9th Science Quiz Challenge

1. Mexican wave in a stadium is an example of

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

3. 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?

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

5. What does the slope of the velocity-time graph give?

6. 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?

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

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

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

10. The distance which compression or a rarefaction travels per unit of time gives————-

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

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

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

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

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

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

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

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

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

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