Physics 9th Class English Medium Online Test With Answers

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Physics 9th Class English Medium Online Test

Sr. # Questions Answers Choice
1 Which will exert greater pressure. 3 g needle of tip are 1 mm2 4000 kg elephatn of total feed area 0.5 m2 A girl of mass 40 kg wearing high heel shoes of cross sctional area 0.5 cm2 A loaded ship fo mass 2.2 x10 <sup>7</sup>kg having area 600 mm2
2 SI unti of pressure is. Newton Pascal Infinite Zero
3 Materials which does not regain its original hape after remvoal of the load producing deformationare termed as. Rigid materials Hook's materials Plastic materials Elastic materials
4 A mass of 2 kg is hung by spring which displaces it through 5 cm. the spring constnat. 4000 N/m 400 N/m 40 N/m 4 N/m
5 Hook's law hodl good up to Plastic Elastic Yield limit Proportinal unit
6 The most elastic material of the following is. Rubber Steel Wood Glass
7 What is the force exerted by the atmosphere on a rectangular block surface of length 50 cm and breadth 40 cm? The atmospheric pressure is 100 k Pa. 20 kN 200 kN 100 kN 500 kN
8 When a spring in compressed, what form of energy does it possess. Heat Internal Potential Kinetic
9 The principle of ahydrulic press is based on. Pascal's law Hooke's Law Principle of conseration of energy Principle of conservatin of momentum
10 Pressure applied to an enclosed fluid is. Increases and applied to every part of the fluid Transmitted unchanged to every portion of the fluid and walls of containing vessel Increased and transmitted to the walls of container Diminshed and transmitted to walls of cntainer
11 The pressrue at any point in a liquid is proportional to. Density of liquid Depth of the point below the surface of the liquid Acceleration due to gravity All of the above
12 Four wires of the same material are stretch by the same load. Their dimensions are give below. Which of them will elongate most. Length 4 m, diameter 0.5 mm Length 1 m, diameter 1 mm Length 2 m, diameter 2 mm Legnth 3 m, diameter 3 mm
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