Advertisements
Advertisements
प्रश्न
State the energy changes in the following case while in use:
A ceiling fan
Advertisements
उत्तर
Electrical energy into mechanical energy.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Green plants convert _________ energy into chemical energy.
State the energy changes that occur in the following :
An electric generator (or dynamo).
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in a loaded truck when started and set in motion.
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in a car going uphill.
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in photosynthesis in green leaves.
State the energy changes in the following case while in use:
An electromagnet.
Choose the odd one:
Can any object have momentum even if its mechanical energy is zero? Explain
The velocity of a body moving in a straight line is increased by applying a constant force F, for some distance in the direction of the motion. Prove that the increase in the kinetic energy of the body is equal to the work done by the force on the body.
Is it possible that an object is in a state of accelerated motion due to external force acting on it, but no work is being done by the force? Explain it with an example.
