What is an electric field?

Opposite charges (a)_______
Similar or like charges (b)_____

What is the difference between a charge with -1 vs -3?

Why does field strength decrease as you get further away?

What is static electricity and how is it caused?

Why, when using a Van de Graaff generator, do you get sparks?

(a) What is current and (b) what are the units?

What is the equation for current?

Give the definition of "potential difference".

What is the equation for potential difference?

what does it mean if the p.d. is 5V?

What is resistance?

Resistance is (a)________ proportional to p.d./Voltage.
Resistance is (b)_________ proportional to current.

What is resistance measured in?

What is the equation for resistance?