PHYS165 / PHYS 165 Module 7: (Latest
Update 2026) Physics | Questions &
Answers | Grade A | 100% Correct -
Portage Learning
Electric force
the force between all electric charges
Static electricity
the study of charged objects at rest
What is a nucleus made up of?
protons (positively charged) and neutrons (chargeless/neutral)
What orbits the nucleus?
Electrons (small but very fast)
Charge carrier that moves
electrons
Charge of a neutral object
Equal number of positive and negative charge in it (normally objects are)
Negative object
more electrons than protons
Positive object
Fewer electrons than protons
Net charge
total charge after positives and negatives cancel
, Fundamental Law of Electrostatics
opposite charges attract each other and like charges repel
Charging by friction
Electrons transfer by rubbing objects together
Charging by conduction
Charge transfers by direct contact
(A charged object touches another object and charge is transferred from one to the
other, no friction is needed)
Conductors
Materials in which electrons are free to roam from atom to atom
ex: metals, aluminum, steel, copper
Insulators
Materials in which the electrons are so attracted to their atom that they do not move
from their atoms or allow charge to move through them.
Not free to roam.
Ex: plastics, wood, air, rubber , other non metallic substances
Electroscope
An instrument used to detect electric charge
Charging by polarization
Update 2026) Physics | Questions &
Answers | Grade A | 100% Correct -
Portage Learning
Electric force
the force between all electric charges
Static electricity
the study of charged objects at rest
What is a nucleus made up of?
protons (positively charged) and neutrons (chargeless/neutral)
What orbits the nucleus?
Electrons (small but very fast)
Charge carrier that moves
electrons
Charge of a neutral object
Equal number of positive and negative charge in it (normally objects are)
Negative object
more electrons than protons
Positive object
Fewer electrons than protons
Net charge
total charge after positives and negatives cancel
, Fundamental Law of Electrostatics
opposite charges attract each other and like charges repel
Charging by friction
Electrons transfer by rubbing objects together
Charging by conduction
Charge transfers by direct contact
(A charged object touches another object and charge is transferred from one to the
other, no friction is needed)
Conductors
Materials in which electrons are free to roam from atom to atom
ex: metals, aluminum, steel, copper
Insulators
Materials in which the electrons are so attracted to their atom that they do not move
from their atoms or allow charge to move through them.
Not free to roam.
Ex: plastics, wood, air, rubber , other non metallic substances
Electroscope
An instrument used to detect electric charge
Charging by polarization
