Question

Which measurement would be least likely to be written in scientific notation : # of stars in a galaxy, # of grains of sand on a beach, speed of a car, or population of a country?

Answer 1

Speed of a car should be the answer

Answer 2

Good night,

As we know scientific notation is used to express measurements that are extremely large or extremely small. The first two are extremely large, then, they could be expressed in scientific notation. If we compare the speed of a car and the population of a country, it is clear that the larger will be the population of a country. Therefore, it is more likely to express that in scientific notation, so the answer is the speed of a car.