Why Doesn't Lightning Pull the Cloud to the Ground?

[gabby989062]

Homework Statement

We were reading about lightning and how the cloud has a different charge than the ground. We know that lightning happens because of induction. But if the charges are different, why doesn't the Earth pull the cloud to the ground, or repel it higher into the air?

Homework Equations

The Attempt at a Solution

 

[PhanthomJay]

It wouldn't repel the cloud, since the charges are opposite; but it does attract the cloud, although it is a very small movement. More noticeable might be your hair standing up straight up on end just before the bolt strikes...if it does, you're in big trouble...crouch low, click those heels together, block your ears, ...and pray ...