Answer: The correct answer is "weight".
Step-by-step explanation:
The expression for the weight is as follows;
w= mg
Here, m is the mass of the object, g is the acceleration due to gravity and w is the weight.
Weight: It is the force which is exerted by the gravity on an object. It varies place to place.
The weight of the object depends on mass and acceleration due to gravity.
The weight of the object on the moon is one sixth of the weight of the object on the earth whereas the mass of the object remains constant.
Density is defined as the mass per unit volume.
Therefore, the force that gravity exerts on an object is called weight.