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NSO Mock Test – Class 9
NSO Mock Tests for Class 9 is designed for National Science Olympiad Preparation.
The NSO Class 9 online mock test paper is free for all students.
This paper has 50 questions.
Time allowed is 60 minutes.
In total there are 50 questions including all sections.
The NSO Mock tests for Class 9 given here will help the student get an accurate idea of the types of questions asked in the National Science Olympiad and also help prepare timing and accuracy.
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Question 1 of 50
1. QuestionCategory: Mental Ability
= k, then the value of k is ___________ ?
Question 2 of 50
2. QuestionCategory: Mental Ability
If f(x) = x4 – 2x3 + 3x2 – ax + b is a polynomial such that when it Is divided by (x – 1) and (x + 1), the remainders are respectively 5 and 19. Determine the remainder when f(x) is divided by (x – 2).
Question 3 of 50
3. QuestionCategory: Mental Ability
Five persons are standing in a queue. One of the two persons at the extreme is a professor and the other is a businessman. An advocate is standing to the right of a student. An author is to the left of the businessman. The student is between the professor and the advocate. Counting from the left, the author is at place ________ .
Question 4 of 50
4. QuestionCategory: Mental Ability
In the given figure, if AB || CD and EF || DQ, then ∠PDQ is _____________ .
Question 5 of 50
5. QuestionCategory: Mental Ability
In the following series. how many times the sum of two consecutive numbers results an even number?
1 2 3 4 6 3 4 2 5 9 3 6 7 4 1 2 3 6 7 6 5 4 3
Question 6 of 50
6. QuestionCategory: Mental Ability
Find the value of
Question 7 of 50
7. QuestionCategory: Mental Ability
In the given figure, x + y = _______ .
Question 8 of 50
8. QuestionCategory: Mental Ability
A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 13 cm, 14 cm and 15 cm and the parallelogram stands on the base 14 cm, then the height of
the parallelogram is __________ .
Question 9 of 50
9. QuestionCategory: Mental Ability
Select a figure from amongst the options which will continue the series established by Problem Figures.
Question 10 of 50
10. QuestionCategory: Mental Ability
A retailer increases the selling price by 25% due to which hls profit percentage Increases from 20% to 25%, The percentage increase in cost price is ________ .
Question 11 of 50
11. QuestionCategory: Mental Ability
If a + b + c = 6, the value of (2 – a)3 + (2 – b)3 + (2 – c)3 – 3(2 – a)(2 – b)(2 – c) is __________ .
Question 12 of 50
12. QuestionCategory: Mental Ability
Choose from the option which most closely resembles the water-image of the given combination.
B K 5 0 R P 6 2
Question 13 of 50
13. QuestionCategory: Mental Ability
In the adjoining figure, PQRS is square and MS = RN and A, P, Q and B lie on the same line. Also AP = MS and AP is the radius of the circle. Find the ratio of the area 0.1 two circles to the area of the square.
Question 14 of 50
14. QuestionCategory: Mental Ability
In ΔABC, E is the mid point of median AD such that BE produced meets AC at F, If AC = 10 cm, then AF = _______ .
Question 15 of 50
15. QuestionCategory: Mental Ability
A cosmetic company produces five different products. The sales of these five products (in lakh of packs) during 1995 and 2000 are shown in the given bar-graph.
What is the approximate ratio of the sales of nail enamels in 2000 to the sales to Talcum powders in 1995 ?
Question 16 of 50
16. QuestionCategory: Science
A force F1, acts on a particle to accelerate it from rest to a velocity v. The force F1, is then replaced by force F2, which decelerates It to rest. Which of the following statements is true?
Question 17 of 50
17. QuestionCategory: Science
A person ,sitting on a chair in a satellite feels weightless. It is because
Question 18 of 50
18. QuestionCategory: Science
The velocity-time graph of a body is given in figure.
The maximum acceleration in m/s2 is
Question 19 of 50
19. QuestionCategory: Science
Which quantity of a two particles system depend only on the separation between the two particles ?
Question 20 of 50
20. QuestionCategory: Science
An object of mass 10 kg is at a point A on a table. It is moved to a point B by a distance 5 m. If the line joining A and B is horizontal, then what is the work done on the object by the gravitational force ?
Question 21 of 50
21. QuestionCategory: Science
A plane lamina is freely suspended from point P.
The weight of the lamina is 2.0 N and the center gravity is at C. PC = 0.50 m ,PQ = 0.40 m and QC = 0.30 m. The lamina is displaced to the position shown.
What is the moment that will cause lamina to swing?
Question 22 of 50
22. QuestionCategory: Science
Read the given statements and mark the correct option.
Statement 1: A person sitting in the moving train is at rest with respect to another train moving in the opposite direction.
Statement 2: If the train covers equal intervals of time then it moves with uniform acceleration.
Question 23 of 50
23. QuestionCategory: Science
A sound wave passes from a medium A to a medium B. The velocity of sound B is greater than that In A. Assume that there is no absorption or reflection of the boundary. As the wave moves across the boundary, the _______ .
Question 24 of 50
24. QuestionCategory: Science
The energy required to change liquid water into water vapour at the same temperature is called latent heat of vaporisation. What does this energy do?
Question 25 of 50
25. QuestionCategory: Science
An artificial satellite is moving In a circular orbit of radius 42250 km. Find it’s speed if it takes 24 hours to revolve around the earth.
Question 26 of 50
26. QuestionCategory: Science
Read the given statements and mark the correct option.
Statement 1 : The sun seems to rise before it actually rises above horizon and it seems 10 set after some time It actually sets below horizon.
Statement 2 : A light ray bends towards the normal when it passes from a rarer 10 denser medium.
Question 27 of 50
27. QuestionCategory: Science
A man who is standing at a point X between two parallel walls as shown In the diagram, fires a starting pistol.
He hears the first echo after 0.6 s and another one after 0.8 s.
How long after firing the pistol will he hear the next echo?
Question 28 of 50
28. QuestionCategory: Science
In which conversion do H2O molecules lose speed?
Question 29 of 50
29. QuestionCategory: Science
Question 30 of 50
30. QuestionCategory: Science
Few properties of gases Gases X, Y AND Z are given
Gases X and Y dissolve in rain water and produce acid rain.
Gas X : An extremely suffocating and corrosive gas, released by burning coal and diesel.
Gas Y : Given off by petrol engines.
Gas Z : Produced by incomplete combustion of fuels.
Identify gases X, Y and Z respectively on the basis of the given properties.
Question 31 of 50
31. QuestionCategory: Science
Two particles X and Y have Ihe composition as shown in Ihe table.
The particles X and Y are
Particle Number of electrons Number of nuetrons Number of protons X 10 8 8 Y 18 18 17
Question 32 of 50
32. QuestionCategory: Science
Mark the correct sequence of subs lances obtained during fractional distillation of petroleum In ascending order of their boiling points.
Question 33 of 50
33. QuestionCategory: Science
Read the following statements and mark the correct answer
I. Artificially prepared synthetic fibre which resembles silk Is known as terylene.
II. Rayon Is not considered as a synthetic fibre as it is regenerated from cellulose.
III. PET bottles and jars are made up of polyesters.
Question 34 of 50
34. QuestionCategory: Science
A piece of charcoal is burnt and kept in a watch glass.
The burnIng charcoal is covered by an inverted gas Jar. It is observed that the charcoal stops burning after some time. Take out the jar and add some water to it. Test tile solution with red and blue litmus paper. What do you observe?
Question 35 of 50
35. QuestionCategory: Science
The relative atomic mass of naturally occurring chlorine is not a whole number. What is the reason for this?
Question 36 of 50
36. QuestionCategory: Science
Question 37 of 50
37. QuestionCategory: Science
The given diagram shows a boat made from iron.
Some magnesium blocks are attached 10 the iron below the water line to prevent rusting. Why?
Question 38 of 50
38. QuestionCategory: Science
Plastids differ from mitochondria on the basis of which of the following features?
Question 39 of 50
39. QuestionCategory: Science
Given below are four statements regarding external fertilization.
(i) The male and female gametes are formed and released simultaneously.
(ii) Only a Few gametes are released into the medium.
(iii) Water is the medium of fertilization in majority of organisms exhibiting external fertilization.
(iv) Offsprings developed from external fertilization have better chances of survival than those developed from Internal fertilization.
Which of the given statements are correct?
Question 40 of 50
40. QuestionCategory: Science
Question 41 of 50
41. QuestionCategory: Science
Select the incorrect statement regarding AIDS.
Question 42 of 50
42. QuestionCategory: Science
Which of the following options Is correct about india alligator and Indian giant squirrel?
Question 43 of 50
43. QuestionCategory: Science
Inorganic fertilizers are applied each year to fields bordering a lake. The fertilizers run off into the lake and cause the following six changes which together cause high mortality of fishes.
(i) Aerobic bacteria leed on dead plants.
(ii) Algae reproduce faster.
(Iii) Light cannot penetrate the water.
(iv) Oxygen level tails.
(v) Water becomes green.
(vi) Plants under water die. Which of the following shows the correct order ot the changes taking place?
Question 44 of 50
44. QuestionCategory: Science
Question 45 of 50
45. QuestionCategory: Science
Leech, Nereis, Scolopendra, prawn and scorpion all have segmented body organization. but still Ihey cannot be classified in one group. Which of the following Is the correct basis for the classification of these organisms into different groups?
Question 46 of 50
46. QuestionCategory: Science
Refer the given figure and read the following statements.
(i) The part labelled P modifies into pseudopodia in WBC and helps In movement.
(ii) The part labelled Q is absent in mature red blood cells in humans.
(iii) The parts labelled Rand U help in production of energy.
(iV) The part labelled S enlarges during maturity.
(v) The part labelled T Is spindle shaped with pointed ends in muscle cells.
Which of the given statements are incorrect regarding this?
Question 47 of 50
47. QuestionCategory: Science
Question 48 of 50
48. QuestionCategory: Science
Given below are some characteristics of vessels and tracheids.
(i) Multicellular will1 wide lumen
(ii) Dead cells
(iii) Cell walls are lignified
(iv) Discontinuous lumen due to presence of end walls
(v) Long, cylindrical lube-like Structure
(vi) Elongated cells with tapering ends
Categorize the above characteristics with vessels (X) and tracheids (Y) and select the correct option.
Question 49 of 50
49. QuestionCategory: Science
Which of the following is incorrect for the given figure?
Question 50 of 50
50. QuestionCategory: Science
An ecologist studied the effects of sewage effluent on the levels of oxygen concentration, bacterial population and algal growth In a fresh water stream.
The given graph is plotted based on his findings.
Select the correct statement regarding the given graph.