Table of Contents
- 1 What is the relationship of the mass of a planet and the amount of gravity it has?
- 2 How does mass affect the rotation of planets?
- 3 What is the relationship between mass and weight?
- 4 What is the relationship between the mass of a planet space object and the weight of the ball?
- 5 How do mass and distance affect gravitational attraction between objects?
- 6 What role does mass play in the gravitational forces that hold the solar system together?
- 7 What is the relationship between the size and mass of planets?
- 8 How long does it take for a planet to rotate?
What is the relationship of the mass of a planet and the amount of gravity it has?
The more massive a planet or star is, the stronger the gravitational force it exerts. It is this force that allows a planet or star to hold other objects in their orbit.
How does mass affect the rotation of planets?
Indeed, only the mass of the Sun is significant in a Keplerian planet’s orbital velocity. Yes, a very large massive planet has lower orbital velocity than if it were small, and that velocity goes with an orbital motion around the center-of-mass of the system (a ‘fixed’ point in space).
What is the relationship between gravity and the motion of the objects in our solar system?
The Sun’s gravity pulls the planets in orbit around it, and some planets pull moons in orbit around them. Even spacecraft are in motion through the solar system, either in orbit around the Earth or Moon, or traveling to further worlds, because of gravitational forces.
What is the relationship between gravity mass and radius?
Therefore, the surface gravity of a planet or star with a given mass will be approximately inversely proportional to the square of its radius, and the surface gravity of a planet or star with a given average density will be approximately proportional to its radius.
What is the relationship between mass and weight?
In scientific contexts, mass is the amount of “matter” in an object (though “matter” may be difficult to define), whereas weight is the force exerted on an object by gravity.
What is the relationship between the mass of a planet space object and the weight of the ball?
Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.
What is the relationship between orbital motion and mass?
Assuming we are talking about the mass of the satellite (and not the mass of the body being orbited), mass does not affect the orbital speed.
What is the relationship between the speed of planets and their distance from the Sun?
A planet’s orbital speed changes, depending on how far it is from the Sun. The closer a planet is to the Sun, the stronger the Sun’s gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun’s gravitational pull, and the slower it moves in its orbit.
How do mass and distance affect gravitational attraction between objects?
The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them. This means that the force of gravity increases with mass, but decreases with increasing distance between objects.
What role does mass play in the gravitational forces that hold the solar system together?
According to theory, the reason mass is proportional to gravity is because everything with mass emits tiny particles called gravitons. These gravitons are responsible for gravitational attraction. The more mass, the more gravitons.
Is there a correlation between planet mass and planet radius?
Note at high masses, electron degeneracy pressure becomes important, so that with increasing mass the planet radius does not change. At highest masses, the radius actually shrinks with increasing mass.
How does the mass of the planets relate to the acceleration due to gravity on each object?
In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2….Calculating g on Other Planets.
| Planet | Venus |
|---|---|
| Radius (m) | 6.073 x 106 |
| Mass (kg) | 4.88 x1024 |
| g (m/s2) | 8.83 |
What is the relationship between the size and mass of planets?
The size and mass of a planet have nothing to do with their rotation speed or their orbital speed. Orbital speed is controlled solely by their mean distance from the sun. The controlling relationship is P = a^ (3/2), where P is the period in years, and a is the semi-major axis of the orbit in astronomical units.
How long does it take for a planet to rotate?
The rotation speed of a planet is less obvious. It simply depends on the conditions under which it condensed out of the primordial gas cloud which formed the solar system. Periods vary from 9.8 hours for Jupiter, to 243 days, for Venus; with no correlation between periods and mass, physical size or orbital speed,
What is the relationship between orbit speed and period in years?
Orbital speed is controlled solely by their mean distance from the sun. The controlling relationship is P = a^ (3/2), where P is the period in years, and a is the semi-major axis of the orbit in astronomical units. This relationship was discovered by Kepler and is known as Kepler’s Third Law of Planetary Motion.
Does the mass of a planet affect orbital speed around the Sun?
The actual answer is YES, the mass DOES affect orbital speed around the Sun. where m1 is the mass of the Sun and m2 is the mass of the planet. The mass of the largest planet, Jupiter, is only about 1/1000 that of the Sun, the mass of Earth is about 1/330,000 the mass of the Sun.