#### Measurement Model Question Paper

7th Standard EM

Reg.No. :
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Science

Time : 01:30:00 Hrs
Total Marks : 50
5 x 1 = 5
1. Which of the following is correct?

(a)

1L = 1cc

(b)

1L = 10 cc

(c)

1L = 100 cc

(d)

1L = 1000 cc

2. Light year is the unit o

(a)

Distance

(b)

time

(c)

density

(d)

both length and time

3. The unit of volume is ____________

(a)

m3

(b)

m2

(c)

cm3

(d)

km

4. The SI unit of speed is __________

(a)

m/s2

(b)

m/s

(c)

km/h

(d)

m2/s

5. __________ is a derived quantity

(a)

length

(b)

mass

(c)

time

(d)

area

6. 5 x 1 = 5
7. Volume of irregularly shaped objects are measured using the law of ________

()

Archimedes

8. Density of mercury is _______

()

13,600 kg/m3

9. The area of a leaf can be measured using a ________

()

graph sheet

10. The materials with higher density are called __________

()

denser

11. The SI unit of density is _______________

()

kg/m3

12. 5 x 1 = 5
13. Area

14. (1)

amount of a substance

15. Density

16. (2)

$\frac12\times b \times h$

17. Mass

18. (3)

kelvin (K)

19. Temperature

20. (4)

kg / m3

21. Triangle

22. (5)

m2

1 x 5 = 5
23. A liquid having a mass of 250 g fills a space of 1000 cc. Find the density of the liquid.

24. 7 x 2 = 14
25. Name some of the derived quantities.

26. Write down the formula used to find the volume of a cylinder.

27. Name the liquid in which an iron ball sinks.

28. What is the density of gold?

29. Find the volume of (Take $\pi$ = 22/7)
i. a cube whose side is 3 cm.
ii. a cylinder whose radius is 3 m and height is 7 m.

30. Write the SI unit of speed

31. What is the distance between the earth and proxima centauri star?

32. 2 x 3 = 6
33. What are derived quantities?

34. What is one light year?

35. 2 x 5 = 10
36. Describe the graphical method to find the area of an irregularly shaped plane figure.

37. How will you find the area of irregular objects?