Conductors and insulators

1

What is the charge of an electron?

2

An atom has a neutral charge, because it contains the same number of protons and electrons. If it loses an electron what does it become?

3

What is a flow of charged particles called?

4

What charged particles flow in a metal when electric current flows?

5

Why are metals good conductors of electricity?

6

Which of the following materials is an insulator?

7

What is the direction of conventional current flow?

8

What is the direction of free electron flow?

9

What direction is marked on all circuit diagrams?

10

What is the symbol for electric current?