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What are 2 factors that determine why planets differ?
density and gravitational pull
Does the gas around the planets make them move?
No, it's the Sun's gravitational pull that keeps the planets in their orbits. Each planet has its own graviational field and it if it strong enough it retains the planet's atmosphere.
Which force affects the motion of planets?
The motion of the planets are governed by a number of factors: Gravity - The planets are being pulled towards the Sun in free fall. The velocity of the planets - This balances against the force of gravity opposing it and producing on balance the orbit. The mass of the planets. The effect of gravitational attraction between the planet and any satellites it has. The effect of gravitational attraction between the planets and other planets/dwarf planets etc.
Is a force of attraction and can be different on other planets?
Gravity.
Why can't you determine the size of the planets?
But you CAN determine the size of the planets: in diameter, overall mass, and in density.
What is the gravitational attraction between planets and sun?
The gravitational attraction between planets and the Sun is dependent on their masses and the distance between them. According to the law of universal gravitation, this attraction is stronger when the masses are larger and closer together, resulting in the planets orbiting the Sun in stable paths.
How can you determine the actual masses of planets?
the effect it has on other planets
Why do small planets have weak gravity?
Gravitational attraction is proportional to mass.
What are the release dates for Battle of the Planets - 1978 Magnetic Attraction - 1.20?
Battle of the Planets - 1978 Magnetic Attraction - 1.20 was released on: USA: 12 February 1979 Netherlands: 6 May 1981
What holes our plants in orbits?
The gravitational attraction from our Sun holds the planets in orbit.
What are the release dates for Battle of the Planets - 1978 Magnetic Attraction 1-20?
Battle of the Planets - 1978 Magnetic Attraction 1-20 was released on: USA: 12 February 1979 Netherlands: 6 May 1981
What were the two factors Isaac Newton concluded that combined to keep the planets in orbit?
Isaac Newton concluded that the force of gravity and the forward motion of the planets combined to keep them in orbit around the Sun. The force of gravity pulls the planets towards the Sun, while the forward motion of the planets creates the centrifugal force that counteracts gravity, leading to stable orbits.
