Basic Quantities

Post on 17-Nov-2014

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Transcript of Basic Quantities

Derived Quantities

The purpose :1. Able to mention the derived

quantities2. Able to give the example of

derived quantities3. Able to determine the volume of

solid

Derived quantities are quantities derived from basic quantities

Several examples of derived quantities

Area Square meters m2

Volume Cubic meters m3

Velocity meters per second m/s

Density Kilograms per cubic meters Kg/m3

Area is derived quantity which is obtained by multiplying two length quantities

Volume , similar to area, volume is also derived of basic quantities. That is the productOf three length quantities

Solids which have uniform shape such asCube, volume can be calculated by using Certain formula.

Meanwhile solids which have non uniformShape such as stone, its volume can be calculated directly.

How the methods

a.Fill the measuring glass with wather

It is called initial volume

b. Then, put a stone that will be measured into the measuring glass

The volume of water and the stone are called the final volume

So, the volume of stone = final volume – initial volume

CONCLUSION

• Derived quantities are quantities derived from basic quantities.

• Example : area (m2), volume (m3), velocity (m/s), density(kg/m3),etc

• The vollume of thing = length x length x length, and can be measured using a measuring glass