Physics - Heat

What is the S.I. unit of heat?

• Calorie

• Celcius

• Joule

• Kilocalorie

Heat is a form of energy which flows from a __________ when they are kept in contact.

• hot body to a cold body

• cold body to a hot body

• cold body to a cold body

• hot body to a hot body

1 kcal = ______ cal

• 10

• 100

• 10000

• 1000

_________________ THERMOMETERS RANGE IS 35⁰C TO 42⁰.

• LABORATORY

• MAXIMUM AND MINIMUM

• CLINICAL

• ALL

CLINICAL THERMOMETER IS USED TO MEASURE THE TEMPERATURE OF ______________.

• HUMAN BODY

• TREES

• CHEMICALS

• NONE

LABORATORY THERMOMETER range ?

• -110⁰C TO 10⁰C

• - 10⁰C TO 110⁰C

• 0⁰C TO 110⁰C

Digital thermometer has a __________, which is used to sense the temperature.

On heating the Liquids show expansion in

• Increase in length

• Area

• increase in shape

• Cubical expansion

General effect of Heat is/are :

• Changes the temperature of a substance

• Changes the dimension of an object

• Changes the states of matter

• All of these

Small gaps are left between the railway tracks to accommodate the expansion of the metal during summers. Explain