Advertisements
Advertisements
Question
Fill in the blank
Green plants convert _________ energy into chemical energy.
Solution
Green plants convert light energy into chemical energy.
APPEARS IN
RELATED QUESTIONS
State the energy changes in the following case while in use:
A ceiling fan
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.
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:
A solar cell
Can any object have mechanical energy even if its momentum is zero? Explain.
Four men lift a 250 kg box to a height of 1 m and hold it without raising or lowering it.
(a) How much work is done by the men in lifting the box?
(b) How much work do they do in just holding it?
(c) Why do they get tired while holding it? (g = 10 m s–2)
For burning of coal in a thermoelectric station, the energy conversion taking place is: