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Name the three modes of transfer of heat.
Fill in the blank and rewrite the sentence.
If objects of equal masses are given equal heat, their final temperature will be different. This is due to difference in their ................. .
Cooking utensils are made from metals due to their property of ______.
What will absorb heat?
Iron griddle (tava)
Give a scientific reason.
In winter, why does an iron pillar feel colder than a wooden pole?
1 calorie is 4.81 joules.
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
We reduce the heat by adding ______ while preparing fruit juice.
______ energy can be generated by the burning of fuels like coal, wood, charcoal, gasoline, etc.
A circular metal loop is heated at point O as shown in the following figure.
- In which direction would heat flow in the loop?
- In which order are the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
