What is the weight, in newtons, of an object on Mercury with a mass of $90$ kilograms?

Q. The mass of an object was measured as 250 grams. What is the weight of the object in Newtons? ( g= $9.8m{s}^{-2}$)

Q. An object on Earth has a weight of $150$ newtons. On which planet would the same object have an approximate weight of $170$ newtons?

Q. Which of the following statements about weight is/are false ?
$1$. Weight does not change when location changes.
$2$. Weight is a force.
$3$. Weight is measured in kilograms.
$4$. Weight is proportional to the amount of gravity acting on an object.

Q. An object of mass 100 grams has a volume of 25 cubic centimetres. Its density in kilogram per cubic metre is:
[3 marks]

Q. The gravitational force between earth and an object of mass $10kg$ on its surface in newtons is ____________