What is the difference between gravitational and Coulomb force?

1) The gravitational force between two masses is always attractive but Coulomb force between two charges can be attractive or repulsive, depending on the nature of charges. 2) The value of the gravitational constant G=6.626×10-11Nm2kg-2.

Is Coulomb’s law stronger than gravity?

The electrostatic attraction between the two is given by Coulomb’s law. Both are really small forces by everyday standards, but notice how much bigger the electrostatic force is: So, the electric force is 1039 times stronger; gravity seems negligible in comparison!

Does gravity bend space time?

Gravity does not bend time. Gravity is associated with the slowing of time, but that is because the gravitational effect and the time dilation effect are due to the same phenomena. The proximity of mass energy slows time and contracts space (this is what is called the curving of spacetime).

How are Newton’s law of universal gravitation and Coulomb’s law different?

Coulomb’s law explains the force between the charges whereas Newton’s law of gravitation explains the force between the masses. The electrostatic force may be positive or negative in the case of Coulomb’s law but the force is always negative in the case of Newton’s law of gravitation.

How is the Coulomb force between two charges affected by the presence of a third charge?

By the superposition principle, the force between two charges does not depend on the presence of third charge. Hence the force between two charges say q1 and q2 remains same i.e F.

Why is gravitational force is an inverse square law force?

The inverse square law proposed by Newton suggests that the force of gravity acting between any two objects is inversely proportional to the square of the separation distance between the object’s centers. Altering the separation distance (d) results in an alteration in the force of gravity acting between the objects.

How is Coulomb law similar to the law of universal gravitation?

Similarities among the electrical and Gravitation force Both forces are conservative forces. Both forces obey the inverse square law. The charge ‘q’ plays the same role in the coulomb’s law that the mass ‘m’ plays in newton’s law of gravitation.

Is gravity actually curved space?

If gravity is actually curved space and if falling objects are simply following the natural curves of space why does each object have its own curve? This is a great question which goes to the heart of why Einstein said gravity is the curvature of space-time, rather than just the curvature of space.

Is gravity the warping of space and time?

The equivalence principle tells us that the effects of gravity and acceleration are indistinguishable. In thinking about the example of the cylindrical ride, we see that accelerated motion can warp space and time. It is here that Einstein connected the dots to suggest that gravity is the warping of space and time.

How does gravity affect the passage of time?

Gravity slows the passage of time. Similar to how the passage of time is changed under special relativity, general relativity predicts that massive objects will also dilate time. The more massive the object, the more noticeable the effect.

Why do objects hit the ground at the exact same time?

It turns out that in these cases, if no other forces such as air resistance act on the objects being fired, they will follow the exact same paths and hit the ground at the exact same time and exact same place.