What measurement depends on gravitational force?
Weight. Since weight is a measurement of gravitational force. It is true that MOST COMMONLY we measure mass with a background gravitational field being needed, by comparing weight to the weight of a reference mass on a balance. It doesn't matter what the gravitational field is, as long as there is one, and any balance will work. The gravitational field term will "cancel out" of the equation when you use a torque comparison balance to measure mass. It is possible to measure mass without using gravity at all. You instead rely upon inertia. http://www.youtube.com/watch?v=8rt3udip7...
Do frictional force depends on gravitational force ?
if there was no gravity, they you wouldn't have to pull an object along another surface, so you could avoid direct contact. Generally, the frictional force Ff is expressed as being proportional to the normal force: Ff = uN, where u is the coefficient of friction and N is the normal force, where "normal" in this context means perpendicular, i.e. perpendicular to the surface. If you have a block on a flat surface (the floor) the normal force is simply the weight of the block. But if you have an inclined surface (a ramp) the weight is still straight down, but the normal force is now at an angle (it's perpendicular to the ramp) and will be less than in the first case. Nevertheless, the normal force is some fraction of the weight, so we can say it depends on gravity.
Is the gravitational force dependent on the shape of the objects?
If we consider the case of objects placed in earth’s gravitational field , then the answer is no. If a body of mass ‘m' is placed in a field of ‘g’; then the weight of the body would be ‘me which is applied on its CG. In case we consider the case of earth itself , then answer is ,yes . Acceleration due to gravity depends on the shape and size and also on its internal mass configuration .
What does the force of gravity depend on?
Recently it was found that the majority of mass in matter is found in the interconnections of subatomic particles and not the particles themselves. This may mean that causal adjacencies determine much related to gravity.Adjacencies to or with what?Since all mass related physics equations are mutually related, what other causal adjacencies influence particle interconnections?The potential is that gravity has nothing directly to do with forces nor energy. Gravity may in some way regulate mass within a field. The change in mass and other properties regulated by the gravity field, variations of a field un spacetime.Spacetime being a non-localized field, and space/time localization within that field.Just hypothesizing based on recent findings.
Is the gravitational force dependent on the medium present between two masses?
A very interesting question and let me tell from the outset i do not have any academic background in physics so i have no right to answer this question, but let me put my humble (it could be wrong too) opinion,....i think the medium should affect the absolute gravitational force acting on the body but the net force will remain same.Let us assume two bodies of mass “M”, and “m” having distance “r” between them. Now, let us assume the medium is air or vacuum and gravitational force acting on bodies will be ((GMm)/r(square)) we know the gravitational force is directly proportional to mass of bodies and inversely proportional to square of distance between them.Now if we change the medium to ether or any other the gravitational forve due to their masses will remain same and in addition a continuous gravitational force will be acting upon both objects from all side, thus cancelling each other out and the net gravitational force acting would be same if the medium was air or vacuum.P. S. Only net gravitational force will cancel each other out and other forces will have different effect upon them ex, if immeresed in water addituonal bouyant force will be acting on them.Any suggestions are always welcome as we all re here to learn......
Does gravitational force depend upon the area?
The final result of gravity and inertial forces are both independent of area - both are simple because the actual functionality of gravity and inertia is dependent upon space and the area therefore which appear on both sides of the equation - one describing the function of the universe in responding to acceleration and the other describing the function of an accelerated mass wrt the universe. As it turns out the cancelling of areas on both sides the equation in an effort to simply the result actually, hides the ball. GRavity is a good case for “more is better” -Modern mathematical methods have all but strangled the holy grail of curiosity. Present theory is a wonderful example of caring reductionist to the extemporizing too fare with reductionist.00
According to Newton's law of gravitation, Earth's gravitational force is higher on an object of larger mass. Why doesn't that object fall down with higher velocity as compared to an object with lower mass?
It’s a good question and I like that you tried to reason it out - and your thought process isn’t all that unexpected because it leads to what seems like should be a correct answer. But there are a couple of things to think about here. One, it isn’t velocity you want to know about, but acceleration. That is, the velocity of something that falls keeps changing - so you want to know about the rate at which it changes as a measure of how it falls. Two, the acceleration of an object in free fall can be obtained by combining Newton’s gravitational force law and his second law of motion.Newton’s law of gravity definitely says that the mutual gravitational force between two objects is proportional to both masses and inversely proportional to the square of their separation. That is,Near the surface of the Earth, that can be writtenSo, as you said, the gravitational force depends on the mass m of the object you dropped, where G is a constant, and M and R are the mass and radius of the Earth.But if that is the only force that is acting on the mass you drop, then Newton’s second law says that the force must equal the mass of the object times its resulting acceleration - that is, F=ma or that the acceleration is given by a=F/m.And that acceleration when an object is dropped near the surface of the Earth is independent of the mass of the object itself if there are no other forces. So in that absence of other forces, all objects fall with the same gravitational acceleration.
Why does gravitational force depend on absolute, not relative mass? In other words, the Earth is 80 times heavier than the Moon. I am 80 times heavier than an ant, yet an ant doesn't orbit me. Is this because of the gravitational constant?
The answer comes from one of the most mysterious aspects of gravity: gravitational force is dependent on mass. Yet mass also determines acceleration, from F = ma. So heavier objects, which are attracted more strongly, take more force to accelerate.The result is that all objects in a gravitational field accelerate identically. That’s amazing. It’s because mass comes into two different laws: the law of gravity and the law of acceleration.Einstein pondered this. He called it the equivalence principle, and one goal of relativity theory was to explain why it was so. He succeeded in doing this by making gravity into a geometric theory. In a real sense, gravity in relativity theory is not a force on an object, but something that bends space-time. This leads directly to the conclusion that all objects will accelerate identically.