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Flashcards in Heat 7 Deck (21)
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1
Q

Melting pt of mercury

A

-39 C

2
Q

SI unit of energy and work

A

Joules

3
Q

In Fahrenheit scale no of division

A

180 from 32 to 212

4
Q

Heat energy is measured in

A

Calories

5
Q

Thermometer was found by

A

Galileo Galilei

6
Q

SI unit of temperature

A

Kelvin

7
Q

Celsius scale was discovered by

A

Swedish astronomer Celsius

8
Q

1kilocalorie=

A

4200 joules

9
Q

Which scale is widely used for clinical and meteorological services

A

Fahrenheit

10
Q

Normal human temperature

A

98.6F or 37C

11
Q

Bimetallic strip example

A

Brass and copper.( expansion of brass is more than copper)

12
Q

1 joule=

A

4.2 calories

13
Q

Clinical thermometer range

A

95-100F or 35 -43 C

14
Q

Laboratory thermometer range

A

-10 to 110 C

15
Q

Kilocalories are also called

A

Doctors calories or big calories or Calorie( with capital C )

16
Q

Celsius scale also called

A

Centigrade scale

17
Q

Relation between Fahrenheit,Celsius,Kelvin

A

C/5=(F-32)/9=(K-273)/5

18
Q

SI unit of power

A

Watt that is joule per sec

19
Q

There can be no temperature below

A

0 kelvin

20
Q

Heat energy is

A

Total sum of kinetic and potential energy of its molecules

21
Q

Name the best conductor of heat.

A

Silver followed by copper