The true statements about gravitational force are:
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It is directed inward from the center of an object. - True. Gravitational force pulls objects toward each other, which means it is directed inward.
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It gets stronger as two objects are brought closer together. - True. The gravitational force increases as the distance between the objects decreases, according to Newton's law of universal gravitation.
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It gets weaker as the mass of an object decreases. - True, but it's worth noting that the gravitational force also depends on the mass of the other object. If one object's mass decreases, the overall gravitational attraction can decrease.
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It exists between any pair of objects. - True. Gravitational force acts between any two objects with mass, regardless of whether they are touching or not.
The false statements are:
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It is directed outward from the center of an object. - False. Gravitational force is not directed outward; it is always attractive, pulling objects toward each other.
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It exists only between objects that are touching one another. - False. Gravitational force acts over a distance and does not require contact between objects.
So, the correct true statements are:
- It is directed inward from the center of an object.
- It gets stronger as two objects are brought closer together.
- It gets weaker as the mass of an object decreases.
- It exists between any pair of objects.