Maxwell’s First Equation: Like charges repel; opposites attract. The proton has a positive charge, the neutron has no charge (neutron, neutral get it?) and the electron has a negative charge. These charges repel and attract one another kind of like magnets repel or attract. Like charges repel (push away) one another and unlike charges attract one another. Generally things are neutrally charged. They aren’t very positive or negative, rather have a balance of both.


Materials: balloon


[am4show have=’p8;p9;p10;p37;p92;’ guest_error=’Guest error message’ user_error=’User error message’ ]
Rub your head with a balloon and hold the charged balloon near your head so that your hair sticks to the balloon. Is there glue on the balloon? Why does your hair stick to the balloon?


Answer: The positively charged hair sticks to the negatively charged balloon.


Find out more about this key principle in Unit 10.



[/am4show]


Have a question ?

Tell us what you're thinking...

Comments

4 Responses to “Maxwell’s First Equation”

  1. Yikes! I’ll check that out right away!!

  2. Anonymous says:

    I realize it was an inadvertent misspeak, but at 0:22 you say that like charges are plus and minus. Probably everyone corrects it to your intended “minus and minus.” 🙂

  4. Stacey Moore says:

    ur awesome
    im Reagan Osborn, stacys daughter
    and I love this