The answer is B. A house.
Objects with the greatest mass will have the greatest force of gravity attracting them to the surface of the earth. Gravitational attraction is based on the mass of an object and the distance between the two "attractors" involved. For things on the Earth's surface, more mass equates to greater gravitational attraction. It's a direct relationship.
gravity is the force that keeps objects on the earth, if we didn't have gravity we would just float away
No, gravity is a force of attraction acting between all objects that have mass.
Gravity, easy!
Gravity
Wherever the objects happen to be, the one with the greatest mass attracts any nearby mass, such as the Earth, with the greatest force, and it is attracted to the other mass, such as the Earth, with equal force.
its a house
"distance"
The force of gravity between two objects is greatest when they are very close together. The force is inversely proportional to the square of the distance between them.
The direction of average acceleration is downwards, in the direction of gravity. This is because gravity affects all objects, even objects that are moving in other directions.
Based on Einstein's theory of relativity, spacetime is curved around massive objects, and gravity "acting" on objects is actually just the objects following this curve in spacetime. Gravity is not a force.
At any given distance between two objects, the force of gravity increases as the product of their individual masses increases. In principle, there is no "greatest". As long as you can keep increasing the product of their masses, the gravitational force of attraction between them will keep increasing.
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The list of choices that you posted along with your question doesn't include any such object. If you have a better list there, then just select the heaviest item from it.
All objects with any mass have gravity. So basically no, there are no objects whtat would have no gravity.
Gravitational potential energy
gravity is what makes objects fall