HEAT CLASS -7

Which of the following is reliable measure ?

• HOTNESS

• COLDNESS

• TEMPRATURE

• NONE OF THESE

Name the device which is used to measure hotness or coldness of an object.

• PICOMETER

• BAROMETER

• MANOMETER

• THERMOMETER

Heat always flows

• FROM A COLDER OBJECT TO HOTTER OBJECT

• FROM A HOTTER OBJECT TO COLDER OBJECT

• BOTH THE WAYS

• NONE OF THESE

Which one is filled in the bulb of thermometer?

• MERCURY

• LEAD

• COPPER

• SILVER

Conduction is the method of transfer of heat in

• LIQUIDS

• SOLIDS

• GASES

• VACUUM

Heat from the sun reaches to us by

• RADITION

• CONDUCTION

• CONVECTION

• ALL OF THESE

Heat in liquids travels from the

• BOTTOM TO TOP

• TOP TO BOTTOM

• RIGHT TO LEFT

• LEFT TO RIGHT

The substance which conduct heat easily are called :-

• CONVECTION

• RADIATION

• CONDUCTORS

• NONE OF THESE

The substances which do not conduct heat easily are called :-

• INSULATORS

• CONDUCTORS

• CONVECTION

• NONE OF THESE

Which scale is used in clinical thermometer nowadays ?

• CELSIUS SCALE

• FAHRENHEIT SCALE

• BOTH (A) AND (B)

• NONE OF THESE