surrounds eveery elecrtic charge and exertrs a force that either attracts or repels pther electric charge
opposite charges attract
likes charges repel
electric force
100
stored enegry
PE= (mass)(gravity)(height) P=mgh more mass= more enegry more height = more enegry
potential engery (PE)
100
charge by contact or charge by induction ( coming near a charge )
charging methods
100
(not flowing) is due to an accumulation of electrc charge on and object
electric charge is detected with an electroscop
static electricity
200
stored in things that stretch or compress
elastic potential
200
deforming wheel and surface provides resistance
type of friiction rolling
200
kinetic enegry + potential enegry
mechanical energy
200
changes mass into enegry
nuclear enegry
200
momentum can be transferred from one object to another but never lost
law of conservation of momentum
300
conatins two different electrodes in an eletrolyte solution. Ex. Car, motorcycle battery.
wet cell
300
is the region around a mlagnet where the force acts
magnetic field
300
energy of position, based on the objects height above the ground
gravitational potential ( GPE )
300
mangets have aligned magnetic domains
magnetic domains
300
is a path for electric current to flow.
closed circuit
400
is the ability to cayse change ( do work ) and is measured in joules (j).
enegry
400
rubbing of two objects past one anither ( lubricants reduce friction)
type of friction sliding
400
are materials in which electrons are not able to move easily. Ex. rubber or glass.
insulators
400
is the flow or net movement of electrons. measured in amperes (amps)( the number of electrons)
current
400
enegry cannot be created or destroyed.
falling objects convert potential energy to kinetic enegry
friction- converts some kinetic energy into thermal enegry
law of conservation of enegry
500
( fluid friction ) the fluid molecules moving out of the way
type of friction air resistance
500
- for every action, there is an equal and opposite reaction
- demonstrated when stepping forward off of a boat, causes the boat to push backwards
newtons 3rd law: action/reaction
500
opposes the flow of electrons.measured in ohms. more resistance = less current
condutors have a low resistance
insulators have a high resistance
resistance
500
a soucre of constant electric current - direct current (DC) - current in one direction
batteries
500
the amount of matter in an object
Weight- the force on an object duc to gravity