(a) Conversion: 1 mile (mi) = 1.609344 kilometers (km) OR lkilometer (km) = 0.621371 mi The average distance from the centerof the Earth to the center of the Moon is 238,857 miles. ?Convert miles to kilometers. ?Round your answer to the nearest mile(NO decimal places). Express your answer as a regular (akafloating point number); do NOT use scientificnotation).

Ans. (a): ____________________________________________ km [4pts]


(b) Conversion: 1 Astronomical Unit (AU) = 149,597,870 kilometers(1.49597870 × 108 km) The average distance to the planet Saturn is9.529 AU. ? Convert AU’s to kilometers. ?Round youranswer to 2 decimal places. Express your answer in SCIENTIFICNOTATION (e.g., 2.52 ? 106).

Ans. (b): ____________________________________________ km [4pts]


(c) Conversion: K is Kelvin; °C is Celsius; °F is Fahrenheit Astronomers use the Kelvin scale. Note that the degree symbol isnot used with Kelvin degrees. From Kelvin to Celsius: [°C] = [K] ?273.15; From Celsius to Kelvin: [K] = [°C] + 273.15 From Kelvin toFahrenheit: [°F] = [K] ? 9?5 ? 459.67; From Fahrenheit to KelvinFrom Celsius to Fahrenheit: [°F] = [°C] ? 9?5 + 32; From Fahrenheitto Celsius: [°C] = ([°F] ? 32) ? 5?9 ? Humans radiate heat energyin the infrared part of the electromagnetic spectrum at about 310K. How many degrees is this in ? Celsius and ? Fahrenheit? [4pts] ?Round each answer to 1 decimal place. Express each answer asa regular number.

Ans. (c): ?________________________________________°C and ?________________________________________°F


(d) Conversion: 1 parsec (pc) = 3.26 l-y = 3.085678 ? 1013 km M4,the closest globular cluster to Earth is found in the constellationScorpius. M4 is 7,000 l-y distant. ? Convert that distance inlight-years to ? kilometers and ? parsecs. [6 pts] ?Round eachanswer to 2 decimal places. Express both answers inSCIENTIFIC NOTATION (e.g., 2.52 ? 106). Hint: Convert light-yearsto parsecs first; then convert parsecs to kilometers.

Ans. (d): ?_______________________________________ km ? _______________________________________ pc



? Use the conversion factors exactly as shown here ?
Be sure to convert your answer here to scientificnotation.