Understanding Gravity and Relativity

According to Newton, what happens to the gravitational force as the distance between two masses increases?

• It becomes zero.

• It decreases.

• It increases.

• It remains constant.

What was the main confusion about gravity that led to Einstein's theory?

• Why the Earth orbits the Sun.

• How gravity works over large distances.

• Why objects fall to the ground.

• How the moon affects tides.

How does Einstein describe the universe in terms of space-time?

• As a liquid ocean.

• As a solid block.

• As a fabric sheet.

• As a flat surface.

In Einstein's thought experiment, what is equivalent to free fall on Earth?

• Floating in water.

• Floating in space.

• Standing still.

• Running on a treadmill.

What happens to a light beam in an accelerating lift according to Einstein?

• It travels in a straight line.

• It bends.

• It accelerates.

• It stops moving.

What did Einstein's thought experiment with the elevator demonstrate?

• Light cannot travel in space.

• Gravity is stronger in space.

• Acceleration is equivalent to gravity.

• Mass does not affect gravity.

What was the outcome of Einstein's happiest thought?

• The invention of the telescope.

• The equivalence of free fall and weightlessness.

• The theory of special relativity.

• The discovery of black holes.

What was the significance of the solar eclipse experiment conducted by Arthur Eddington?

• It disproved Einstein's theory.

• It confirmed the bending of light by gravity.

• It showed that the sun is not a star.

• It proved that the Earth is flat.

What did Einstein's theory of general relativity explain about the universe?

• It is influenced by space-time curvature.

• It is made of dark matter.

• It is governed by Newton's laws.

• It is static and unchanging.

How did Einstein's theory change the understanding of gravity?

• It described gravity as a curvature of space-time.

• It equated gravity with magnetism.

• It eliminated the concept of gravity.

• It showed gravity as a force.