IB Physics C1: Orders of magnitude

What is the order of magnitude of the mass of an electron in grams?

• 10^-16

• 10^-3

• 10^-31

• 10^-27

What is the order of magnitude of the mass of a proton in kilograms?

• 10^-31

• 10^-24

• 10^-27

• 10^-52

What is the order of magnitude of the number 0.0024?

• 10^-2

• 10^-3

• 10^-4

• 10^-5

What is the order of magnitude of the mass of the Earth in kilograms?

• 10²⁴

• 10²⁵

• 10²⁶

• 10²⁷

How does the order of magnitude of the Earth compare to that of the Sun?

• They have the same order of magnitude

• The Sun is 6 orders of magnitude heavier than the Earth

• The Sun is 10 orders of magnitude heavier than the Earth

• The Sun is 9 orders of magnitude heavier than the Earth

What is the order of magnitude of the mass of the milky way galaxy in kilograms?

• 10⁴⁴

• 10⁴³

• 10⁴²

• 10⁴¹

What is the order of magnitude of the mass of the Universe in grams?

• 10⁵⁵

• 10⁷⁹

• 10⁶³

• 10²⁹

What is the order of magnitude of the radius of a proton in meters?

• 10^-15

• 10^-14

• 10^-27

• 10^-9

What is the order of magnitude of the radius of an atom in meters?

• 10^-10

• 10^-12

• 10^-20

• 10^-13

What is the order of magnitude of the radius of the Earth in meters?

• 10¹⁴

• 10⁶

• 10⁷

• 10¹²