Question

A body is brought from the earth to the moon is _______
A. Mass will change
B. Weight will change
C. Mass and weight will change
D. Both mass and weight will change

Answer 1

Hint: In order to deal with this question first we have to understand the term gravity, then we will proceed further comparing the mass and the weight of the object at the surface of earth and the moon and then we will compare the change in these quantities at these two surfaces.

Complete step by step answer:

Formula used- $W = mg$
Gravity is the force by which the earth or other body pulls particles into its centre. Gravitational power holds all planets in orbit around the sun.
Mass is the fundamental quantity and remains constant everywhere.
$W = mg$
But weight is the force and is the product of mass and acceleration due to gravity.
As the mass of earth is larger than the mass of the moon by around 6 times so the acceleration due to gravity on the earth is higher than that on the moon.
So the weight of objects increases on the surface of earth.
Once we leave earth's atmosphere our body weight reduces, mass stays the same, which is due to the moon's gravitational force. The tidal force on the moon is weaker than on the sun, thus the weight is smaller. The size of the moon is smaller, only one six of the earth, which is why we have less weight on the moon.
Hence, when a body is brought from the earth to the moon weight will change.
So the correct answer is option B.

Note: The acceleration that an object is experiencing due to gravitational force is called the acceleration due to gravity. This acceleration is not necessarily constant, due to gravity. An inverse-square law follows the change in gravitational acceleration with distance from Earth's centre. This means that gravitational acceleration is inversely proportional to the distance square from the Earth's centre.