Objects such as metals, which do not easily store charges.
What are electrical conductors?
100
The point in the Northern Hemisphere where the Earth’s magnetic field lines are most concentrated and nearly vertical as they pass into the Earth’s interior.
What is the magnetic north pole?
100
This is the splitting of a large nucleus into smaller nuclei and several free neutrons.
What is nuclear fission?
100
Elements can be categorized into these three broad groupings.
What are metals, nonmetals, and metalloids?
100
The loads are connected in separate branches of a circuit; the current flows through more than one path, splitting up to flow through each load.
What is a parallel circuit?
200
Current that flows in one direction through a conductor.
What is direct current (DC)?
200
This converts rotational mechanical energy into electrical energy.
What is a generator?
200
The number of protons in the nucleus of an atom, which determines the element identity of the atom.
What is the atomic number (Z)?
200
An element in group 1A of the periodic table.
What is an alkali metal?
200
A neutral molecule whose electrons have shifted to form positive and negative ends.
What is a dipole?
300
An early form of capacitor consisting of a glass jar with layers of metal foil on the outside and inside.
What is a Leyden jar?
300
An electrical device that uses electromagnetic induction to raise or lower the available voltage to the voltage required by an AC circuit.
What is a transformer?
300
Atoms are generally most stable when they have a full set of electrons in their outer energy level.
What is the octet rule?
300
An element in group 7A of the periodic table.
What is the halogen family?
300
These have no electrical charge and consist of EM waves.
What are gamma rays?
400
A switch that is manually closed but that automatically trips open if the current flowing through it exceeds a set value.
What is a circuit breaker?
400
A coil of wire that acts like a magnet when carrying a current.
What is a solenoid?
400
Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons.
What are isotopes?
400
This number tells where the valence electrons are and gives a general idea of how far from the nucleus they reside.
What is the period?
400
An element in group 3A of the periodic table.
What is the boron family?
500
Ohm’s Law.
What is V = I x R, voltage = current x resistance?
500
A solenoid that contains a ferromagnetic core; the core greatly increases the field strength of the solenoid.
What is an electromagnet?
500
These are composed of two protons and two neutrons, the same composition as helium nuclei.
What are alpha particles?
500
The only elements that exist naturally in this form are helium, neon, argon, krypton, xenon, & radon (the noble gases).
What are monatomic elements?
500
The phenomenon observed in materials that are highly permeable to magnetic lines of force because their magnetic domains align with the field, reinforcing it.