Tamil Nadu (English Medium) Std 9 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Micrometer screw gauge is used to measure very small objects to

(A) 1 cm	(B) 0.1 cm
(C) 0.01 cm	(D) 0.001 cm

Question-2
Which of the following is the SI unit for length?

(A) Centimetre	(B) Metre
(C) Kilometre	(D) Mile

Question-3
The most accurate time measurement device is:

(A) Quartz clock	(B) Electrical Oscillators
(C) Caesium - atomic clock	(D) Seconds Pendulum

Question-4
Which of the following instrument is used for measuring weight ?

(A) Spring balance	(B) Two pan balance
(C) Physical balance	(D) Vernier caliper

Question-5
Which element is used as the electronic oscillator in quartz clock?

(A) Sand	(B) Iridium
(C) Quartz	(D) Diamond

Question-6
Which of the following is the part of a vernier caliper that is used for measuring the external diameter of a cylindrical tube?

(A) Outside jaw / external jaw	(B) Inside jaw / internal jaw
(C) Tail	(D) None of the above

Question-7
Which of the following instrument helps to measure very tiny materials in general chemistry labs ?

(A) Weigh bridge	(B) Medical scale
(C) Physical balance	(D) Digital balance

Question-8
Which of the following is the primitive form of a clock which work on the principle of shadow?

(A) Sundial	(B) Sand clock
(C) Digital clock	(D) Solar clock

Question-9
Which of the following instrument is more accurate in taking measurements?

(A) Vernier calipers	(B) Digital vernier calipers
(C) Metre scale	(D) Ordinary scale

Question-10
Which of the following is used in measuring weight in jewellery shop?

(A) Beam balances	(B) Medical scale
(C) Physical balance	(D) Digital balance

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Std 9

Tamil Nadu (English Medium)

Practice in Related Chapters
Motion and Liquids
Sound
Work, Power, Energy and Heat
Measuring Instrument