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21 Cards in this Set
- Front
- Back
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What is the symbol used for density ما هو الرمز المستخدم للكثافة |
The symbol used for density is P { rho } الرمز المستخدم للكثافة هو P {rho} |
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What is unit of density ما هي وحدة الكثافة |
The unit of density is kg/m3 وحدة الكثافة هي كجم / م 3 |
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Define density
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Density is defind as its mass per unit volume |
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define relative density تحديد الكثافة النسبية |
Relative density of substance is the ratio of the mass of any volume of the mass of an equal volume of water الكثافة النسبية للمادة هي نسبة الكتلة لأي حجم من الكتلة لحجم متساو من الماء |
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to measure the relative density of solid by using Archimedes principle لقياس الكثافة النسبية للمادة الصلبة باستخدام مبدأ أرخميدس |
Mass of any volume of the sabstance ÷ weight of any volume of the sabstance Or Mass of an equal volume of water ÷ weight of an equal volume of water Or Weight of a sample of the substance ÷ the apparent loss in weight of the sample in water |
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Relative density of a liguid by wing Archimedes principle الكثافة النسبية للسائل من جانب مبدأ أرخميدس |
Weight of brass in air = mass1g Weight of brass in water = m2g Weight of brass = ( m1 - m2 )g |
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R.D of brass = ? |
Weight in air ÷ weight in water = m1g ÷ ( m1 - m2 )g = m1 ÷ m1 - m2 |
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Aluminium |
2700 |
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Brass |
8500 |
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Copper |
8900 |
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Glass |
2600 |
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Gold |
19300 |
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Lee |
920 |
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Lead |
11300 |
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Mercury |
13600 |
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Methlated spirit |
800 |
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Platinum |
21500 |
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Sand |
2600 |
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Steel |
7800 |
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White spirit |
850 |
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Zinc |
7100 |
