Question

What does mass times gravitational acceleration represent?
A.Density
B.A solid
C.Volume
D.Weight
E.Matter

Answer 1

When we throw an object from a certain height it will fall to the ground. While falling the object’s velocity will not remain constant it will change. Therefore a change in the velocity is defined as the acceleration. This velocity change is defined as the acceleration due to gravity. The measure of the amount of matter in a body can be defined as mass.

Complete answer:
We have seen the definitions for mass and acceleration due to gravity. Now let us define the weight of an object. Weight can be defined as the measure of the force of gravity that acts on the object. Now we can see that the mass times gravitational acceleration gives us weight. This can be written mathematically as,
$\Rightarrow W = mg$
Here,$W$ is said to be the weight of the object
$m$ is the object mass
$g$ is said to be the gravitational acceleration
Newton is the S.I unit of weight. The mass may not change from place to place on the surface of the Earth but the acceleration due to gravity changes.
Therefore, the answer for the above-given question is weight

Therefore, the correct option is D.

Note:
Though mass and weight are very similar terms. But they both have a different meaning. There are a lot of differences between mass and weight. The value of weight can be zero on the other hand the value of mass can never be zero. Mass is said to be scalar quantity and weight is said to be a vector quantity. Mass will never change according to location whereas weight will change according to location.