UALR (just outside the Physics Building): Latitude = 34 43′ 10.5” Longitude = 92 20′ 39.0” Intersection of I 40 and I 430: Latitude = 34 49 ‘ 08.2…

UALR (just outside the Physics Building):Latitude = 34° 43’ 10.5’’ Longitude = 92° 20’ 39.0’’

Intersection of I40 and I430: Latitude = 34° 49 08.2’’ Longitude = 92° 20 39.0

Distance between the two points = 11.1 km

Circumference of Earth (round to nearest km): __________ km (Show calculation.) and then (Explain clearly in words the concepts behind the calculation.)

Radius of the Earth (round to nearest km): __________ km (Show calculation.)

Percent error (Express as a percentage, one decimal place): __________ % (Show calculation.) 

Record and/or calculate the following (round to one decimal place): Proportional diameter of the Moon: __________ cm

Proportional diameter of the Earth: __________ cm

Ratio of (Proportional Diameter of Earth)/(Proportional Diameter of Moon): ________ (Show calculation.)