Advertisements
Advertisements
प्रश्न
State the energy changes in the following case while in use:
A petrol engine of a running car
Advertisements
उत्तर
Chemical energy to mechanical energy.
APPEARS IN
संबंधित प्रश्न
State the energy changes in the following case while in use:
An electric iron
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in the Explosion of crackers.
State the energy changes in the following case while in use:
Washing machine
A boy is moving on a straight road against a frictional force of 5 N. After travelling a distance of 1.5 km he forgot the correct path at a roundabout (Fig. 11.1) of radius 100 m. However, he moves on the circular path for one and half-cycle and then he moves forward up to 2.0 km. Calculate the work done by him.
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.
If an electric iron of 1200 W is used for 30 minutes every day, find electric energy consumed in the month of April.
A light and a heavy object have the same momentum. Find out the ratio of their kinetic energies. Which one has larger kinetic energy?
State the energy changes in the following case while in use:
A glowing electric bulb
State the energy changes in the following case while in use:
An electric cell in a circuit
