#### Measurement and Measuring Instruments One Mark Questions

9th Standard

Reg.No. :
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Science

Time : 01:00:00 Hrs
Total Marks : 30
10 x 1 = 10
1. Choose the correct one

(a)

mm< cm < m < km

(b)

mm > cm > m > km

(c)

km < m < cm < mm

(d)

mm > m> cm> km

2. Rulers, measuring tapes and metre scales are used to measure

(a)

Mass

(b)

Weight

(c)

Time

(d)

Length

3. 1 metric ton is equal to

(a)

100 quintals

(b)

10 quintals

(c)

1/10 quintals

(d)

1/100 quintals

4. Distance between Chennai and Kanyakumari can be found in

(a)

Kilometres

(b)

Metres

(c)

Centimetres

(d)

Millimetres

5. Which among the following is not a device to measure mass

(a)

Spring balance

(b)

Beam balance

(c)

Physical balance

(d)

Digital balance

6. ___________is the derived quantity.

(a)

Length

(b)

Volume

(c)

Mass

(d)

Time

7. _________is not the unit of length.

(a)

Muzham

(b)

Furlong

(c)

Mile

(d)

Hour

8. Unit of acceleration is________.

(a)

ms-2

(b)

ms-1

(c)

$\frac{m}{s}$

(d)

$\frac{s}{m}$

9. The diameters of spherical objects are measured with a_________scale.

(a)

pitch

(b)

meter

(c)

head

(d)

vernier

10. _________is the unit distance used to measure astronomical objects outside the solar system.

(a)

Parsec

(b)

km

(c)

cm

(d)

litre

11. 10 x 1 = 10
12. Metre is the unit of ________

()

length

13. 1 kg of rice is weighed by ______

()

beam balance

14. The thickness of a cricket ball is measured by _______

()

Vernier Caliper

15. The radius of a thin wire is measured by ________

()

Screw gauge

16. A physical balance measures small differences in mass up to ______

()

1 milligram

17. The SI unit of volume is________.

()

Cubic metre

18. Least count of screw gauge__________.

()

0.01 mm

19. Least count of Vernier caliper is___________.

()

0.01 cm

20. Length, mass and time are called__________.

()

Fundamental unit

21. 1 Angstrom (A0)=__________m.

()

10-10

22. 5 x 1 = 5
23. A physical balance is more sensitive than a beam balance as it can accurately measure even a very small mass, even milligram

(a) True
(b) False
24. One Celsius degree is an interval of 1K and zero degree Celsius is 273.15 K

(a) True
(b) False
25. Two pan balance is commonly used in provisions and grocery shops.

(a) True
(b) False
26. Weight is the fundamental quantity.

(a) True
(b) False
27. In screw gauge the plane surface of the screw and opposite plane are brought into contact. If the zero of the head scale lies above the pitch scale axis the zero error is positive.

(a) True
(b) False
28. 5 x 1 = 5
29. Temperature

30. (1)

Hooke's law

31. Mass

32. (2)

Thermometre

33. Least count of screw gauge

34. (3)

0.01 mm

35. Spring balance

36. (4)

Matter

37. Mass

38. (5)

Beam balance