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10Energy is the capacity of doing work.
Energy is measured in calorie in the S.I. system.
One calorie is equal to 4.2 joules.
Heat always flows from a colder body to a hotter body.
Coal and petroleum are renewable sources of energy.
Conduction occurs mainly in solids.
During conduction, molecules move from one place to another.
Metals are generally good conductors of heat.
Plastic is a good conductor of heat.
Woolen clothes keep us warm by preventing loss of body heat.
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The S.I. unit of energy is
Which of the following is a renewable source of energy?
Heat transfer without movement of particles is called
Which material is a good conductor of heat?
Which energy is obtained from food?
The transfer of heat from hotter body to colder body is called
Which material is used for utensil handles?
Which non-metal has high thermal conductivity?
Warm clothes keep us warm mainly because they
Which energy source cannot be replaced once exhausted?
The capacity of doing work is called ______.
The S.I. unit of energy is ______.
One calorie equals ______.2 joules.
Heat flows from a ______ body to a colder body.
The transfer of heat in solids is called ______.
Materials that allow heat to pass easily are called ______.
Wood and plastic are ______ of heat.
Coal and petroleum are ______-renewable sources of energy.
Woolen clothes keep us warm by trapping ______.
Diamond has very high ______ conductivity.