Why is motor not to turn?

l'm high school student, 15 years old.
please check the pictures and answer my question?
thank you friends ,



Welcome to the forum

That is a stepper motor

As the name says, it moves in steps. Those steps occur because carefully timed pulses are sent into the yellow and green wires

As you are not doing that the motor will not turn and you may have damaged your motor. What is on the other end of the white wire in the second 'photo ?

thank you!!
connected to the + pole of the power supply

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