PHYSICS TRUE / FALSE

Black surfaces are the poor absorbers of heat radiations.

Liquids are heated by conduction and radiation.

Land and sea breezes are convection currents of cold and warm air.

Medium is necessary for the transfer of heat by radiation.

Water is a bad conductor of heat.

Kerosene contracts on heating.

A mercury thermometer makes use of the property of the expansion of liquids on heating.

Solids expand the least and gases expand the most on being heated.

Equal volumes of different liquids expand by different amounts when they are heated to the same rise in temperature.

Telephone wires are kept tight between the two poles in summer.

All solids expand by the same amount when heated to the same rise in temperature.

Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.

On touching a lump of ice, we feel cold because some heat passes from our body to the ice.