Tag: concept of energy
Questions Related to concept of energy
The work done by the external forces on a system equals the change in:
Find the change in internal energy in joulewhen 10$\mathrm { g }$ of air is heated from $30 ^ { \circ } \mathrm { C }$ to $40 ^ { \circ } \mathrm { C }$$( \mathrm { c } = 0.172 \mathrm { kcal } / \mathrm { kg } / \mathrm { KJ } = 4200 \mathrm { J } / \mathrm { kcal } )$
The energy generated in stars is because of
What will be the potential energy of a body of mass 5 kg kept at a height of 10 m ?
Define one kilo-calorie of heat.
What physical quantity does the electron volt(eV) measure?
The SI unit of energy is:
When heated, molecules absorb ____ and their capacity to do ____ increases.
1 kilowatt hour $=$ ___________ .
The capacity of a body to do work is called ______ .