Well sometimes it is and sometimes it isn't. That old saying is not nessary true. Because there are plenty of planets in the universe that are the same size as earth but have less gravity than earth.
No, the more mass of an object the more gravity it exerts.
True. The gravitational force between two planets is directly proportional to the product of their masses. So, the greater the mass of a planet, the stronger its gravitational pull towards another planet.
Yes, that is correct. The force of gravity between two objects is directly proportional to the product of their masses. Therefore, an object with more matter will have a greater gravitational pull on it compared to an object with less matter.
True. Scientists believe that Mercury's thin atmosphere is the result of most of its original gases escaping into space due to the planet's low gravity and proximity to the sun.
I'm not sure if it's half or not, probably less, but the only possibility would be Mercury. True. Mercury is the only one. Gravity on Mercury's surface is 37% of what it is on Earth. Except for Mars, where it's 38% of its value on Earth. Mercury and Mars are the only ones. Except for Pluto, where it's 4% of its value on Earth.
For the most part, yes. But the actual determining factor for how much gravity a planet has is based on its mass, and since size and mass are often related it is somewhat accurate to say that the bigger the planet is, the more gravity it will have.
that is not true
Gravity is stronger on some planets because the planet's core is much more dense. Making it's gravitational pull stronger. Which is making gravity stronger. that is sortof true
No, that's not true. All planets, moons, and stars have gravity. Actually all objects have gravity, it's just not very strong for small objects.
A planet must be large enough for its gravity to pull it into a nearly round shape. In our solar system, a planet needs to have cleared its orbit of other debris to be considered a true planet.
No. The surface gravity of a planet depends on its size and mass, not its distance from the sun.
No, the more mass of an object the more gravity it exerts.
No.
True. The gravitational force between two planets is directly proportional to the product of their masses. So, the greater the mass of a planet, the stronger its gravitational pull towards another planet.
Not a chance
The extra gravity from the electron/nucleus attraction , even tho it is tiny, will add up when trillions of attoms from a planet, asteroid, or sun to form a gravity shield around the object. the more attoms there are, the greater the attraction.
Yes. Gravity is inversely proportional to distance.