Physics Conduction Friction and Induction Review

Charging by friction

To charge using friction to objects must come in contact or rub together

Why is there more static in winter

Air is more dry so there is less chance for a charged object to collide with a water molecule. This allows static charges to build up more easily.

An object that gains electrons becomes negatively charged, while an object that loses electrons becomes positively charged.

Which one gain/lose electrons and charges

Process of charging by friction

Before = neutral

during = lose/gain

after = different charges

Charging by conduction

When charging by conduction two objects must come in physical contact.

What happens to the charges in after charging by conduction and friction

friction = different charges

conduction = same charge

Process of chargin by conduction

electrons move to neutralize charges and objects end up with same charge.

different variations for conduction

• negatively charged → electrons move towards neutral = negatively charged

• positively charged → electrons move towards nuetral to charged object = positively charged 

• both charged → electrons move from lower + charge to higher + charge = same + charge

Best way to ground?

Touch a conductor connected to the ground.

Conductor

Allow electrons to move freely through them 

Insulator

Prevent or inhibit the movement of electrons

Charging by induction

using a charged object to charge an object without contact

Charging by induction temporary process

shifts the positions of electrons and it results in unequal charges but electrons move back.

grounding with induction

you can permenantly charge an object with induction if grounded.