Exploring Special Relativity Concepts

Which equation correctly expresses time dilation in special relativity?

• 6 years

• 10 years

• 16.7 years

• 8 years

Which of the following best describes length contraction?

• Objects appear longer in the direction of motion.

• Objects appear shorter in the direction of motion.

• Objects appear unchanged in length.

• Objects appear shorter perpendicular to the direction of motion.

The equation for length contraction is:

• 4 metres

• 3 metres

• 5 metres

• 2 metres

Which equation represents mass-energy equivalence?

• The charge of an electron

• The speed of light in a vacuum

• The speed of sound in air

• The acceleration due to gravity

Which of the following statements about simultaneity in relativity is correct?

• All observers agree on whether two events are simultaneous.

• Simultaneity is absolute and independent of the observer’s motion.

• Simultaneity depends on the observer’s frame of reference.

• Simultaneity only applies to stationary observers.

Two lightning bolts strike at either end of a moving train. Who will see the strikes as simultaneous?

• Only an observer on the train

• Only an observer on the ground

• Both observers

• Neither observer