Which of these physical quantities varies as an object changes its velocity? A. pressure B. mass C. weight D. momentum

I believe the answer is B

Answer: Option (D) is the correct answer.

Explanation:

Momentum means the ability of an substance or object to continue moving. In general, momentum is the product of mass and velocity. Momentum is a physical quantity.

Mathematically, p = m * v

where, p = momentum

m = mass

v = velocity

Momentum and velocity of an object can change whereas mass or weight is a fixed quantity, so mass will not change whether the object will move or not.

Therefore, when an object changes its velocity then there will also be change in its momentum.