ˈkɪˌloʊ) One thousand grams; the basic unit of mass adopted under the Systeme International d’Unites. Synonyms. key hectogram myriagram kg hg kilogram metric weight unit myg weight unit. Antonyms. atonality unimportant.

In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for kilogram, like: gram, cubic foot, ton, tonne, liter, hundredweight, 50kg, gramme, kilogramme, kilo- and kg.

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There are no categorical antonyms for kilogram.

Kilogram (kg), basic unit of mass in the metric system. A kilogram is very nearly equal (it was originally intended to be exactly equal) to the mass of 1,000 cubic cm of water. The pound is defined as equal to 0.45359237 kg, exactly.

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mass

The greatest advantage of SI is that it has only one unit for each quantity (type of measurement). This means that it is never necessary to convert from one unit to another (within the system) and there are no conversion factors for students to memorize. For example, the one and only SI unit of length is the metre (m).

Work is the measure of energy transfer when a force (F) moves an object through a distance (d). So when work is done, energy has been transferred from one energy store to another, and so: energy transferred = work done.

Use a vocabulary strategy to help you remember mechanical energy. The total amount of energy is constant. You know that energy is transferred when work is done. No matter how energy is transferred or transformed, all of the energy is still present somewhere in one form or another.

Energy transformation

Heat can be transferred in three ways: by conduction, by convection, and by radiation.

• Conduction is the transfer of energy from one molecule to another by direct contact.
• Convection is the movement of heat by a fluid such as water or air.
• Radiation is the transfer of heat by electromagnetic waves.

Energy can be converted from one form to another. Examples: Gasoline (chemical) is put into our cars, and with the help of electrical energy from a battery, provides mechanical (kinetic) energy. Purchased electricity is fed into our TVs and is converted to light and sound.

One of the most common energy transformations is the transformation between potential energy and kinetic energy. In waterfalls such as Niagara Falls, potential energy is transformed to kinetic energy. The water at the top of the falls has gravitational potential energy.

Many forms of energy exist, but they all fall into two basic categories:

• Potential energy.
• Kinetic energy.

Energy comes in six basic forms: chemical, electrical, radiant, mechanical, thermal and nuclear.