Electric Charge and Fields - Y11 SACE

Question	Answer
Electric Charge	A property of electrons and protons, which have a negative and positive charge respectively. The Coulomb is the SI unit of electric charge.
Like charges _______, while unlike charges __________ each other	repel, attract
An excess of electrons causes a body to become ________ charged, whereas a deficiency of electrons causes a body to become ___________ charged	negatively, positively
Conductor	A material that contains charged particles that are free to move called charge carriers.
Insulator	A material that does not contain charge carriers
"Earthed"	A body is earthed if it is connected to the Earth by a conducting path
An object may be charged by:	Friction, Contact, or Induction
Law of Conservation of Charges	The total amount of electric charge never changes, it is only transferred
Electric Field	A region where an electric charge experiences a force
Electric Field Strength	The force per unit charge a small positive charge would experience if placed at that point. The unit is NC^-1
Field Lines	A representation of an electric field, such that the direction of the field is at a tangent to the line, and the magnitude of the field at any point is represented by the spacing of the lines
Electric Potential Energy	The potential energy of a charge in an electric field
Electric Potential difference (Voltage) between 2 points:	The change in potential energy or work done per unit charge in moving a small positive test charge between them

Resource summary

	Created by Ben Goetze over 9 years ago