Questions

Touching a cup of hot tea feels hot but touching an ice cube feels cool. Explain it based on the motion of their molecules.

In the perception of a certain man, a bucket of lukewarm contains more thermal energy than a large tank of cold water. Correct this understanding based on the definitions of thermal energy and temperature.

Temperature differs a lot between the day and night in the desert, why?

There is no significant difference in temperature between the daytime and the nighttime in the coastal areas.

The hot water bag is used to give hot pressure to the parts of a body, why?

To cool the car's engine, water is kept in its radiator.

Water pipes crack in cold places in the winter, why?

Tea in an open teacup stops cooling after some time, why?

An iron bar heats up when it is hammered continuously for some time.

Differentiate: the lower fixed point and the upper fixed point of a thermometer