gravity and motion

Planet X has a moon similar to Earth's moon. Which path would this moon's orbit take? [1/2/3] If for some reason, the planet is destroyed and no longer exists, which path would the moon take? [1/2/3]

3 2

The force that contributed to the formation of planets, determines the motion of bodies in the solar system, and pulls objects to the center of Earth is called .

gravity

The principle that states that an object at rest will stay at rest and that an object in motion will stay in motion is the law of .

intertia

Which factors determine how much gravity a body in the universe possesses? Check all that apply. inertia mass weight distance orbital motion

mass distance

An object's [mass/weight] will remain constant throughout the universe, but its [mass/weight] can change from planet to planet. If you increase the mass of a planet, what happens to its gravity? [strength of gravity increases/strength of gravity decreases/strength of gravity stops completely] If the gravity on a planet decreases, what happens to the weight of an object on that planet? [weight increases/weight decreases/weight stays the same]

mass weight strength of gravity increases weight decreases

Which force helps keep Earth in orbit? Earth's gravity the moon's inertia the Sun's gravity the Sun's inertia

the sun's gravity

Fredo's spaceship takes him to the very edge of known space. There, gravity has no effect at all. Fredo takes a baseball and tosses it into space. What will most likely happen to the ball? It will not move at all. It will return to Fredo's spaceship. It will eventually stop moving. It will continue moving in a straight line.

It will continue moving in a straight line.

The planets Hox and Blox are near each other in the Dorgon system. The Dorgons have very advanced technology, and a Dorgon scientist wants to increase the pull of gravity between the two planets. Which proposals would the scientist make to accomplish this goal? Check all that apply. decreasing the distance between Hox and Blox increasing the mass of Hox increasing the distance between Hox and Blox decreasing the mass of Blox increasing the mass of Hox and Blox decreasing the mass of Hox and Blox

decreasing the distance between Hox and Blox increasing the mass of Hox increasing the mass of Hox and Blox

In a far-off galaxy, an astronomer observes a moon orbiting a planet. The moon stays in orbit because of the planet's gravity. Which scenario would increase the gravity of the planet? decreasing the distance between the moon and the planet increasing the distance between the moon and planet increasing the planet's inertia increasing the moon's inertia

decreasing the distance between the moon and the planet