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Olympiad Test: Heat


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20 Questions MCQ Test Science & Technology for UPSC CSE | Olympiad Test: Heat

Olympiad Test: Heat for UPSC 2022 is part of Science & Technology for UPSC CSE preparation. The Olympiad Test: Heat questions and answers have been prepared according to the UPSC exam syllabus.The Olympiad Test: Heat MCQs are made for UPSC 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Heat below.
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Olympiad Test: Heat - Question 1

Method of heat transfer in steel rod is

Detailed Solution for Olympiad Test: Heat - Question 1

Heat transfer in steel rod is by the process of conduction because in metal heat transfer occurs by conduction.

Olympiad Test: Heat - Question 2

Temperature changes with change in

Detailed Solution for Olympiad Test: Heat - Question 2

With increase in heat energy the particles of matters start vibrating faster that increase the temperature of the body.

Olympiad Test: Heat - Question 3

Which of the following is a insulator

Detailed Solution for Olympiad Test: Heat - Question 3

those substances that do not conduct heat are called insulator. Copper, aluminium and graphite is conductor but air is insulator.

Olympiad Test: Heat - Question 4

Normal body temperature is

Detailed Solution for Olympiad Test: Heat - Question 4

Normal body temperature is about 370C which may vary with person to person.

Olympiad Test: Heat - Question 5

A wooden spoon is dipped in cup of ice-cream, its other end

Detailed Solution for Olympiad Test: Heat - Question 5

Wooden spoon is poor conductor of heat so; a wooden spoon dipped in cup of ice-cream does not become cold.

Olympiad Test: Heat - Question 6

The bottom of stainless steel pan have copper because

Detailed Solution for Olympiad Test: Heat - Question 6

The bottom of stainless steel pan has copper as copper is better conductor of heat to cook the food faster.

Olympiad Test: Heat - Question 7

Heat is a form

Detailed Solution for Olympiad Test: Heat - Question 7

Heat is a form of energy that gives feeling of hotness or coldness.

Olympiad Test: Heat - Question 8

Which of the following is the best conductor of heat?

Detailed Solution for Olympiad Test: Heat - Question 8

Metals are best conductor of heat. Metal transfers the heats by conduction in which particles are close to each other.

Olympiad Test: Heat - Question 9

10°C is equal to

Detailed Solution for Olympiad Test: Heat - Question 9

Kelvin = Celsius + 273. So, 100C is equal to 10+273 =283K.

Olympiad Test: Heat - Question 10

Which type of cloth is preferred in summer?

Detailed Solution for Olympiad Test: Heat - Question 10

Cotton clothes are preferred in summer because cotton clothes absorb sweats and make us more comfortable.

Olympiad Test: Heat - Question 11

Land breeze blows from

Detailed Solution for Olympiad Test: Heat - Question 11

During day time near costal area wind blows from land to sea called land breeze.

Olympiad Test: Heat - Question 12

Specific heat is -

Detailed Solution for Olympiad Test: Heat - Question 12

The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.

Olympiad Test: Heat - Question 13

Liquid used in thermometer is

Detailed Solution for Olympiad Test: Heat - Question 13

In thermometer mercury is used because it do not stick with wall of container, have shiny appearance and expand uniformly on heating.

Olympiad Test: Heat - Question 14

250C is equal to

Detailed Solution for Olympiad Test: Heat - Question 14

Kelvin = 273 + Celsius, hence, 250C = 273+ 25 = 298K .

Olympiad Test: Heat - Question 15

Liquid and gas transfer the heat by

Detailed Solution for Olympiad Test: Heat - Question 15

Liquid and gas transfer the heat by the process of convection. The hotter molecules in contact of hot object heat up and move upward to transfer the heat.

Olympiad Test: Heat - Question 16

Metals are ___________ conductor of heat.

Detailed Solution for Olympiad Test: Heat - Question 16

Metals are good conductor of heat as the particle of metals are in contact of each other to transfer the heat by conduction.

Olympiad Test: Heat - Question 17

Woollen clothes

Detailed Solution for Olympiad Test: Heat - Question 17

Woollen clothes keep us warm in winter because air trapped between threads act as insulator to prevent heat loss of the body.

Olympiad Test: Heat - Question 18

Degree of hotness or coldness is called

Detailed Solution for Olympiad Test: Heat - Question 18

Temperature changes with increase in energy.

Olympiad Test: Heat - Question 19

Sun’s light reaches to earth surface through

Detailed Solution for Olympiad Test: Heat - Question 19

Sun’s light reaches to earth surface through radiation as no medium is available from sun to earth to conduct heat.

Olympiad Test: Heat - Question 20

Boiling point of pure water is

Detailed Solution for Olympiad Test: Heat - Question 20

The temperature at which pure water start changing into water vapour is called boiling point. Boiling point of pure water is 1000C.

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