Asked in Physics, Science Experiments
Why are derived units more complex than fundamental units and why is it important to know whether a unit is derived or fundamental?
Derived units are simply more complex because they are made up of several (that is, usually, by more than one) base unit. It is just the way they are defined; for example, in the SI, distance and time are base units, while speed is a derived unit (distance / time). You can just as well invent a system of units where - for example - time and speed are base units; in this case, distance would be a derived unit. ...
Asked in Physics
Mention differences between fundamental and derived units?
there are seven fundamental units.they are:-length,temperature,luminous intensity,amount of substance,nd 2 more. derived units are the units that are derived from fundamental units.eg:-velocity(derived from length and time),etc. ...
Asked in Physics
Why are there 7 fundamental physical quantities and not more?
If you look at the definitions of the SI units, and especially the derived units, you'll see that all the derived units are derived from other units. It might actually be possible to have even less base units, but that would make the system of units unnecessarily confusing. ...
Asked in Units of Measure, Physics
What are the fundamental and derived SI units?
There are several SI base units, and many more derived units, which are combinations of other units. For example, meter and second are base units, meter/second (for speed or velocity) is a derived unit. For more details, see these links: http://en.wikipedia.org/wiki/SI_base_unit http://en.wikipedia.org/wiki/SI_derived_unit ...
What are fundamental units?
Fundamental units Fundamental units, or base units, are those that cannot be decomposed into more basic units. (Note that "basic" does not mean "smaller.") Derived units, on the other hand, are those that are defined in terms of other units, which may be base units or other derived units. In the SI system, the base unit of length is the meter, the base unit of mass is the kilogram, and the base unit of time is the second. The base unit of electrical current...
Asked in Units of Measure, Physics, Earth Sciences
What is difference of derived quantity and fundamental quantity?
Fundamental quantities are such things as the kilogram ( a physical mass of metal), the Metre (now defined by reference to atomic oscillations). [In detail, metre, second, kg, mole, Kelvin, candela.] Derived quantities are such things as the force due to gravity, acceleration, and more obvious ones such as ml, cm, and so on. Answer The SI does not define 'fundamental quantity', instead it uses the term 'Base Unit'. All other units are 'Derived Units', so-called because they are each derived from combinations of Base Units. ...
Why current a fundamental quantity though it is flow of charge per unit time?
Ampere = Coloumb / second is the same as saying that Coloumb = Ampere x second. Any of the two electrical units can be derived from the other one. Ampere is NOT a "fundamental quantity"; it is an SI base unit. The base units are not necessarily those that are somehow considered more "fundamental" than others; instead, the base units are those that can be measured with a great accuracy. In the case of current vs. charge, it seems that measuring a...
Asked in Units of Measure
What is weight measured in units called?
Weight is force. Any unit of force is an appropriate unit with which to describe weight. Some of the more popular ones include . . . -- Newton -- Pound -- Ounce -- Ton -- Stone -- Dyne Note: During your survey, two answers that will score high in your results are "kilogram" and "gram". Those are not units of force, and you must discard them. I strongly disagree with the last answer shown here. There are 2types of 'Unit'. There are 'Fundamental ' units, and there are 'Derived' units ....
Asked in Physics
Why is pressure a derived quantity?
In the SI system, because that's the way it is defined. Pressure is defined as force divided by area. SI units are newton / square meter, this derived unit is called the pascal. This is the way it is defined in the SI, and in some other systems of units. You could just as well create a system of units in which pressure is a base unit, and force is derived (as the product of pressure x area). The decision, which...
Asked in Math and Arithmetic, Units of Measure
How many units are in the SI system and can i see them?
The SI has 7 base units: http://en.wikipedia.org/wiki/SI_base_unit Also, the SI has tens of derived units - perhaps hundreds of them, since you can combine the base units in many ways. Those units are ultimately derived from the 7 base units. For example, units for area, volume, speed, force, energy, pressure, electric charge, voltage, and many more, are derived from some of the base units. http://en.wikipedia.org/wiki/SI_derived_unit ...
Asked in Physics
Differentiate between a derived quantity and fundamental quantity?
A fundamental quantity is a measurement of one of the following characteristics: mass, length luminous intensity time electric current temperature amount of a substance. The measurement of other characteristics may be calculated on the bases of one or more of these: for example, volume = length^3, density = mass/volume and so on. It is possible to replace some of these fundamental units by others which are "natural" units. In the above scheme, speed = distance/time, an alternative is distance = speed*time. It is, therefore, possible to use the speed of...
Asked in Carbohydrates and Low-Carb Diets
What is complex sugar?
Complex sugars are also known as complex carbohydrates and there are three or more units of sugar in them. Complex sugars include assimilable polysaccharides, including pasta and potatoes, and non-assimilable polysaccharides that include green vegetables. ...
Asked in Physics, Electricity and Magnetism
Why is current a fundamental quantity and not charge?
The SI does not define 'fundamental quantity', instead it uses the term 'Base Unit'. All other units are 'Derived Units', so-called because they are each derived from combinations of Base Units. The ampere is a Base Unit, and is defined in terms of the force between two, parallel, current carrying conductors. This definition is important, because it makes use of one of the three effects of an electric current (electromagnetism) to enable it to be measured with great accuracy. Furthermore, it is the...
Asked in Chemistry, Earth Sciences
Why is area called a derived quantity?
This is the combination of two or more base unit. Because derived quantities are obtained from multiples and combination of fundamental quantities thy include area,speed,volume acceleration density and so on.............. ...
What is a metric base unit?
Units in the metric, or SI, system are dived into two types; base units and derived units. Base units are defined in terms of a physical constant, and derived units are produced by combinations of the base units. The seven base units are; Length, metres. Mass, kilogram. Time, second. Temperature, kelvin. Electric current, ampere. Amount of substance, mole. Luminous intensity, candela. Read more: http://wiki.answers.com/Q/What_are_the_basic_quantities_of_metric_system_and_their_base_units#ixzz1yGmu5H6o ...
Asked in Landlord-Tenant Issues
Can a landlord legally refuse to remedy an infestation problem in an apartment complex?
It normally depends on how many units are in the complex. If the "complex" is actually a duplex, triplex, or quadplex, then no: it's not an apartment complex and generally the landlord is not responsible for pest control. If there are more than four units then it's an apartment complex, and is subject to more rules: the landlord is normally responsible for the pest control, inter alia. Code Enforcement can help you enforce the laws your by which your landlord must abide. ...
Asked in Science, Units of Measure, Physics
Velocity may be expressed in which type of units?
Usually, the units for speed and velocity are derived as units of length, divided by units of time. For example, the SI unit for speed - the unit most commonly used by scientists - is meters/second, though units of kilometers per hour are more common among non-scientists. Any unit of length can be divided by any unit of time. There are also units that are not explicitly derived from units of length and time - for example knots, and fractions of...
Asked in Science, Math and Arithmetic, Physics
What are examples of derived quantities?
I think your question is about units. I will answer that question. There are two kinds of units: "base" units and "derived" units. Base units are defined by unique values, often related to natural quantities. Examples include the second, defined in terms of the frequency of radiation from the caesium-113 atom at a particular energy state; the meter, defined as the distance light travels in a vacuum in 1/299,792,458th of a second; and the kilogram, once defined as the mass of one liter...
Why do you say that the joule is a derived unit of work?
In the Internation System of Units there are only seven base units of measurement and the joule is not one of them. It isn't needed as a unit because it can be derived from the base units. The joule is really just a 'convenience' because it's much easier to say or write than its definition which is kg.m2.sec-2. For more about this you might be interested in reading the wikipedia page about the Internation System of Units. ...
Why is a cubic centimeter an example of a derived units?
a derived unit is a unit that is not a base SI unit but made up of two or more. cm^3 is made up of three cm, which is a base SI unit ...
How is 10 related to metric?
Metric is measured in units of 10. All calculations of metrics have to do with some combination of 10. In the old English measurements, the units related to each other in more complex ways, and had no one number to standardize the relationship. Metrics does away with learning complex units by always using some measure of 10. ...
Asked in Math and Arithmetic, Physics
Why are area an density called derived quantities?
In the SI, these units are derived from other units. For example, an area is a length squared. Of course, it is possible to proceed the other way round, for example to define an area as the base unit, in which case a length would be the square root of an area. That looks more complicated, but it's possible. Thus, whether a unit for a specific type of measurement is a base unit or a derived unit really depends on the...