Jean Piaget was a developmental psychologist - c. Piaget was infact one of the most known developmental psychologists which are very important and have been very important for the development of developmental psychology. He has had tremendous impact on the different fields within psychology and out of it.
Answer:
A. Fulcrum is between the pull and the load
Explanation:
In the first class levers, the Fulcrum is present between the force or effort and the load. Pliers, scissors, a crow bar, a claw hammer, a see-saw and a weighing balance are the examples of first class levers in which the fulcrum exists in the center while the effort is located at one side and the load is present on the other side of the fulcrum.
Yes because when you want something to be perfect you tend to try and imagine it beforehand so you know what to do perfectly and if you mess up you can imagine punching the person who messed you up :)