Make all capitalization consistent with the rules of convention outlined in the American Heritage Dictionary. DO capitalize: The first word and any proper nouns in a title, heading, or subheading. Proper nouns, months, days of the week, but not the seasons.
Newton (unit) The newton (symbol: N) is the SI unit of force. It is named after Sir Isaac Newton because of his work on classical mechanics. A newton is how much force is required to make a mass of one kilogram go faster at a rate of one metre per second squared.
Answer 4: A Newton is the basic unit of force in the MKS (meter-kilogram-second) unit system. If you remember F=ma and the acceleration has units of m/sec^2 you might guess (correctly) that a Newton is 1 kg*m/sec^2. Or, it is the amount of force to accelerate a 1 kg object to a velocity of 1 m/sec in one second.