Advertisements
Advertisements
प्रश्न
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in respiration.
Advertisements
उत्तर
Chemical energy changes into heat energy.
APPEARS IN
संबंधित प्रश्न
State the energy changes in the following while in use An electric bulb.
State the energy changes in the following while in use A loudspeaker .
Fill in the blank
Green plants convert _________ energy into chemical energy.
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in the Charging of a battery.
Choose the odd one:
A rocket is moving up with a velocity v. If the velocity of this rocket is suddenly tripled, what will be the ratio of two kinetic energies?
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 power of a motor pump is 2 kW. How much water per. the minute the pump can raise to a height of 10 m? (Given g = 10m s−2)
If an electric iron of 1200 W is used for 30 minutes every day, find electric energy consumed in the month of April.
The energy conversion in a washing machine is from ______.
