UNIVERSE
METEOROIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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size and color
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number of moons and distance from the Sun
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rotation and revolution
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inertia and gravity
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Detailed explanation-1: -Newton concluded that two factors-inertia and gravity– combine to keep Earth in orbit around the sun, and the moon in orbit around Earth.
Detailed explanation-2: -This balance of gravity and inertia is really important to how the planets move. These two forces create our solar system orbits.
Detailed explanation-3: -The force of gravity pulls a planet toward the Sun. Inertia keeps a planet moving in a forward direction. When the force of gravity balances a planet’s inertia the result is circular motion. A planet needs to be moving at just the right speed to stay in orbital motion around the sun.
Detailed explanation-4: -These forces of inertia and gravity have to be perfectly balanced for an orbit to happen. If the forward movement (inertia) of one object is too strong, the object will speed past the other one and not enter orbit.