Rocks Always Free-Fall Toward the Center of The Earth

If gravity always causes objects to fall toward the center of the earth, then rocks always free-fall toward the center of the earth. Gravity always causes objects to fall toward the center of the earth. Therefore, rocks always free-fall toward the center of the earth.

Free-fall happens when an object is falling due to gravity and no other outside force that would change the direction of motion is acting on the object. For our definition there is no wind, magnetic field, or other situation that would exert an outside force to change the direction of the object from the direction due to gravity. During free fall on earth only two forces exist: the downward force toward the center of the earth due to gravity and friction with the air. Friction with air doesn't change the direction of the motion and so it can be concluded that: If gravity always causes objects to fall toward the center of the earth, then rocks always free-fall toward the center of the earth.

Gravity is due to the mass of an object. The more mass, the greater the gravitational pull. Since the gravity is due to the mass of an object, it makes sense that the direction of the gravitational pull will be toward the center of the mass. Observations confirm that the gravity exerted by a mass is always directed toward the center of the mass. The earth is a large symmetrical mass and it can then be concluded that: gravity always causes objects to fall toward the center of the earth.

If gravity always causes objects to fall toward the center of the earth, then rocks always free-fall toward the center of the earth. Gravity always causes objects to fall toward the center of the earth. Therefore, rocks always free-fall toward the center of the earth.

Notice that this bare-bones example paper conforms to the pattern that is required:

The main argument is a conditional argument of the "If A, then B. Affirm A. Conclude B." variety and is included in the first paragraph. Support for the first (conditional) premise is in the second paragraph, support for the second premise is in the next paragraph, and there is a concluding paragraph that restates the original simple conditional argument. Also note that the title is the conclusion of the main argument.