Electricity and magnets
invisible forces that surround charged objects and push or pull other charges.
(ex: Rubbing a balloon against your hair.)
What is Electric Field?
an electric current flowing in one direction only.
(ex: Batteries!)
What is Direct Current?
a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.
(ex: Step up & Step Down.
a material that does not allow electric current to flow freely.
(ex: Rubber)
What is an Insulator?
the amount of energy transferred or converted per unit time.
(ex: involved in moving a ground vehicle)
What is Power?
a region around a magnetic material or a moving electric charge within which the force of magnetism acts. (ex: It's around the earth!)
What is Magnetic Field?
a type of electrical current that periodically reverses direction.
(ex: Household electricity)
What is Alternating Current?
the total effect of all resistors in the circuit.
(ex: Rt)
What is Equivalent Resistance?
allows the flow of electricity in one or more directions.
(ex: Copper)
What is a Conductor?
A parallel circuit is a way of connecting components on separate branches.
(ex: light fixtures)
What is a Parallel Circuit?
each of the points near the extremities of the axis of rotation of the earth or another celestial body where a magnetic needle dips vertically.
(ex: North & South!)
What are Magnetic poles?
electronic appliance that converts mechanical energy into electrical energy.
(ex: Used when the power goes out.)
What is a Generator?
two-terminal electrical component that implements electrical resistance as a circuit element.
(ex: Measured in OHMS)
What is a Resistor
the production of an electromotive force (emf) across an electrical conductor in a changing magnetic field.
(ex: Generator)
What is Induction?
a circuit in which the current has only one path.
(ex: battery and two lightbulbs)
What is a Series Circuit?
a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
(ex: Lifting Magnet!)
What is Electromagnet?
an electrical machine that converts electrical energy into mechanical energy.
(ex: Electromagnetism)
What is a Motor?
Unit of Electrical resistance
(ex: _ _ _'s Law)
what is OHM
is the unit of electric current in the International System of Units.
(ex: Unit = A)
What is Ampere?
the production of an electromotive force (emf) across an electrical conductor in a changing magnetic field.
What is electromagnetic induction?
the difference of electrical potential between two points.
What is Potential Difference?
difference in electric potential between two points
(ex: Unit = V)
What is Voltage?
the electric potential between two points of a conducting wire.
(ex: Root word of _ _ _ _ age)
What is a Volt?