Specific may refer to:
- Specificity (disambiguation)
- Specific, a cure or therapy for a specific illness
YouTube Encyclopedic
-
1/3Views:275 898855 748225 814
-
Specific gravity | Fluids | Physics | Khan Academy
-
3 ways to Attract a Specific Person (or Ex) into your life using the law of attraction
-
How to be an effective speaker: BE SPECIFIC!
Transcription
[MUSIC PLAYING THROUGHOUT] What does "specific gravity" mean? The specific gravity of an object is the density of that object divided by the density of water. The density of water is 1,000 kilograms per meter cubed. For instance, the density of gold is 19,300 kilograms per meter cubed. So the specific gravity of gold is 19.3. The density of ketchup is 1,400 kilograms per meter cubed. So the specific gravity of ketchup up is 1.4. Note, there's no units for specific gravity, because it's the ratio of one density to another density. So the units cancel each other out. OK, so why even bother defining something called the specific gravity? Well, one really cool thing about specific gravity is that, for something that floats, the specific gravity tells you the fraction of that object that will be below the water while it's floating. For instance, say you let a cube of wood with specific gravity 0.2 float in water. Since the specific gravity is 0.2, that means that 20% of the total volume of this wood is going to be submerged below the water while it's floating. If the cube of wood had a specific gravity of 0.6, 60% of the wood would be submerged beneath the water's surface. Ice has a density of about 920 kilograms per meter cubed. That means ice has a specific gravity of 0.92. And that's why 92% of an iceberg's volume is actually underneath the water. But what if we were to use a cube that had a density of 2,700 kilograms per meter cubed? The specific gravity would be 2.7, which means that 270% of this cube would be submerged beneath the water. But you can't have more than 100% of an object submerged. Even if the object were to sink, the maximum amount submerged would be 100%. So if the specific gravity of an object is greater than 1, that object is going to sink if placed freely in water. And it'll have exactly 100% of its volume submerged. Usually when people are referring to the specific gravity, they're referring to the density of the object divided by the density of water. But sometimes it's useful to define the specific gravity with respect to a liquid that's different from water. For instance, if you were to let some wood of density 638 kilograms per meter cubed float in oil that has a density of 850 kilograms per meter cubed, you could still find the percent of the wood that's submerged underneath the oil. Just use the density of oil instead of the density of water in the specific gravity formula. If we do that, we'll find that the wood does float in this oil with 75% of the wood's volume submerged beneath the surface of the oil. [MUSIC PLAYING]
Law
- Specific deterrence, focussed on an individual
- Specific finding, intermediate verdict used by a jury in determining the final verdict
- Specific jurisdiction over an out-of-state party, specific to cases that have a substantial connection to the party's in-state activity
- Order of specific performance, court order to perform a specific act
Economics, finance, and accounting
- Asset specificity, the extent to which the investments made to support a particular transaction have a higher value to that transaction than they would have if they were redeployed for any other purpose
- Specific identification (inventories), summing purchase costs of all inventory items
- Specific rate duty, duty paid at a specific amount per unit
- Specific risk, risk that affects a very small number of assets
Psychology
- Domain specificity, theory that many aspects of cognition are supported by specialized, presumably evolutionarily specified, learning devices
- Specific developmental disorder, disorders in which development is delayed in one specific area or areas, and in which basically all other areas of development are not affected
- Specific learning disability
- Specific phobia, phobia of a specific thing or situation
- Specific social phobia, triggered only by specific social situations
Biology
- pertaining to a species
- Specific name (botany), species name of a plant
- Specific name (zoology), species name of an animal
- Specific appetite, drive to eat foods with specific flavors or other characteristics
- Specific granule, secretory vesicle in granulocytes
- Specific immunity, to a particular pathogen
- Specific Pathogen Free, of a laboratory animal guaranteed free of particular (i.e., specific and named) pathogens
Other fields
- A specific quantity generally means a physical quantity normalized "per unit" of something (often mass).
- SPECIFIC, The Sustainable Product Engineering Centre for Innovative Functional Industrial Coatings
- Specific creation, creationism as opposed to evolution
- Specific interval, shortest possible clockwise distance between pitch classes on the chromatic circle
- Specific integral, in calculus, eliminates the constant of integration
- Specific Physical Preparedness, being prepared for the movements in a specific physical activity (usually a sport)
See also
- Species (disambiguation)
- Specification (disambiguation)
- Specialty (disambiguation)
- Site-specific (disambiguation)
- Language for specific purposes, has been primarily used to refer to two areas within applied linguistics