I am also a victim of the misconceptions. We always believe what our teachers use to tell us, but is better to read more about the subject matter so that we can know the basic principles involved. Until now, I use to believe that weightlessness occurs when the force of gravity of a body is zero, but with this explanations, I found out that it is due to the change in the normal force. @Oluwabori, you have really changed my point of view about the topic. Thanks