¿La gravedad existe? Realmente es una fuerza

The video explores the concept of gravity, starting with Newton's laws and moving to Einstein's theory of relativity. It explains the equivalence principle, the curvature of space-time, and how gravity affects light and time. The video also discusses the anomalies in Newton's theory and how Einstein's theory provides a more comprehensive explanation.

According to Newton, how is the strength of gravitational force between two objects determined?

• It is directly proportional to the distance between them.

• It is inversely proportional to the product of their masses.

• It is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

• It is inversely proportional to the square of their masses.

What anomaly in Mercury's orbit could not be explained by Newton's theory?

• Its elliptical shape

• Its distance from the Sun

• Its speed

• Its precession

What principle suggests that gravity and acceleration are indistinguishable?

• The principle of relativity

• The equivalence principle

• The conservation principle

• The inertia principle

In Einstein's theory, what is gravity considered to be?

• A type of energy

• A force

• A curvature of space-time

• A magnetic field

What is a geodesic in the context of space-time?

• A straight line in curved space-time

• A straight line in flat space

• A circular path in space

• A curved line in a 3D space

How does mass affect space-time according to Einstein?

• It flattens space-time

• It distorts space-time

• It has no effect on space-time

• It creates a new dimension

Why does a clock run slower on Earth compared to space?

• Due to Earth's rotation

• Because of gravitational time dilation

• Because of atmospheric pressure

• Due to the Earth's magnetic field