Question

which statement explains how gravity and inertia work together?
○ they change the motion of objects.
○ they take turns working on objects.
○ they keep all objects moving at the same speed.
○ they prevent objects from moving in a circular motion.

Explanation:

Gravity is a force that pulls objects toward each other, while inertia is the tendency of an object to resist changes in its motion. Together, gravity can act to alter an object's path or speed, and inertia resists that change, resulting in a combined effect that changes the motion of objects (such as keeping planets in orbital motion, where gravity pulls inward and inertia keeps the planet moving forward, changing its direction continuously). The other options are incorrect: they do not act in turns, they do not keep all objects at the same speed, and they actually enable circular motion rather than preventing it.

Answer:

A. They change the motion of objects.