Question

define mass:

define force:

Explanation:

Mass is a fundamental property of matter. It quantifies the amount of material in an object. It is measured in kilograms (kg) in the SI system. Force, as per Newton's second law ($F = ma$, where $m$ is mass and $a$ is acceleration), is what causes a change in an object's motion. It is a vector quantity (has magnitude and direction) and is measured in Newtons (N).

Answer:

Mass: A measure of the amount of matter in an object, measured in kilograms (SI unit).
Force: A push or pull that can cause an object to accelerate (change its velocity), measured in Newtons (SI unit).