CBSE Std 7 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in


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Question-1
The thermometer used to measure body temperature is

(A) Clinical thermometer	(B) Digital thermometer
(C) Laboratory thermometer	(D) Kelvin thermometer

Question-2
The SI unit of temperature is

(A) ⁰C	(B) K
(C) ⁰F	(D) All the above

Question-3
The boiling point of water on the Kelvin scale is

(A) 273 K	(B) 100 K
(C) 212 K	(D) 373 K

Question-4
Which is the only melt found in the liquid state at room temperature?

(A) Mercury	(B) Copper
(C) Silver	(D) Aluminium

Question-5
A clinical thermometer ranges from

(A) 20^oC - 40^oC	(B) 36^oC - 52^oC
(C) 94^oC - 108^oC	(D) 35^oC - 43^oC

Question-6
A bimetallic strip is made of metals M₁ and M₂. On cooling through the same temperature, M₁ contracts more than M₂. When the strip is heated, it will

(A) Bend towards M₁	(B) Bend towards M₂
(C) Not bend at all	(D) Direction of bending cannot be predicted

Question-7
in solids, the transfer of heat takes place by

(A) Convection	(B) Conduction
(C) Radiation	(D) All of these

Question-8
Temperature is measured by measuring expansion on heating. Expansion in which of these is most commonly used?

(A) Solid	(B) Liquid
(C) Gas	(D) None of these

Question-9
Clinical thermometer has

(A) Alcohol as liquid	(B) A kink in its stem
(C) water as liquid	(D) None of these

Question-10
0^oC is the same temperature as

(A) 0^oF	(B) 212^oF
(C) 32^oF	(D) 100^oF

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Std 7

CBSE

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