Value Of g On Moon

The acceleration experienced by a freely falling object due to the gravitational force of the massive body is called acceleration due to gravity and is represented by g measured using SI unit m/s2. The value of g depends on the mass of the massive body and its radius and its value varies from one body to another. The value of g on the moon is constant.

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Acceleration due to gravity on moon

The acceleration due to gravity on moon or the value of g on moon is 1.625 m/s2.

Calculate acceleration due to gravity on moon

The acceleration due to gravity formula is given by

\(\begin{array}{l}g=\frac{GM}{R^{2}}\end{array} \)

Where,

  • G is the universal gravitational constant, G = 6.674×10-11m3kg-1s-2.
  • M is the mass of the massive body measured using kg.
  • R is the radius of the massive body measured using m.
  • g is the acceleration due to gravity measured using m/s2.

The mass of the moon is 7.35×1022kg.

The radius of the moon is 1.74×106 m

Substituting the values in the formula we get-

\(\begin{array}{l}g=\frac{6.67\times 10^{-11}\times 7.35\times 10^{22}}{\left ( 1.74\times 10^{6} \right )^{2}}\end{array} \)

Thus, the value of g on moon is g=1.625 m/s2.

The acceleration due to gravity also follows the unit of acceleration

Hope you got to know the value of g on the moon along with acceleration due to the gravity formula, definition, calculation, and SI units.

Physics Related Topics:

Relation Between G And g
Relation Between Escape Velocity And Orbital Velocity
Gravity Waves
Mass Energy Equivalence

Watch the full summary of the chapter Gravitation Class 9

Frequently Asked Questions – FAQs

Q1

What does the value 9.8 m/s2 for acceleration due to gravity imply?

The value 9.8 m/s2 for acceleration due to gravity implies that for a freely falling body the velocity changes by 9.8 m/s every second.
Q2

Does mass have any effect on acceleration due to gravity?

The acceleration due to gravity is independent of the mass of the body.
Q3

What is the formula to calculate the force of attraction between two objects?

If m1 and m2 are the two masses separated by a distance d. According to the universal law of gravitation, the force of attraction between them is
F = Gm1m2/d2
Q4

What is free fall?

Freefall is defined as a situation when a body is moving only under the influence of the earth’s gravity. Since external force is acting on the ball, the motion will be accelerated.
Q5

What is the value of g on the moon?

The value of acceleration due to gravity on the moon is one-sixth of its value on the earth. It is equal to 1.625 m/s2.

Watch the video and solve important questions in the chapter Gravitation Class 9 Science

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  1.  Sarvesh Mishra
    October 8, 2020 at 8:29 am

    Thanks

    Reply