What charge does vinyl carry? When?

Vinyl carries a negative charge after it is rubbed together with wool.

 

What charge does acetate carry? When?

Acetate carries a positive charge after it is rubbed together with cotton.

 

What happens when two positively charged objects are close together?

When two positively charged objects are close together the two objects repel each other.

 

What happens when two negatively charged objects are close together?

When two negatively charged objects are close together the two objects repel one another.

 

What happens when positive + negative objects are close together?

When a positive and negative charged  objects are close together they attract each other.

 

what happens when a neutral object is close to a charged object?

When a neutral object is close to a charged object they will attract one another.