Gravity Quiz

Who formulated the inverse square law of universal gravitation?

• Aristotle

• Galileo Galilei

• Albert Einstein

• Isaac Newton

What is the weakest of the four fundamental interactions of physics?

• Strong interaction

• Electromagnetic force

• Gravity

• Weak interaction

What did Galileo postulate as the reason for objects with low density and high surface area falling more slowly in an atmosphere?

• Magnetic force

• Air resistance

• Buoyancy

• Friction

Who developed the theory of general relativity that described gravity as the curvature of space-time?

• Isaac Newton

• Galileo Galilei

• Albert Einstein

• Aristotle

What is the supermassive black hole at the center of the Milky Way galaxy called?

• Andromeda A

• Sagittarius A

• Centaurus A

• Virgo A

What is the range of gravity's effects as compared to the other fundamental interactions of physics?

• 1038 times weaker

• 1029 times weaker

• 1036 times weaker

• Infinite range

What is the current area of research in physics related to gravity and the other fundamental interactions?

• String theory

• Quantum mechanics

• Quantum gravity theory

• General relativity

What is the earliest instance of gravity in the universe possibly in the form of during the Planck epoch?

• Quantum gravity

• Supergravity

• Gravitational singularity

• All of the above

What did Newton call the phenomenon of gravity that he described as 'spooky'?

• Gravitational singularity

• Quantum gravity

• Action at a distance

• Curvature of space-time

What did Einstein describe as the cause of gravity in general relativity?

• Quantum gravity

• Action at a distance

• Curvature of space-time

• Force