•4. If
sunlight takes just over 8 minutes to travel from the Sun to the Earth, how long does moonlight take to travel from the Moon to the Earth? To find this, use information about the relative distance of the moon and the sun which you can find in your text (Appendix A for instance).
a. 0.0025 seconds
b. 0.12 seconds c. 1.2 seconds d. 8
minutes e. 20.5 minutes
•
•The numbers in the textbook show that the
moon is about 400 times closer to the Earth than the sun (dmoon/dsun ~ 400).
8 minutes is 480 seconds. 1/400
of 480 seconds is 1.2 seconds.