Question

class 7 cbse heat chaper ques ans mc question

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Answer 1

Explanation:

Q1

Paheli Wants To Measure The Body Temperature Of Boojho. She Got 36.4 Degree Celsius, 37.4 Degree Celsius And 36.6 Degree Celsius In First, Second And Third Times Respectively. What Is The Average Body Temperature Of Boojho?

[A]. 37.8 degree Celsius

[B]. 36.4 degree Celsius

[C]. 37.4 degree Celsius

[D]. 36.8 degree Celsius

Q2

In Which Of The Statement Is Or Incorrect?

[A]. A clinical thermometer consists a non-uniform glass tube.

[B]. Thermometric liquids can be seen in clinical thermometer.

[C]. The temperature of every person may not be 37 degree Celsius.

[D]. All the above

Q3

Paheli And Boojho Measured Their Body Temperatures. Paheli Found Her’s To Be 98.6 Degree Fahrenheit And Boojho Recorded 37° Celsius. Which Of The Following Statement Is True?

[A]. Paheli has a higher body temperature than Boojho

[B]. Paheli has a lower body temperature than Boojho

[C]. Both have normal body temperature

[D]. Both are suffering from fever

Q4

Stainless Steel Pans Are Usually Provided With Copper Bottoms. The Reason For This Could Be

[A]. Copper bottom makes the pan more durable

[B]. Such pans appear colorful

[C]. Copper is a better conductor of heat than the stainless steel

[D]. Copper is easier to clean than the stainless steel

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Q5

Why Should We Avoid Keeping The Thermometer In The Sun Or Near A Flame?

[A]. It measures flame temperature

[B]. Sun temperature can be measured

[C]. Automatically it may break

[D]. Vapour can create under thermometer