Table of Contents
Does the size of a planet determine the gravity?
A planet’s size and mass determines its gravitational pull. A planet’s mass and size determines how strong its gravitational pull is. Models can help us experiment with the motions of objects in space, which are determined by the gravitational pull between them.
How does the size of a planet affect the gravity on the planet?
The bigger the mass, the stronger the gravity. This is direct and unavoidable. The bigger the size for a given mass, the smaller the gravity, since you are farther from the center of mass (the center of the planet).
Can a small planet have strong gravity?
Because it is traveling so much faster than the earth, with its regular orbits around the earth on top of the distance the earth travels around the sun. You have to do the math with actual values, but in general, yes small planets can have bigger gravity if they are denser.
How do planets get gravity?
Gravity creates stars and planets by pulling together the material from which they are made. Gravity not only pulls on mass but also on light. Albert Einstein discovered this principle. If you shine a flashlight upwards, the light will grow imperceptibly redder as gravity pulls it.
What causes a planet to have more gravity?
Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is.
What other planets have gravity?
The Gravity of Different Planets
- Mercury: 0.38 g.
- Venus: 0.9 g.
- Moon: 0.17 g.
- Mars: 0.38 g.
- Jupiter: 2.53 g.
- Saturn: 1.07 g.
- Uranus: 0.89 g.
- Neptune: 1.14 g.
Why is there no gravity on other planets?
Because space is relatively empty, there is little air to feel whooshing past you as you fall and there are no landmarks to indicate you are moving. The second reason that gravity is not so obvious in space is because objects tend to orbit planets instead of hitting them.