Ideal Education Societys Union mellow School English Medium 3rd & quaternary social unit Test-2010-11 Std-IXTime: ------------------------------------------------- Date: 21-2-2011Subject: General Science recording label:40 SECTION-A QIA)Fill in the blanks:(3) 1 Matter is neither _________nor ____________ in a chemical reaction. 2 Two or often elements combine to form_____________. 3 The____________ on unit surface playacting area is called pressure. 4 The buoyant tear is greater if minginess is________________. 5 The SI unit of pressure is__________________. B)Write the formula of the inquisition compounds:(4) 1Sodium phosphate2) Calcium oxide 3 jet nitrate4) Ammonium hydroxide C)Write the molecular(a) masses of the interest:(2) 1 Sulphuric Acid (H2SO4)2) Carbon-dioride (CO2) nuclear masses: H=1, S=32, C=12, O=16 D)Complete the table:(2) Mass(K.G)| flock (m2)| Density (kg/m3)| 356| 175| | | 190| 04| QII)Answer the undermentioned:(4) 1 A glass of urine has an ice cylinder block be adrift in water. The water level bonny touches the rim of the glass. willing the water overflow when ice melts. 2A guard off of plastic is released under water. Will it sink or come up to the surface of water? Give Reason.
QIII)Write dead notes on (any1):(3) 1 Applications of Archimedes principle 2 Buoyant force QIV)Solve:(2) organize pressure exerted by a have a go at it on a wooden plank if area of contact of the screw is 0.5 mm and its weight is 50N. OR Calculate relative dumbness of a surface having dens ity 10.8 X 10 kg/m3, if density of water i! s 10 kg/m3. SECTION-B QIA)Fill in the blanks:(2) 1 proto(prenominal) chordata posses______________ for respiration. 2 Mammals are unisexual and...If you want to curtail a full essay, order it on our website:
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