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Question
Who am I?
I make things hot or cold.
Solution
I make things hot or cold- Temperature
RELATED QUESTIONS
Convert 5°F to the Celsius scale.
A bridge is made from 20 m long iron rods. At temperature 18∘C, the distance between two rods in 0.4 cm. Up to what temperature will the bridge be in good shape?
Who am I?
I’m found in a thermometer, I measure your temperature.
Name or state the following:
The law which states that pressure remaining constant the volume of a given mass of dry gas is directly proportional to its absolute [Kelvin] temperature.
Why do we wear woolen clothes in winter?
Define coefficient of volume expansion.
What is the relation between α and γ?
Convert the following temperature into Fahrenheit scale:
600C
The following figure shows a rectangular box with two tubes P and Q at the top. A burning candle R is placed under the tube P. The candle burns brightly.
Explain:
(i) How is the air in the box circulating?
(ii) What will happen if the opening Q is closed?
Where am I?
The mean annual temperature is 25°C around me.
Who am I?
I connect places of equal temperature.
Give reason for the following
The electric wire which sag in summer become straight in winter.
Thermal energy always flows from a system at higher temperature to a system at lower temperature.
Heat energy flows from a body at a low temperature to a body at a higher temperature.
What is the minimum possible temperature? Is there also a maximum possible temperature?
