Physics

# Is speed a fundamental or derived quantity?

###### Wiki User

Velocity is a derived quantity. Speed is velocity without direction. Velocity is derived from distance and time.

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## Related Questions

### What is derived quantity?

It is the quantity that is derived from fundamental quantities

### Definition for fundamental quantities and derived quantities?

the differentiate between fundamental quantity and derived quantity?

### What are derived quantities what are the fundamental quantities?

the derive quantity is the quantity that is derive from fundamental quantities @ the fundamental quantity is one of the four quantities that are the basis of systems of measurement.

### Is volume a derived quantity?

yes it is,it is derived by cubing the fundamental unit of length

### What is the Example of fundamental and derive quantities?

A fundamental quantity is something like length, mass or time. A derived quantity is something you get from combining fundamental measurements, like speed (comes from distance and time) or density (comes from mass and volume). The terms 'fundamental quantities' and 'derived quantaties' most likely refer to the units used, so in standard units, the fundamental quantities are the meter, kilogram, second and Ampere. There are heaps of derived quantities.

### What is a quantity whose value depends on that of another quantity or quantities?

these type of quantities are called derived quantities. Their value depends on some fundamental quantities or some other derived quantities. eg. force is a derived quantity whose value depends on mass(fundamental) and acceleration(derived).

### What is the difference between fundamental quantities and derived quantities?

The quantity which has only direction is called fundamental quantity.Example-Direct current.The quantity which has both magnitude and direction is called derived quantity.Example-Altranating current.

### Differentiate between a derived quantity and fundamental quantity?

A "derived" quantity is derived from some other quantity. Since you have to start somewhere, SOME quantities must be defined first; these are the fundamental quantities, and others are derived from them. It is a more or less arbitrary decision which quantities are DEFINED as fundamental; as an example, take the standard formula for speed:distance = speed x time If you define any two of these quantities, you can then derive the third one with this formula. It is an arbitrary decision which of these quantities are defined as fundamental - for example, some of them may be chosen as fundamental because they are easier to measure. Here is another example: Using the fact that the area of a square is the square of the length of the side, you can define length as a fundamental quantity, and then define area as length squared; but you can just as well define area as a fundamental quantity, and then define length as the square root of an area. Since it is generally easier to measure a length, the first route is taken in many measurement systems, including the SI.

### Is velocity a derived quantity?

Of course, velocity is a derived quantity. By definition, velocity is time rate of change of velocity. ie, Velocity = Displacement (s) / Time (t), where S and t are fundamental quantities. Hence velocity is a derived quantity.

### 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..............

### Differentiate basic quantity from derived quantity?

I think basic quantity or fundamental quantity are quantities that can be measured using measuring instruments. Ex. Length is measured by a ruler. Time is measured by a timewatch. Mass is measured by platform balance etc. Derived quantity are quantities that is a combination of both fundamental and derived. It uses formulas. Ex Area is square meter. Volume is cubic meter. Force is F= ma etc.

### Is kilogram a derived unit?

No kilogram is the SI unit for fundamental physical quantity namely mass.

### What are difference of fundamental and derived quantity?

Fundamental quantities r those which r independent of other quantities and r scaler and on the other hand derived quantities r those which depends on fundamental quantities!! For example metre sqaure!

### Is the area fundamental quantity?

no it is not considered as a fundamental quantity

### Example of fundamental and derived quantities?

A fundamental quantity/unit would be a kg or meter or second etc. If you accelerate a 1 kg mass at 1 meter per second2 you would use a force of 1 Newton (N). 1N is derived and not fundamental.

### What are the fundamental and derived quantities?

Fundamental quantities are quantities that can be measured such as mass, length and temperature. Derived quantities are quantities that has to be calculated such as pressure, volume and work done.AnswerThe 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.

### What is temperature as a derived quantity in terms of length mass and time?

Temperature is a fundamental quantity itself, like length, mass and time. You cannot relate it in this way.

### 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.AnswerThe 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.

### How are fundamental units and derived units related?

According to second law of Newton's motion, we can relate fundamental and derived units; i.e F=ma where, 'm' is mass of body which is fundamental quantity and its unit expressed in Kg. and 'F' is the force implied on body produced acceleration which is directly proportonal to one another, whereas; force is derived quantity and its unit expressed in Kg-m/sec/sec or N. Hence in this way we can relate these two.

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