Understanding Gravity Quiz

What is the force of gravity acting on two masses called?

• Electromagnetic force

• Weak nuclear force

• Gravitational force

• Strong nuclear force

Which scientist is credited with the discovery of the law of universal gravitation?

• Albert Einstein

• Isaac Newton

• Galileo Galilei

• Nikola Tesla

The gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Which equation represents this principle?

• Gravitational acceleration

• Universal gravitational constant

• Gas constant

• Geometric constant

Which of the following is NOT true about gravity?

• Gravity acts at a distance.

• Gravity only affects objects with mass.

• Gravity is the weakest of the four fundamental forces.

• Gravity can be shielded or blocked.

What happens to the gravitational force between two objects if the distance between them is doubled?

• It is halved.

• It stays the same.

• It is doubled.

• It is reduced to a quarter.

According to Einstein's theory of general relativity, what causes gravity?

• The electromagnetic force between masses

• The curvature of space-time by mass

• The exchange of gravitons between objects

• The centrifugal force of the Earth's rotation

Which of the following planets exerts the strongest gravitational pull at its surface?

• Earth

• Mars

• Jupiter

• Venus

What is the acceleration due to gravity on Earth's surface?

If the mass of the Earth were to suddenly double while the radius remained the same, what would happen to the acceleration due to gravity on the surface?

• It would remain the same.

• It would halve.

• It would double.

• It would quadruple.