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The gravitational force of normal matter is only attractive. Given negative mass, that would be different. The interaction of negative and normal mass would be quite intersting. I would tend to assume that negative mass would also attract negative mass, but repel normal mass.

## What force is only attractive?

The gravitational force is the only force that is purely attractive. Electricity and magnetism can be repulsive as well. For all three forces, the closer the objects are to each other, the stronger the force of attraction. When the objects are far apart, the force of attraction is weaker.

## Is gravity the only force?

When we think of gravity, we typically think of it as a force between masses. … But we now understand that gravity as a force is only part of a more complex phenomenon described the theory of general relativity. While general relativity is an elegant theory, it’s a radical departure from the idea of gravity as a force.

## Is gravity only attractive or repulsive?

Both in the Newton theory of gravitation and in the General Theory of Relativity the gravitational force is exclusively attractive one. However, the quantization of gravity shows that the gravitational forces can also be repulsive [3].

## Can there be force without gravity?

Gravity exists everywhere in the universe and is the most important force affecting all matter in space. In fact, without gravity, all matter would fly apart and everything would cease to exist. Gravity is the attractive force between two objects at a fixed distance r.

## What makes gravity an attractive force?

Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.

## What type of force is gravity?

Gravity or gravitational force is the force of attraction between any two objects in the universe. The force of attraction depends on the mass of the object and the square of the distance between them. It is by far the weakest known force in nature. 4 (2)

## Is gravity a theory or law?

This is a law because it describes the force but makes not attempt to explain how the force works. A theory is an explanation of a natural phenomenon. Einstein’s General Theory of Relativity explains how gravity works by describing gravity as the effect of curvature of four dimensional spacetime.

## What if gravity doesn’t exist?

Gravity compresses the Earth’s atmosphere; it creates air pressure- the driving force of wind. Without gravity, there would be no atmosphere or air pressure and thus, no wind, no cloud, no water, no hydrogen, no oxygen, its mean there would be no life at the Earth.

## Did Einstein say gravity is not a force?

Einstein argued that gravity isn’t a force at all. He described it as a curvature of time and space caused by mass and energy. … Their math, laid down in 10 equations, explained how gravity could move around objects via a warped reality, accelerating without ever feeling any mysterious Newtonian forces.

## Is the gravitational force always attractive in nature?

Complete answer: We know that the gravitational force is defined as the multiplication of the gravitational constant along with the masses of the objects and then divided by the square of the distance between the objects. … Hence, the nature of the gravitational force will always be attractive and not repulsive.

## Why does gravity only ever act to attract other objects never repel them?

Gravity never acts to repel two objects. … The formula for gravitational attraction depends on the mass of each object ( m and M ), the distance between them ( r ), and the gravitational constant ( G ).

## Is gravity a contact force?

The most familiar non-contact force is gravity, which confers weight. In contrast a contact force is a force which acts on an object coming physically in contact with it. All four known fundamental interactions are non-contact forces: Gravity, the force of attraction that exists among all bodies that have mass.

## Why space has no gravity?

Because space is relatively empty, there is little air to feel whooshing past you as you fall and there are no landmarks to indicate you are moving. … The second reason that gravity is not so obvious in space is because objects tend to orbit planets instead of hitting them.

## Is gravity a push or a pull?

Gravity is a force, which means that it pulls on things. But the Earth isn’t the only thing which has gravity. In fact, everything in the universe, big or little, has its own pull because of gravity – even you.

## Is there any place on earth with no gravity?

Hoover Dam in Nevada, USA is one such place where gravity doesn’t seem to exist at all. Don’t believe us? Well then, try this experiment if you ever happen to visit this place. Stand near the dam and pour water from a bottle over the dam.