erg

/ə:g/ Cách viết khác : (ergon) /'ə:gɔn/

Thân thiện

An erg is a very small unit of energy, like the work done to lift a paperclip.

Definition

1. Noun:
   • A cgs unit of work or energy: An erg is a unit of measurement for work or energy in the centimeter-gram-second (cgs) system of units. It is defined as the amount of work done when a force of one dyne is applied to move an object over a distance of one centimeter in the direction of the force.

Examples of Usage

• Noun:
  • In physics class, we learned that one erg is equal to 10^-7 joules.
  • The energy required for that microscopic movement is measured in ergs.

Advanced Usage

• Scientific Context: The is a very small unit of energy, primarily used in scientific fields like physics and astronomy, especially within the cgs system. It is largely obsolete in many modern applications, having been superseded by the joule in the International System of Units (SI).
  • Astronomers sometimes still use ergs when describing the energy output of stars.

Variants and Related Words

• Ergon (n): An alternative, less common spelling for .
• Dyne (n): The cgs unit of force; one is the work done by one dyne over one centimeter.
• Joule (n): The SI unit of work or energy; one joule is equal to 10,000,000 (10^7) .

Synonyms

• Unit of energy: A general term for any standard measure of energy, such as a joule or calorie. (Note: This is a descriptive synonym, not a direct numerical equivalent.)

Related Phrases

• Erg per second: A unit of power in the cgs system, where power is the rate of doing work or using energy.
  • The motor's output was a mere few ergs per second.

Học thuật

Noun

1. a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter