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JAWAHAR NAVODAYA VIDYLAYA ,WS                                    
                                                                                    PWT -I (2020-21)
CLASS   -  IX          SUB. -  SCIENCE                                                                             MARKS   -50         TIME-      40MIN
Class *
Roll No. *
Name of student *
1. A form of matter has no fixed shape but it has a fixed volume. An example of this form of matter is *
1 point
2.When heat is constantly supplied by a burner to boiling water, then the temperature of water during vaporisation : *
1 point
3. On converting 308 K and 391 K to Celsius scale, the correct sequence of temperatures will be:(a) *
2 points
4. Sublimate substaces are *
1 point
5.Which of the following phenomena always results in the cooling effect? *
1 point
6.Which of the following statement is not true regarding the characteristic of matter? *
1 point
7.The process of the change of the liquid state into vapour state is known as - *
1 point
8. which of the following are matter -chair, love, smell, hate, *
2 points
9.match rows with column
7 points
temperature
Solid
diffusion
glass thermometer
evaporation
conversion of solid into gas or vice versa
98.6 ⁰F
particles are closely packed
rate of evaporation depends on
Mercury is generally used in
intermixing of particle of mattersis called
when water is kept in earthen pot become colder during summer due to
sublimation
normal body temperature
10.A farmer moves along the boundary of  square field of side 10 m in 40 s . What will be the magnitude of displacement of of the farmer at the end of 2 minute 20 seconds from his initial position *
2 points
11.SI unit of acceleration
2 points
Clear selection
12.What is the use of odometer in vehicles *
2 points
13.The area under velocity time graph indicates *
2 points
14. Which is not correct form equation of motion for uniformly accelerated body *
2 points
15. A boat starting from rest on a lake accelerates in a straight line at a constant rate of 3 m/s²  for 8 seconds . How far does the boat travel during this  time *
2 points
16. The brakes applied to a car produce an acceleration of 6 m/s² in the opposite direction to the motion.If the car takes 2 s to stop after the application of brakes, calculate Intial velocity and  the distance it travels during this time *
2 points
17.  Formula for speed
2 points
(v-u)/t
Distance/time
Displacement /time
velocity
speed
Accelaration
velocity
Slope of position time graph
Clear selection
18. Which physical constant in uniform motion *
1 point
19. Cell was discovered by *
2 points
20. Cell wall is made up of *
2 points
21. HIV Virus affects which part of body? *
2 points
22. First vaccine was discovered by whome? *
2 points
23. First antibiotic is produced from *
2 points
24. Chromosomes are made up of ______. *
2 points
25. Which of the following disease will have a long term effect on the body? *
2 points
26. Which of the following is an intrinsic cause of a disease? Pathogens Environmental pollutants Hormonal disorders Inadequate diet *
2 points
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