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Class 5 Science Chapter 6 Test 2

Welcome to your Class 5 Science Chapter 6 Test 2

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1. 
Speed of sound in iron is _______ meter per second.

2. 
Buzzing of flies and mosquitoes is due to _______ of their wings.

3. 
Intensity of sound depends on its _______.

4. 
Speed of sound in air is _______ meter per second.

5. 
A vibrating object produces _______.

6. 
Which object does reflect maximum light?

7. 
The sounds which are pleasant to our ears are called _______.

8. 
Sound cannot pass through _______.

9. 
The intensity of sound _______with the increase of distance from its source.

10. 
The louder the sound, the _______ is its intensity.

11. 
Sound is a form of energy which produces _______ in matter particles.

12. 
Speed of sound in water is _______ meter per second.

13. 
Sound cannot pass through space due to

14. 
Sound travels _______ through solid objects than the air.

15. 
We hear sound when it enters our ears after passing through _______.

16. 
When water comes in the way of sound travelling through air:

17. 
Speed of sound is maximum in:.

18. 
Which of the following sounds is called noise?

19. 
The speed of sound in water is almost _______ times greater than air.

20. 
When an object vibrates, it forces the air particles around it to vibrate and thus _______ travel from one plane to another.

21. 
Sound can travel through:

22. 
The speed of sound in solid objects is almost _______ times greater than air.

23. 
How does light travel in air?

24. 
The sounds which are unpleasant to our ears are called _______.

25. 
The _______ who landed on the moon use wireless radio system for talking.