This week we learned about solenoids. They were kind of confusing but if I remember correctly a solenoid is a type of electromagnet that is a coil and its purpose is to generate a controlled magnetic field. One thing we did was watch this video of a news guy and a science guy who put a straight line of the solenoid and try to play music with it but it didn’t come out that clear, but when he made the coil the music was loud and clear for you to hear it.
kayla's guitar 