What is Gravity

The video explains gravity as a long-range attractive force between objects with mass, keeping us grounded and celestial bodies in orbit. It highlights Newton's discovery that gravitational force decreases with distance and is proportional to mass. The video also clarifies that gravity affects not just mass but energy, bending light and trapping it in black holes.

What role does gravity play in the solar system?

• It repels planets away from the sun.

• It keeps the Earth in orbit around the sun.

• It causes the sun to move away from the galaxy.

• It has no effect on the solar system.

According to Newton, how does the strength of gravity change with distance?

• It remains constant regardless of distance.

• It decreases with the square of the distance.

• It doubles with every unit of distance.

• It increases with the square of the distance.

Why do we feel Earth's gravitational pull more than the moon's?

• Earth's gravity is weaker but more noticeable.

• The moon's gravity is stronger but less noticeable.

• The moon is more massive than Earth.

• Earth is closer and more massive than the moon.

What does gravity attract besides massive objects?

• Only objects with no energy.

• Only other massive objects.

• Light and other energetic particles.

• Only objects within the solar system.

How can gravity affect light?

• It can make light travel faster.

• It can bend light or trap it in black holes.

• It has no effect on light.

• It can change the color of light.