Quiz on Special Relativity

Who proposed the Special Theory of Relativity?

• Galileo Galilei

• Albert Einstein

• James Clerk Maxwell

• Isaac Newton

Which of the following is a fundamental postulate of special relativity?

• The speed of light depends on the observer's frame of reference

• The laws of physics are the same in all inertial frames

• Time flows at the same rate for all observers

• Faster-than-light travel is possible

What is the speed of light in vacuum?

• 3,000 km/s

• 30,000 km/s

• 300,000 km/s

• 3,000,000 km/s

What happens to time for an observer moving at relativistic speeds?

• It runs faster

• It runs slower

• It remains unchanged

• It reverses

What is the formula for mass-energy equivalence?

• E = mv²

• E = mc²

• E = mgh

• E = ½ mv²

What happens to the length of an object moving at speeds close to the speed of light?

• It increases

• It remains unchanged

• It decreases (length contraction)

• It becomes infinite

What is the effect called when two observers disagree on whether two events happen at the same time?

• Time dilation

• Length contraction

• Relativity of simultaneity

• Gravitational time dilation

If an observer moves at nearly the speed of light, what happens to their mass?

• It decreases

• It remains constant

• It increases

• It becomes zero

What experiment provided strong evidence for the constancy of the speed of light?

• Young's double-slit experiment

• Michelson-Morley experiment

• Rutherford gold foil experiment

• Cavendish experiment

What is an inertial frame of reference?

• A frame that is accelerating

• A frame moving at constant velocity or at rest

• A frame that is influenced by gravity

• A frame that moves faster than light