What is Gravity?

The video explores gravity as a long-range attractive force affecting all objects with mass and energy. It discusses how gravity keeps celestial bodies in orbit and how every object in the universe is gravitationally attracted to each other. Isaac Newton's discoveries about the inverse square law and the proportionality of gravitational force to mass are highlighted. The video also explains that gravity affects not only massive objects but also light and energetic particles, leading to phenomena like light bending around the sun and being trapped by black holes.

What role does gravity play in the solar system?

• It keeps the Earth in orbit around the sun.

• It makes the sun rise in the east.

• It prevents the sun from shining.

• It causes the Earth to rotate on its axis.

According to Newton, how does the gravitational force change with distance?

• It decreases with the square of the distance.

• It remains constant regardless of distance.

• It doubles with every unit of distance.

• It increases with the square of the distance.

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

• The moon has more mass but is farther away.

• The Earth has more mass and is closer.

• The Earth is smaller but closer.

• The moon is larger but farther away.

What additional type of objects does gravity attract besides those with mass?

• Objects with temperature

• Objects with sound

• Objects with energy

• Objects with color

How can gravity affect light?

• It can stop light completely.

• It can make light change color.

• It can increase the speed of light.

• It can bend light slightly.