The force of gravity on an object is that object's...

• A. Mass
• B. Inertia
• C. Gravity
• D. Weight

Answer: (D)

Weight is the force of gravity acting on an object. It’s the pulling force that gravity exerts on the object, and it can be quantified by W = m g, where m is the object's mass and g is the local acceleration due to gravity. This means weight depends on both how much matter there is and how strong gravity is in that location. Mass is the amount of matter and stays the same regardless of location; inertia is the resistance to changes in motion (also linked to mass). Gravity is the attractive force between masses that causes weight, but when we talk about the force acting on the object due to gravity, we’re referring to its weight.