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प्रश्न
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.
उत्तर
The chemical energy of petrol or diesel is converted into mechanical energy (kinetic energy).
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संबंधित प्रश्न
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 unwinding of a watch spring.
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 the Charging of a battery.
State the energy changes in the following case while in use:
loudspeaker
Choose the odd one:
If an electric iron of 1200 W is used for 30 minutes every day, find electric energy consumed in the month of April.
Define watt. Express kilowatt in terms of joule per second. A 150 kg car engine develops 500 W for each kg. What force does it exert in moving the car at a speed of 20 ms–1?
The energy conversion in a washing machine is from ______.
