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#### Measurements Model Question Paper

8th Standard EM

Reg.No. :
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Science

Time : 01:30:00 Hrs
Total Marks : 50
4 x 1 = 4
1. Which one the following system of units is the British System of unit?

(a)

CGS

(b)

MKS

(c)

FPS

(d)

SI

2. SI unit of temperature is

(a)

celsius

(b)

fahrenheit

(c)

kelvin

(d)

ampere

3. SI unit stands for

(a)

International system of units

(b)

Integrated System of units

(c)

International symbol of units

(d)

Integrated symbol of units

4. Quantities other than base quantities are called as

(a)

supplementary quantities

(b)

derived quantities

(c)

professional quantities

(d)

energy quantities

5. 4 x 1 = 4
6. The solid angle is measured in _______.

()

7. _______ is used to measure electric current.

()

Ammeter

8. The intersection of two straight lines gives us_______.

()

Plane angle

9. The melting point of pure ice is ______

()

OOC

10. 5 x 1 = 5
11. SI units are metric system of units.

(a) True
(b) False
12. One coulomb of charge fl owing per minute is called ‘ampere’.

(a) True
(b) False
13. Th e number 4.582 can be rounded off as 4.58.

(a) True
(b) False
14. Heat given to a substance will increase its temperature

(a) True
(b) False
15. Precision is the process of finding the solution by means of estimation

(a) True
(b) False
16. 5 x 1 = 5
17. Temperature

18. (1)

Angle formed by the intersection of three or more planes

19. Solid Angle

20. (2)

Measure of hotness or coldness

21. Precision

22. (3)

-243.2°C

23. 30K

24. (4)

353K

25. 80°C

26. (5)

Closeness to two or more measurements

5 x 2 = 10
27. What is the unit of mass in FPS system?

28. What is the ‘Lower Fixed Point’ of the Fahrenheit scale?

29. What is the value of Avogadro’s number?

30. How many hours are there in a minute?

31. Name the metric systems of units.

32. 4 x 3 = 12
33. What is measurement?

34. Define - ampere.

35. Define - mole.

36. What are errors?

37. 2 x 5 = 10
38. List out the base quantities with their units.

39. Write a note on Greenwich Mean time (GMT) and Indian Standard Time (IST)