Rocky objects moving around the sun (in a belt between the inner and outer planets) that are too small and too numerous to be called planets are called asteroids.
A chunk of rock or dust in space is called a meteoroid.
A streak of light caused by the burning up of a rock is a meteor.
A meteorite is what is left if a meteor passes through Earth’s atmosphere and lands on our surface.
Coma, nucleus, and tail are the three main parts of a comet.
a. Earth’s gravity pulls the moon toward it.
d. Inertia keeps the move moving ahead.
If mass increases and distance stays the same, then the force of gravity between the two objects increases.
If mass decreases and distance stays the same, then the force of gravity between the two objects decreases.
