Gravity in Our Galaxy

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the order of the planets from the sun?

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Front

How does mass affect gravitational force?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is orbital speed?

Back

Orbital speed is the speed at which an object travels around another object in space due to gravitational forces.

Front

Which planet has the greatest gravitational force if all have the same diameter?

Back

The planet with the greatest mass will have the greatest gravitational force.

Front

Why does the moon orbit the Earth instead of the sun?

Back

The moon is closer to the Earth, so the Earth's gravity has a greater effect on it than the sun's gravity.

Front

What is the relationship between distance from the sun and orbital speed?

Back

The farther a planet is from the sun, the slower its orbital speed.

Front

What is a black hole?

Back

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is the role of the sun's gravity in the solar system?

Back

The sun's gravity holds the planets in orbit around it.

Front

What is the effect of gravity on stars in our galaxy?

Back

Stars in our galaxy are held in orbit by the gravitational pull of unseen objects, such as black holes.