Advertisements
Advertisements
Question
Give an example
Chemical energy changes to heat energy.
Advertisements
Solution
Candle flame
APPEARS IN
RELATED QUESTIONS
Work done by a boy depends on the time in which he does work.
.A man raises a box of mass 50kg to a height of 2m in 20s, while another man raises the same box to the same height in 50s. Compare:
(i) the work done, and
(ii) the power developed by them.
The work done by a force acting obliquely is given by the formula : W = F cos θ ✕ s. What will happen to the work done if angle θ between the direction of force and motion of the body is increased gradually? Will it increase, decrease or remain constant.
The work done on an object does not depend on the :
The work done on an object does not depend on ______.
Fill in the boxe to show the corresponding energy transformation.
State larger units of power.
The work done by the heart is 1 Joule per beat. Calculate the power of the heart if it beats 72 times in one
