Physics- Electrostatic Field Force Flashcards
Shock come from
A discharge of static electricity from your body to an object
Discharge can be seen
As a spark
The total positive electric charge in the nucleus is
Balanced by the total negative charge of the electrons around the nucleus.
If you remove one or more electrons
The atoms is no lined neutral but positively charged
If you rub two different types of materials against each other
Some of the electrons can be transferred from one material to the other. This leaves one negatively charged (material that picked up electrons) and other materials is positively charged (material that lost electrons)
Only electrons
Can be transferred from one material to the other
Static electricity has
Potential energy. This energy comes from the energy spent on the running process
How lightning is formed
When wind blows thunderclouds, it creates friction between the ice particles and water droplets in the cloud, which move past each other in the atmosphere.
Thus friction is responsible for a very high electrostatic charge build-up inside the cloud.
If the electrostatic charge becomes high enough, it discharges in the form of a lightning bolt to the earth.
The energy in a lightning bolt is
Very high and can cause severe damage and death with a fraction of a second
Lightning discharge usually
Hits high points
Protection against lightning
Lightning conductors provide a safe path for electricity to travel to the earth.a metal rod with the bottom end buried in the soil and the top end attached to a sharpened.
Hide in the lowest possible position if outside.
Stay clear of bodies of water or tall trees.
Seek shelter.
When inside, avoid showering, taking baths or washing dishes.
Avoid using appliances that conduct electricity, such as landlines and televisions.
Stay inside half an hour after you hear thunder or last see lightning
