravity is weaker than Earth’s
Which of the following statements about gravity is correct?
I. Gravity reduces as we move higher from Earth’s surface
II. Gravity increases when going from equator to poles
III. Faster Earth rotation lowers gravity
IV. Gravity also decreases as we go inside Earth
a) I, II and III
b) I, III and IV
c) I, II and IV
d) I, II, III and IV
Option b – I, III and IV
Assertion: Earth’s rotation does not affect gravity at the poles
Reason: The Earth spins around the polar axis
a) Both the assertion and reason are true, and the reason explains the assertion
b) Both statements are true, but the reason does not explain the assertion
c) The assertion is true, but the reason is incorrect
d) The assertion is incorrect, but the reason is true
Option a – Both the assertion and reason are true, and the reason explains the assertion
Which statement about Mass is true?
a) It varies depending on location
b) It stays the same everywhere
c) It changes with the object’s shape
d) It is affected by temperature
Option b – It stays the same everywhere
Which of the following is correct regarding Mass measurements with a spring balance?
a) The reading is accurate only where it’s calibrated
b) The reading is accurate anywhere
c) The reading is accurate only where gravity matches the calibration site
d) Spring balances cannot measure Mass anywhere
Option d – Spring balances cannot measure Mass anywhere
What is meant by weight?
a) It is measurable only with a spring balance
b) It remains constant always
c) It is the force exerted by Earth pulling objects to its center
d) It is a Vector directed toward Earth’s center
Option c – It is the force exerted by Earth pulling objects to its center
How much would an object weigh at Earth’s core?
a) Half of its surface weight
b) Zero
c) Double its surface weight
d) Infinite
Option b – Zero
If the Earth-Sun distance were doubled, what would happen to the gravitational pull?
a) It would double
b) It would quadruple
c) It would become one-fourth
d) It would be halved
Option c – It would become one-fourth
Where is gravity effectively zero?
a) At Earth’s core
b) At the poles
c) At the equator
d) At sea level
Option a – At Earth’s core
Where is the value of acceleration due to gravity highest?
a) At the poles compared to the equator
b) Lower at the poles than at the equator
c) Greater at the North Pole than at the South Pole
d) Greater at the South Pole than the North Pole
Option a – At the poles compared to the equator
Which of these is false regarding gravitational force?
a) It acts on all objects in the universe
b) It dominates interactions between astronomical bodies
c) Its effect on atoms is negligible
d) It is uniform for all pairs of objects
Option d – It is uniform for all pairs of objects
How does gravitational force differ from electric and magnetic forces?
a) Gravity is the strongest of the three
b) Gravity only attracts, while the others can attract and repel
c) Gravity has the shortest range
d) Gravity is short-range, unlike the other two
Option b – Gravity only attracts, while the others can attract and repel
Who was the first to measure the gravitational constant?
a) Henry Cavendish
b) Isaac Newton
c) Laurent Freidel
d) Johannes Kepler
Option a – Henry Cavendish
How is gravitational force calculated?
a) By multiplying Mass with gravitational acceleration
b) By dividing Mass by gravitational acceleration
c) By dividing gravitational acceleration by Mass
d) By taking the reciprocal of their product
Option a – By multiplying Mass with gravitational acceleration
We covered all the Gravitation JEE mains Questions above in this post for free so that you can practice well for the exam.
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