Select the correct answer to complete the sentence. Gravitational force is said to be universal because: *
1 point
it operates in one direction.
it operates only within our solar system.
it applies mainly to planets and moons.
it applies to all objects.
it applies to all objects.
To determine the correct answer, we need to understand the concept of the gravitational force and why it is considered universal.
Gravitational force is the force of attraction that exists between any two objects with mass. It is a fundamental force that is responsible for keeping objects with mass (such as planets, moons, and even everyday objects on Earth) in their orbits and for the formation and structure of galaxies.
Now, let's go through the answer choices:
1. "It operates in one direction." This answer choice is incorrect because gravitational force operates in all directions between two objects. It is an attractive force that pulls objects together.
2. "It operates only within our solar system." This answer choice is incorrect because gravitational force is not limited to our solar system. It is a fundamental force that acts everywhere in the universe. It explains the motion of objects both within our solar system and beyond.
3. "It applies mainly to planets and moons." This answer choice is incorrect because gravitational force applies to all objects, not just planets and moons. Every object with mass experiences gravitational force.
4. "It applies to all objects." This answer choice is correct. Gravitational force is universal in the sense that it applies to all objects, regardless of their size, shape, or location in the universe.
Therefore, the correct answer is "it applies to all objects."