9th Science Quiz Challenge

1. Sound travels through which medium?

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

3. Mexican wave in a stadium is an example of

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

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

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

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

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

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

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

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

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

13. 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?

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

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

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

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

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

19. 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?

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