P5.1 Flashcards
1
Q
What happens when two objects are rubbed together? Why?
A
They become charged because electrons are transferred from one object to another
2
Q
Similar charges …….
Opposite charges…..
A
Repel
Attract
3
Q
In metallic conductors,what is an electric current?
A
A movement of free electrons that are present throughout such materials
4
Q
In ____________ there are lots of charges free to move
A
Metallic conductors
5
Q
In an _______ there are few charges free to move
A
Insulator
6
Q
What is an electric current? What is it measured in?
A
A flow of charge measured in amperes (A)
7
Q
Electrons are ___________ charged
A
Negatively
8
Q
When an electric circuit is made,the ________ causes these free electrons to move,they are _________ but flow in a _______
A
(1) battery
(2) not used up
(3) continuous loop
