## Electromagnetism V. Gravity

This is the second edition of *drum rolls* Pop Quizz! A quizz in which the answers are not obvious and if it is obvious, and you get it wrong, you are rebuked at!!!

Occasionally, I will occasionally ask a question, and the reader will answer them! For every wrong answer, I will consider one of your comments a spam. Ha! See how you like that suckers! (I am kidding, of course) Sometimes, a wrong answer won’t invite rage, some really obvious one will, and you will be called an idiot if you can’t answer the obvious one. In fact, I may have to make an extra page on my blog for the lists of idiots. 🙂 So, let the question begin!!!

The question is  0. which one of those forces are stronger (if you get this one wrong, I will be all over you 😉 ), and 4. by how much!!? Extra credit 3. if you know what the equations for force is depending on the distance.

Hint and answer by entering the page.

Hint: Look at the constants for gravity and charge…. (*Obi Wan’s voice* use your brain…)

*drum rolls*

*dying with anticipation*

Electromagnetism is much, much, much, much stronger than gravity, by a factor of 1.34×10^20. That means 1.34 followed by 18 zeroes. It should have been obvious that electriciy is stronger because of the fact that a huge mass the size of the Earth is needed to keep us from jumping like astronauts, while a small magnet can attract things up against the flow of gravity. Even the gravity of Earth is no match for the little magnet. You can find the answer by dividing the gravitational constant by coulomb’s constant: (9×10^9)/(6.7×10^-11). As you can see, gravity is reaaallyy weak, with 0. followed by  10 zeroes after the decimal, and a 67 at the end. If you said gravity was stronger, you deserve to be knocked on the head. 😉