Special Relativity Quiz True or False

1. According to Albert Einstein, time: -> is relative to the movement of the ether.
2. We run one mile in 8 minutes. Igor runs with us and covers half a mile in 8 minutes. What is his velocity relative to us? ->
3. 3) A light beam travels at a speed of .If the speed of sound is 340.29 , what is the value of β for sound? -> 1.13 × 10-6
4. Two clocks are synchronized with remarkable precision. One is put aboard the Concord, a jet that moves at the speed of sound (340.29 \; \mathrm{\frac{m}{s}}). One is left on Earth. The Concord flies around Earth 5 times. What can be said about the two clocks once the Concord lands back on Earth? -> Both time intervals will be the same, but their values will depend on whether the Concord flew in the same direction as Earth's rotation.
5. Twins both embark on the spaceship from Planet of the Apes, which travels at a speed of 0.9999837c and spend 5 years exploring space and 5 years coming back home. How much time has elapsed on Earth when they return? -> 1.75 years
6. What displacement did they travel aboard the spaceship from Planet of the Apes? -> 0 m
7. Two events occur at the same location but travel at less than c. These two events are: -> lightlike
8. An electron has a rest mass of and is accelerated to a speed of 0.8c. What amount of mass does it gain? ->
9. What amount of the electron's total energy is due to its velocity? -> 342.4 keV
10. What is the electron's momentum? ->

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