**Definitions:**

**Newton** (abbreviation: **N**): is the International System of Units (SI) derived unit of force. It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion. One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in direction of the applied force.

**Atomic Mass Unit** (abbreviations: **amu, or u**): also known as dalton (symbol: Da), is a standard unit of mass that used on an atomic or molecular scale (atomic mass). One unified atomic mass unit is about the mass of one nucleon (either a single proton or neutron) and equivalent to 1 g/mol.

## How to Convert Newtons to Atomic Mass Units

*Example: How many atomic mass units are equivalent to 77.65 newtons?*

As;

1 newtons = 6.142770466979E+25 atomic mass units

77.65 newtons = Y atomic mass units

Assuming Y is the answer, and by criss-cross principle;

Y equals 77.65 times 6.142770466979E+25 over 1

(i.e.) Y = 77.65 * 6.142770466979E+25 / 1 = 4.7698612676092E+27 atomic mass units

Answer is: 4.7698612676092E+27 atomic mass units are equivalent to 77.65 newtons.

*Practice Question: Convert the following units into amu:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 39.23 n

( ii ) 38.49 n

( iii ) 54.41 n