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Class 9 Olympiad Science Mock Test 8
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Class 9 Olympiad Science Mock Test 8
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25 Questions

1. Which of the following have a regular, repeated molecular pattern and large number of free surfaces in three dimensional space?
2. Which of the following metals is NOT a solid at room temperature?
3. A body travels 200 cm in the first two seconds and 220 cm in the next four seconds with constant acceleration. Find the velocity at the end of the seventh second from the start.
4. Which of these protect the hive, collect nectar and pollen and look after the eggs?
5. Calculate the mass of one molecule of H2O.
6. A ball dropped from a height 'h' reaches the ground in time 'T'. What is its height from the ground at time T/2?
7. Which of the following statements is NOT true?
8. Which of the following is a physical change?
9. P does 500 J work in 10 minutes and Q does the same work in 20 minutes. What is their power?
10. A sound wave has a frequency of 1000 Hz and a wavelength of 34 cm. How long will it take to travel 1 km?
11. What is the function of the cilia in paramecium?
12. The primary cause for the tidal waves on the sea is due to the gravitational effect of the
13. Find the ratio of the distances travelled by a body falling freely from rest in the first, second and third seconds respectively.
14. To which of the following phylas does the animal given below belongs to?
15. The mass of a body is M on the earth's surface. What is the mass of the same body on the moon's surface?
16. A train covers equal displacements in equal intervals of time. Which of the following does it NOT exhibit?
17. How many protons, neutrons and electrons are there in an atom of the isotope of helium 32He?
18. A long rope is stretched out on the floor. The diagram shows the rope at a particular moment in time by a student moving one end of the rope up and down at a steady rate.

Which points are one wavelength apart?
19. A force produces an acceleration of 5.0 cm s-2 when it acts on a body of mass 20 g. Find the force acting on the body.
20. The acceleration (a) of a particle is plotted on the Y-axis while the time (t) elapsed is plotted along the X - axis. What does the a – t graph give?
21. Which of the following is a result of natural selection?
22. Which of the following is a pair of isobars?
23. Which of the following is a reptile?
24. A bullet of mass 60 g moving with a velocity of 500 m s–1 is brought to rest in 0.01 s. Find the impulse and the average force of the blow.
25. Which cropping method involves growing two or more crops in definite row pattern?

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