Heat 7

Question 1

Melting pt of mercury

Answer 1

-39 C

Question 2

SI unit of energy and work

Answer 2

Joules

Question 3

In Fahrenheit scale no of division

Answer 3

180 from 32 to 212

Question 4

Heat energy is measured in

Answer 4

Calories

Question 5

Thermometer was found by

Answer 5

Galileo Galilei

Question 6

SI unit of temperature

Answer 6

Kelvin

Question 7

Celsius scale was discovered by

Answer 7

Swedish astronomer Celsius

Question 8

1kilocalorie=

Answer 8

4200 joules

Question 9

Which scale is widely used for clinical and meteorological services

Answer 9

Fahrenheit

Question 10

Normal human temperature

Answer 10

98.6F or 37C

Question 11

Bimetallic strip example

Answer 11

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

Question 12

1 joule=

Answer 12

4.2 calories

Question 13

Clinical thermometer range

Answer 13

95-100F or 35 -43 C

Question 14

Laboratory thermometer range

Answer 14

-10 to 110 C

Question 15

Kilocalories are also called

Answer 15

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

Question 16

Celsius scale also called

Answer 16

Centigrade scale

Question 17

Relation between Fahrenheit,Celsius,Kelvin

Answer 17

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

Question 18

SI unit of power

Answer 18

Watt that is joule per sec

Question 19

There can be no temperature below

Answer 19

0 kelvin

Question 20

Heat energy is

Answer 20

Total sum of kinetic and potential energy of its molecules

Question 21

Name the best conductor of heat.

Answer 21

Silver followed by copper