Length

Question 1

Distance from the Earth to most remote known quasar

Answer 1

1.4 x 10^(26)

Question 2

Distance from the Earth to most remote known normal galaxies

Answer 2

9 x 10^(25)

Question 3

Distance from the Earth to nearet large galaxy (M 31, the Andromeda galaxy)

Answer 3

2 x 10^(22)

Question 4

Distance from the Sun to the nearest star (Proxima Centuri)

Answer 4

4 x 10^(16)

Question 5

One lightyear

Answer 5

9.46 x 10^(15)

Question 6

Mean orbit radius of the Earth about the Sun

Answer 6

1.5 x 10^(11)

Question 7

Mean distance from the Earth to the Moon

Answer 7

3.84 x 10^(8)

Question 8

Distance from the equator to the North Pole

Answer 8

1.00 x 10^(7)

Question 9

Mean radius of the Earth

Answer 9

6.37 x 10^(6)

Question 10

Typical altitude (above the surface) of a satellite orbiting the Earth

Answer 10

2 x 10^(5)

Question 11

Length of a football field

Answer 11

9.1 x 10^(1)

Question 12

Length of a housefly

Answer 12

5 x 10^(-3)

Question 13

Size of the smallest dust particles

Answer 13

~10^(-4)

Question 14

Size of cells of most living organisms

Answer 14

~10^(-5)

Question 15

Diameter of a hydrogen atom

Answer 15

~10^(-10)

Question 16

Diameter of an atomic nucleus

Answer 16

~10^(-14)

Question 17

Diameter of a proton

Answer 17

~10^(-15)