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
Which of the following is used to measure the body temperature?

(A) Clinical thermometer	(B) Laboratory thermometer
(C) Heater	(D) None of these

Question-2
Clinical thermometer has

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

Question-3
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-4
Our normal body temperature in ⁰C is

(A) 60	(B) 37^oC
(C) 40	(D) None of these

Question-5
The boiling point of water on the Kelvin scale is

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

Question-6
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-7
Convection of heat takes place in

(A) Only solids	(B) Only liquids
(C) Liquids and solids	(D) Liquids and gases

Question-8
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-9
Dark - coloured clothes keep the body warm because they are

(A) Good absorber of heat	(B) Bad absorber of heat
(C) Neither good nor bad absorber of heat	(D) None of these

Question-10
Which of these will expand the most on heating?

(A) Gold	(B) Water
(C) Mercury	(D) Air

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Std 7

CBSE

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