Earth has a radius of about 6400 km,the sun has a radius of about 7.0*5 km,and a rubber ball has a radius of 6.4 cm.If you were to construct a scale model of the solar system using the rubber ball to represent the earth,what is the radius of a ball needed to represent the sun in your model? A) 7.0*10⁵ cm B) 7.0 cm C) 700 cm D) 70 cm E) 7000 cm

Question

Quizplus · Accepted Answer

The scale factor between the Earth and the rubber ball is 6400 km to 6.4 cm, which is 1 km to 0.001 cm. Applying this scale to the sun's radius (7.0 x 10^5 km), the model sun's radius would be 7.0 x 10^5 km x 0.001 cm/km = 700 cm.

Earth Has a Radius of About 6400 Km,the Sun Has