Gravity

Zero gravity can affect the human mind in various ways, such as spatial disorientation, motion sickness, and changes in perception due to the lack of gravitational cues. Astronauts may experience shifts in their sense of balance and spatial awareness, leading to feelings of confusion or disorientation initially until they adapt to the new environment.

Earth's gravitational pull causes the ball to fall back down to the ground after being tossed. The strength of the gravitational pull determines how quickly the ball falls and how high it can be thrown.

Gravity's purpose is to provide a force that governs the motion of objects in the universe, keeping planets in their orbits around stars and holding galaxies together. It is a fundamental force of nature that helps shape the structure and behavior of celestial bodies.

In general, the thing that has the most mass has the most gravity. Mass and gravity are directly proportional. It's that simple. Gravity could be said to be a function of mass. Think about a few things and the mass and gravity associated with them.

A truck has more gravity than a person, who will have more gravity than a mouse. A skyscraper has more gravity than any truck, and the moon has more gravity than any building. The earth has more gravity than the moon, and Neptune has more gravity than earth. Jupiter has more gravity than Saturn, which has more gravity than Neptune. The sun has more still than Jupiter. The sun has more mass than all the planets put together, in fact. And then some!

There are many stars with a greater mass (and therefore greater gravity) than the sun, and black holes have enormous gravity that can easily exceed that of stars. Then there's something called a super-massive black hole, which has a really, really, really large amount of gravity.

Everything that has mass has gravity.

The force of gravity between every two masses depends on both of their

masses. Since it takes the whole earth to produce the force called your "weight"

between you and it when you're standing right on it, the mass of the space

vehicle that you're in doesn't produce much force between you and it.

Another problem is that there are parts of the rocket in every direction from you,

and a lot of those forces cancel each other.

So, technically, there is a force of gravity between the center of you and the

center of your space ship, but it's so small that you don't even notice it, and it

might as well not be there.

That's why whenever you see video from the crew of the Space Shuttle, you'll

notice that they're all holding onto things and staying in one place for the video,

but if you look closely, you'll notice that their hair is floating all over the place,

because there's practically zero force of gravity there.

If you imagine shooting a cannon at a horizontal level, you will see that the cannonball curves toward the Earth as it accelerates "downward" (i.e. toward Earth's surface.)

Now imagine this on a much bigger scale; as the object moves forward, it also get pulled down toward the Earth. Since the Earth itself is curved, the cannonball would never hit the ground. If it was going fast enough, it would simply fall into orbit.

For an illustration to accompany this, see:
http://upload.wikimedia.org/wikipedia/commons/7/73/Newton_Cannon.svg

The gravity on Uranus is weaker than the gravity on earth. There is a small core and a VAST amount of Liquid Hydrogen.

The gravity on Uranus is 8.69 m/s squared.

The gravity on Earth is 9.807 m/s squared.

The planets' gravity on the Sun is insignificant, compared to the Sun's mass; so, within the Solar System, it is (basically) the planets that orbit around the Sun.

On the other hand, the Sun - together with all the planets - orbits around the center of the Milky Way (our galaxy).

The planets' gravity on the Sun is insignificant, compared to the Sun's mass; so, within the Solar System, it is (basically) the planets that orbit around the Sun.

On the other hand, the Sun - together with all the planets - orbits around the center of the Milky Way (our galaxy).

The planets' gravity on the Sun is insignificant, compared to the Sun's mass; so, within the Solar System, it is (basically) the planets that orbit around the Sun.

On the other hand, the Sun - together with all the planets - orbits around the center of the Milky Way (our galaxy).

The planets' gravity on the Sun is insignificant, compared to the Sun's mass; so, within the Solar System, it is (basically) the planets that orbit around the Sun.

On the other hand, the Sun - together with all the planets - orbits around the center of the Milky Way (our galaxy).

of course it does, its gravity is keeping all of the planets, asteroids and comets orbeting

Because space doesn't have an atmosphere.

I disagree, it is due to the fact that most of Space is a vacuum and gravity only works between masses ad a vacuum is not a mass so depending on how far you are from mass, there is either very little gravity or none.

Because they are in orbit which means they have enough forward motion to keep them into a state of "Free Fall". A satellite is falling to earth's center due to gravity. But for every inch it falls toward earth, earth move out of it's way by one inch.

Yes the moon has gravity. How did neil Armstrong stand on it if no gravity?

Gravity is a characteristic of space. Because of it, every material object encounters a force of attraction
toward every other material object. That leads to some interesting consequences:

-- A satellite is attracted toward the earth.
-- You are attracted toward the earth.
-- The earth is attracted toward a satellite.
-- A satellite is attracted toward you.
-- The earth is attracted toward you.
-- You are attracted toward a satellite.
-- Two satellites are attracted toward each other.
-- You are attracted toward Mars.
-- The sun is attracted toward you.
-- The sun is attracted toward a satellite.
-- The sun is attracted toward my dog.
-- You are attracted toward my dog, and also toward the sun.
-- My dog is attracted toward Pres. Obama's golf balls.
.
.
.
etc.

A collapsed star is typically referred to as a black hole. Black holes form when massive stars run out of fuel and collapse under gravity, creating a region of spacetime with such intense gravitational pull that nothing, not even light, can escape from it.

You can look it up. If you mean, how do scientists figure it out, they will have to calculate, or estimate, Pluto's mass, and its diameter. Once these are known, the acceleration by gravity can be calculated very accurately. The real challenge lies in finding out those two things.

The diameter can be observed in high-resolution telescopes. With interferometry, a very accurate image can be obtained.

The mass can be calculated by its gravitational effect on other objects, includings its three moons. Perhaps New Horizons will be able to measure the mass more accurately, once it arrives.

Yes, Saturn's gravity is stronger than Earth's gravity. The surface gravity on Saturn is about 1.07 times that of Earth.

"Gravitational" refers to the force of attraction that exists between two objects due to their mass. This force is responsible for keeping planets in orbit around the sun and objects on Earth from floating off into space.

Yes, a sky would still exist even without gravity. Gravity is what holds our atmosphere close to Earth, but even without it, the atmosphere would still exist and interact with light to create the appearance of a sky.

Imagine a table cloth held on by each corner above the ground. This is the universe. Put an apple on it. This is a planet. The apple makes a dent. This is gravity. Put grapes on the cloth. These are smaller planets. They are drawn to the apple. Put a soccer ball on the cloth. This is a very large planet. Everything moves towards it. Gravity.

It is difficult to generalize whether humans are getting weaker or stronger overall. Factors like advancements in technology and healthcare may contribute to improved quality of life and physical health for some individuals. However, lifestyle changes, such as sedentary behavior and poor diet, can lead to decreased physical strength and overall health in others.

Yes, there is gravity on the Moon, but it is only about 1/6th of the gravity we experience on Earth. This is because the Moon is much smaller and less massive than Earth.

A geodesic dome gets stronger as it gets bigger due to its inherent structural stability and distribution of forces across its framework. The larger size increases the efficiency of the dome's design, making it more resilient to external stresses like wind and snow loads.

Jupiter's gravity is approximately 24.79 m/s² at its equator and 24.92 m/s² at its poles. This is about 2.5 times the gravity on Earth.