The force of attraction between all masses is called?

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

Answer: (C)

Gravity is the force of attraction between all masses. It acts between any two objects that have mass, pulling them toward each other. On Earth this is what gives objects weight and causes them to fall, and it also keeps planets in orbit around the Sun. The strength of this force depends on how heavy the objects are and how close they are: larger masses create a stronger pull, while greater distance weakens the pull. Inertia describes an object's resistance to changing its motion, mass is simply the amount of matter in an object, and magnetism is a different kind of attraction that only works with magnets and certain materials. So the idea being tested is gravity.