Work = Force x DistanceWhen multiplying by 10 you simply shift all the digits to the left and append a 0 to the end.so 150 x 10 = 1500 JoulesExtra CreditThe Joule is defined as the amount of energy expended when a force of one Newton is applied through a distance of one meter.This kind of question is easier to answer if you learn the descriptive definitions for the SI units.