9th Science Quiz Challenge

1. In all the three states of water, (i.e. ice, liquid and vapour) chemical composition of water

2. Sound travels through which medium?

3. Mexican wave in a stadium is an example of

4. Suppose a boy is moving with a uniform velocity of 10 m/s on a merry-go-round ride. Which of the following is true of the given scenario?

5. Which of the following statements is incorrect about the state of matter?

6. Which of the following phenomena would increase on rising temperature?

7. The atomic symbol of Iron is —————.

8. When heat is constantly supplied by a burner to boiling water, then the temperature of the water during vaporisation:

9. The atomic symbol of silver is —————

10. The phenomenon where a sound produced is heard again due to reflection is called ———–

11. The physical quantity that has both magnitude and direction is known as

12. Which of the following is true of a free-falling body?

13. Which of the following is not a property of gas?

14. What does the slope of the distance-time graph give?

15. When a body vibrates, it compresses the air surrounding and forms a high-density area known as —————-.

16. A box contains some identical red colour balls labelled as A each weighing 2 g. Another box contains identical blue colored balls, labelled as B, each weighing 5 g. In the combinations AB, AB2, A2B and A2B3 which is applicable?

17. Which of the following conditions is most favourable for converting gas into liquid?

18. Velocity is defined as ----- per time.

19. The number of compressions or rarefactions per unit time gives ———–

20. When the vibrating object moves backwards, it creates a region of low pressure called —————-