Question

Which one of the following is not an effect of a force?
A. A dented ping pong ball.
B. A wind sock fluttering in the wind.
C. An apple fruit falling from the tree
D. A bar of chocolate melting under the Sun
JUSTIFY YOUR ANSWER....:)

Answer 1

D. because no force act on it.It is a physical change by the sun's heat.

Answer 2

among all these "a bar of chocolate melting under the sun " . because the bar of chocolate is melting under the sun by the process of evaporation .