Physics Unit 5 Flashcards
A _____ is a device that stores electrical charges
capacitor
The electrical force between two charged objects is _____ than the gravitational force between them.
much more
A negatively charged object touches another object, changing its charge through _____.
direct contact
When Point A’s E.P.E. is divided by the charge expressed in ______, the ________ results.
coulombs, electric potential
The greater the _____ between two masses, the lower the gravitational force.
distance
When electrons travel from a battery’s negative post to its positive post, that is _____.
direct current
At point A, the EP refers to the ______, or the amount of energy that exists for a particular charge in an energy field. It is measured in ______.
electric potential, volts
Particles that carry negative charges and move in orbitals are _____.
electrons
A property of materials responsible for their attraction or repulsion to magnetic fields caused by moving charges is _____.
magnetism
A regular atom has a net charge of _____.
zero
An object may have _____ that protects it from electrical force but not gravitational force.
shielding
The gravitational force between two charged objects is _____ than the electrical force between them.
much less
One atom has excess electrons and another has had electrons removed, they are both termed _____.
ions
_____ current flows from positive to negative.
conventional
A slab of nickel metal transmits electrical charges from one end to another, so it is a(n) _____.
conductor
When the electric potential in a generator shifts back and forth _____ is created.
alternating current
Particles that carry no charge or are neutral inside the atom’s nucleus are _____.
neutrons
Electrical force can result in either attraction or _____.
repulsion
More electrons than protons are on a sphere’s surface; therefore, the sphere has a(n) _____ charge
negative
Metals may be become magnetized more easily that other materials because they have more _____ spinning one way than the other.
electrons
SI unit for electrical charge is the _____.
Coulomb
The greater the _____ between two charges, the lower the electrical force.
distance
Devices that control electric circuits by restricting current flow are _____.
resistors
Since point A has a higher electric potential than point B, charges flow towards _____.
point b
Particles that carry positive charges inside the atom’s nucleus are _____.
protons
One mass is attracted to another due to _____.
gravitational force
One charge _____ the other because their charges are different.
attracts
You shuffle across a rug, touch a doorknob, and receive an electrical shock due to the buildup of electrons in you skin that is called _____.
static electricity
Gravitational force can only result in _____.
attraction
A positively charged object is brought near another object which then becomes positively charged through _____.
induction
The charges of an electron and a proton make them _____ each other.
attract
The energy for the charge at a certain point in an electrical system; expressed in volts is called _____.
electric potential
A circuit in which several components are in the same path is a(n) _____.
series
Magnetism’s strength is related to the _____ of the distance between two magnetized objects.
inverse-square
Capacitors are rated according to _____, the SI unit that is a measurement of the ability to store charge.
farads
One charge is attracted to another due to _____.
electrical force
In a(n) _____ circuit each component has a separate circuit.
parallel
Electric force and gravitational force have _____ relationships
inverse-square
Transformers only operate on _____ current.
alternating
