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Gravity

One of the four fundamental interactions, gravity is responsible for the fact that any objects with mass attract one another. According to general relativity, it is a space time curvature, but according to quantum mechanics it is the result of exchanges of virtual gravitons.

4,784 Questions

Can you escape earth's gravity by leaving earth's atmosphere?

Yes, yes you can. But the only thing is, you have to be travelling at a rate of 17,500 miles per hour to get out of the earth's gravitational pull. This speed cannot be reached without rocket or jet assisted take-off. Or light speed but we can't control that yet. :}

What is jupiters gravity percentage?

Jupiter's gravity is approximately 2.5 times stronger than Earth's gravity, which translates to about 24.79 m/s² or 2.53 times Earth's gravity.

Is gravity a strong force?

Gravity is considered a weak force compared to other fundamental forces like electromagnetism or the strong nuclear force. However, gravity is unique in that it has an infinite range and always acts to attract objects with mass. Despite being considered weak on the scale of particles, gravity dominates on larger scales such as planetary and galactic bodies.

What is the definition of the word support?

Support means to give assistance, help, or encouragement to someone or something. It can also refer to providing backing, reinforcement, or resources to help achieve a goal or offer comfort in times of need.

How do planes defy gravity?

They don't defy gravity. Gravitational attraction affects planes just like anything else. The wings of an aircraft generate lift which when the plane is going fast enough is a stronger force than the gravitational attraction of the earth. To do this the wings split the air flow going over it into an upper and lower part. Because the wing is curved it forces the air to travel further when it flows over the wing than when it flows under. The molecules of the air in the upper part are therefore slightly separated out from each other which creates a small vacuum effect. The wing rises to fill this vacuum pulling the aircraft up with it.

What do you call a mass movement of land due to gravity?

A mass movement of land due to gravity is called a landslide. It occurs when materials like rocks, debris, and soil move downslope under the force of gravity, often triggered by factors like heavy rain, earthquakes, or human activities.

What did he do with the gravity?

Gravity is the resulting force created, as infinitely smaller and smaller masses orbit larger masses in space, which allows matter to become compacted into smaller and more dense proximity, and at the same time, creating a relative void in space, which causes the less massive of two bodies in space, to continually fall toward the more massive body in space.

Why is a fluted filter paper used in gravity filtration?

By fluting the filter paper we can maximize the rate at which the solvent may flow through the filter paper. This will increase the surface area of the air flown into the flask along the sides to permit rapid pressure equalization.

What is central of gravity?

The center of gravity is the point where the entire weight of an object can be considered to act. It is the point at which an object is in perfect balance and will remain stable if supported at that point. The center of gravity is important in understanding the stability and equilibrium of physical objects.

What does ethical gravity mean?

ethical griavity i not a word well it is but it is not a true form of science to ethicalate gravity is to changeits direction wich is impossible

What is a star in which light cannot escape because of the immense gravitational pull at its surface called?

A star in which light cannot escape because of its immense gravitational pull at its surface is called a black hole.

How does gravity maintain the shape of the solar system?

Gravity is the force that keeps celestial bodies in orbit around the Sun. The gravitational pull of the Sun keeps planets moving in their elliptical orbits, maintaining the overall shape of the solar system. Without gravity, the planets would not stay in their stable paths around the Sun.

Which planet has the most gravity?

The answer is actually Jupiter.
The acceleration due to gravity is greater on the surface of Jupiter than it is

at the surface of any other planet in our solar system (assuming that a surface

can be defined for each planet).

Are we still researching gravity today?

Yes, gravity is still not fully understood. One theory still being researched is the existence of a particle called the graviton which could be the cause of gravitational attraction between bodies.

The sole hold-out in the Grand Unification Theory is Gravity. Einstein tried to solve it and failed.

Why does gravity never repels?

Gravity is a fundamental force of attraction between objects with mass. It always attracts objects toward each other due to the curvature of spacetime caused by massive objects. There is no known mechanism for gravity to repel objects.

Is there a link to planet size and its gravity?

Yes. To be clear, we have to consider size and mass separately. The gravity of an object increases with greater mass, but decreases with greater distance from the center

If two planets have the same mass, but different sizes (meaning they have different densities) then the larger planet will have weaker gravity because the surface is farther from the center.

Traditionally, the equation for finding the acceleration due to gravity is:

g=G*m/(r^2)

where G is a constant calculated to get the correct units, m is the mass in kilograms, and r^2 is the square of the distance from the center of mass as measured in meters. For finding the surface gravity of a planet, us the planet's radius for r.

However, you can use a shortcut of this equation by tweaking the units:

g=M/(R^2) where M is mass in Earth masses and R is the radius in Earth radii. By plugging in the mass and radius of a planet relative to that of Earth, you get gravity relative to Earth's surface gravity.

For example, Jupiter is 318 times the mass of Earth and has about 11.2 times the radius. If we plug that into our equation g=318/(11.2^2)= 318/125.44 = 2.53. So Jupiter's "surface" gravity is about 2.5 times that of Earth.

Where does gravity pull towards?

The further from the earth that you are the less gravity acts on you. This is because the object with the greatest mass in this case the earth pulls you to it. This is why when you drop a pencil it falls to the floor instead of flyin back to your hand.

Why does the force of gravity do no work on a bowling ball rolling down a bowling alley?

Work is definied in Physics as the Force acting on an object times the distance the object is moved by that Force, or W = fd

Since Force is mass times acceleration (F=ma), and because the ball is on a surface that is perpendicular to the force exerted by gravity, there is no gravitational acceleration (a), hence no Force, so no Work is done by gravity.

What is the acceleration due to gravity near the earth's surface?

9.81 m/s2

gravity is dependant on the total mass of the two bodies, and the distance between their mass centers, and irrespective of any motion or rotation on earth, their would be a very small acceleration due to rotation about the earths axis (0 at the poles , maximum at the equator) , but this is a totally seperate issue

What is the purpose of gravity?

Gravity is a fundamental force of nature that attracts objects with mass towards one another. Its purpose is to create a stable environment by keeping astronomical bodies in their orbits, allowing planets to revolve around stars and creating the structure of galaxies. It also enables life on Earth by keeping our atmosphere in place and regulating the movement of tides.

How far above the table's surface is the center of gravity of the combined object?

To take a riff on the common comedy bit: How long is a piece of string?

It depends on the composition and mass distribution of your table and your object.

If a mineral is 10 times heavier than water what is its specific gravity?

The specific gravity of a mineral that is 10 times heavier than water would be 10. Specific gravity is a unitless measure that compares the density of a mineral to the density of water, which is 1 g/cm3.