Electromagnet - a magnet that generates a magnetic field when an electrical current is passed through it (Brain)
Permanent Magnet - an object that generates its own magnetic field ("Magnetism") Poles - the positive or negative sides of a magnet Cone - the part of a speaker that amplifies the vibrations of the electromagnet and creates sound Woofers - a type of speaker that is larger in size and creates notes of lower frequency Tweeters - a type of speaker that is smaller in size and creates notes of higher frequency Frequency - how often particles in an object vibrate; sounds of higher frequency have a higher pitch and notes of lower frequency have a lower pitch ("Pitch") |