Advertisements
Advertisements
प्रश्न
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
Advertisements
उत्तर
Good conductors — Mercury, copper, silver, iron.
Bad conductors — Wood, air, saw dust, plastic, wool, cardboard.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
Equal volumes of different liquids expand by different amounts when they are heated to the same rise in temperature.
Fill in the blank
On heating a body, its temperature _______.
Fill in the blank
In a thermometer, the commonly used liquid is _______
Fill in the blank
Still air is an __________ of heat.
The fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.
What do you understand by thermal expansion of a substance ?
State which expands more, when heated to the same temperature : solid, liquid or gas ?
What are the effects of heat?
When we heat them the force of attraction between the molecules decreases and the ice cubes become ______.
______ is greater for liquids than solids and it is maximum in gases.
