COT - QUIZ NO. 6: General Physics 2 (March 11, 2025)

Which formula correctly represents rest energy?

• E = mv²

• E = mc²

• E = mc³

• E = m/v

As an object approaches the speed of light, its mass appears to:

• Decrease

• Remain constant

• Increase

• Become zero

If a spaceship travels at 0.95c, what happens to time inside the ship relative to an observer at rest?

• It passes faster

• It stops

• It passes slower

• It remains unchanged

Why is it crucial to account for relativistic effects in GPS (Global Positioning System) satellites?

• To improve the aesthetics of the satellite design.

• Because the satellites experience significant time dilation due to their high velocity and weaker gravitational field, which would lead to large positioning errors if not corrected.

• To reduce the satellite's mass.

• Relativistic effects are negligible and do not affect GPS accuracy.

An electron moving at 0.99c will have a Lorentz factor of approximately:

• 1

• 7

• 2

• 0.5