# Hacktivateed

## How does gravity affect the orbit of planets?

The sun’s gravity pulls the planet toward the sun, which changes the straight line of direction into a curve. This keeps the planet moving in an orbit around the sun. Because of the sun’s gravitational pull, all the planets in our solar system orbit around it.

### What would happen to the orbit if there was no gravity?

When astronauts go into space where there is less gravity, they lose bone and muscle mass and can lose their sense of balance. If the Earth’s gravity is lost, all items held to the Earth’s surface by gravity would float away. That includes the atmosphere, water, people, cars and animals.

#### What happens to the force of gravity between two masses If one mass is increased?

Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. So as the mass of either object increases, the force of gravitational attraction between them also increases.

What would happen if the force of gravity between the sun and planets was suddenly turned off?

If gravity is stopped suddenly then the planets will shoot out of orbits in straight lines and travel till collision or naturally slow down.

Where is gravity strongest on earth?

Lots of places state that the Earth’s gravity is stronger at the poles than the equator for two reasons:

• The centrifugal force cancels out the gravity minimally, more so at the equator than at the poles.
• The poles are closer to the center due to the equatorial bulge, and thus have a stronger gravitational field.

## What are the three effects of gravity?

The Sun’s gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun AND the Earth. The Moon’s gravity pulls on the Earth and makes the tides rise and fall every day. The tides are independent of the phase of the moon.

### What would happen if gravity stopped for 1 second?

When gravity disappears for 1 second the outwards force balanced by the gravity would be released causing a massive explosion. In other star systems with more immense stars and natural phenomena such as pulsars and and especially black holes the explosions and expansions would be greater.

#### Does zero gravity exist?

Contrary to popular belief, there’s no such thing as zero gravity. The earth’s gravity keeps the moon in orbit. And astronauts are generally much closer to earth than the moon is, which means that the earth’s pull on them has to be much stronger.

What happens to the force of gravity when mass decreases?

The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them. This means that the force of gravity increases with mass, but decreases with increasing distance between objects.

What makes a gravitational force noticeable?

He stated that the gravitational force depends on two factors. These factors are the masses of the objects and their distance from one another. More massive objects attract one another more than less massive ones… … and objects experience greater effects of gravity when they are nearer to each other.

## What will happen if the gravity on Earth was suddenly turned off?

If the Earth’s gravity did just suddenly disappear we would no longer have a force keeping us on the ground. The Earth would keep spinning, as it does, but we would no longer move with it; instead we would move in a straight line, upwards.

### Where is Earth’s gravity weakest?

the equator
The force of gravity is weakest at the equator because of the centrifugal force caused by the Earth’s rotation and because points on the equator are furthest from the center of the Earth. The force of gravity varies with latitude and increases from about 9.780 m/s2 at the Equator to about 9.832 m/s2 at the poles.