Author Question: What is proper time? a. Proper time is the time measured by a clock at rest with respect to the ... (Read 78 times)

elizabeth18 · **on:** Jul 28, 2018

What is proper time?
a. Proper time is the time measured by a clock at rest with respect to the observer.
b. Proper time is time based on your actual longitude, not your time zone.
c. Proper time is the time given on your GPS.
d. Proper time means standard time as opposed to daylight savings time.

Question 2

An astronaut is traveling at a high rate of speed from the Earth to a distant star system. Observers here on Earth note the relativistic effect that the astronaut's clocks run slow. What relativistic effect, if any, does the astronaut observe?
a. Her pulse rate slows.
b. The distance from the Earth to the star system has decreased. c. Her clocks run faster.
d. There is no relativistic effect to be observed by the astronaut since she is the one doing the moving.