Mass is a fundamental property of matter that quantifies its amount. It is essentially a measure of an object's inertia or resistance to changes in motion when a force is applied. Unlike weight, which ...

All objects in the absence of air resistance (friction) fall at the same rate regardless of their mass. Due to gravity the speed of an object dropped from rest from a height will increase at the rate ...

Crash diets, which promise rapid weight loss, are unhealthy and unsustainable. While crash diets lead to initial weight loss, this is primarily due to loss of water weight and muscle mass, not fat.