How does a thermometer work ? Explain with diagram. Label the diagram.
Which ball has more average K.E if a ball is 10 kg with 100 degrees and other 75 kg with 25 degree.
Which ball has lower heat energy ? A metal ball of 10kg at 100 degrees or a ball of 75 kg at 25 degrees.
When hot iron is kept in cold water, temperature reduces. where as temperature of water increases why ?
Why are small spaces left between successive rails in railway track.
When we get out of bed in the cold morning , we feel the air of room cold . but after sometime same air feels warm. why ?
During high fever a wet cloth is kept on the patient forehead . why ?
Mention the boiling point and freezing point of mercury .
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