Advertisements
Advertisements
प्रश्न
Name two substances which expand on heating.
Advertisements
उत्तर
Mercury and Aluminium wire.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The temperature of boiling water is _______
Fill in the blank
Gases expand _______ than the liquids.
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.
Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.
Select good and bad conductors of heat from the following:
copper, mercury, wood, iron, air, saw-dust, cardboard, silver, plastic, wool.
Explain why we wear woolen clothes in winter.
Why are chimneys provided over furnace in factories?
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
______ is the only matter on the Earth that can be found naturally in all three states.
Mention the factors affecting the flow of heat.
