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Class 9 Olympiad Science Mock Test 1
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Class 9 Olympiad Science Mock Test 1
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25 Questions

1. A box of mass 1 kg is pulled through 1 m along a level floor by a horizontal force of 8 N. The box is then raised vertically on to a bench 2 m high. What is the total workdone on the box? (Take g = 10 m/s2)
2. Arrange the following media in ascending order of the speed of sound in them.
(i) Water (ii) Steel (iii) Nitrogen
3. Which of the following statements is NOT true for a particle moving in a circle with a constant angular speed?
4. A body weighs 12 N on the surface of the moon. What is its weight on the surface of the earth?
5. For a moving particle, what does decrease in displacement with time mean?
6. A pump can lift water of 150 kg in 15 s, to store it in an overhead tank at a height of 15 m. Find the power of the pump. (g = 9.8 m s-2)
7. If suddenly the gravitational force of attraction between the earth and a satellite revolving around it becomes zero, then the satellite will
8. There are 8 chromosomes in the female gamete of plant P. How many chromosomes are there in each leaf cell of plant P?
9. What type of muscles are found in stomach?
10. A healthy person is one who is free from
11. A stone is thrown vertically up. What happens to its P.E. during its motion of upward journey?
12. A machine gun of mass 12 kg fires 25 g bullets at the rate of 4 bullets per second with a velocity of 500 m s–1. What force must be applied to the gun to hold it in position?
13. The weight of a rock on the moon is 200.6 N. What is its mass on the earth? (Take g of earth = 9.8 m s–2, g of moon = 1.7 m s–2
14. What is the smallest constituent of a matter that retains its chemical identity?
15. Which element has neither a definite shape nor a definite volume at 40 °C?
16. Non-reacting gases have a tendency to mix with each other. This phenomenon is known as
17. Which of the following is a true solution?
18. Which of the following forms a colloidal solution in water?
19. Ranveer pulled a table cloth from a table without dislodging the dishes. This is due to
20. Which of the following statements is not correct about a planet rotating around the Sun in an elliptical orbit?
21. When a bus starts suddenly, the passengers are pushed back. This is an example of which of the following?
22. John finds that, as he blows air into a balloon, it becomes bigger. What inference can John make?
23. What is the function of the contractile vacuole?
24. X is a dicot flowering plant and Y is an algae. Identify X and Y.
25. Identify the tissue that transports water to the plant body.

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