PSB7
What is a conductor?
(the material, not the train kind)
A material that allows heat and electricity to pass through it.
What is convection?
The transfer of heat by the movement of a fluid.
What is the law of conservation of mass?
Matter is not created nor destroyed in any chemical or physical change.
The atomic number is?
The number of protons in the nucleus of an atom.
What is a magnetic field?
The area of magnetic force around a magnet.
The joule is a?
Unit of energy
What does it mean to be neutral?
not favor either side.
Bohr made the?
planetary model of the atom.
What does it mean to repel something?
To push it away.
What is thermal expansion?
The expansion of matter when heated.
What is a coefficient in a chemical formula?
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
Who was Democritus?
A Greek philosopher who theorized that all matter could be reduced to particles that could not be divided, which he described as "atomos."
What is a series circuit?
A circuit in which all parts are connected end to end to provide a single path of current.
What is the Law of Conservation of Energy?
It's the law that states that energy cannot be created or destroyed but can be changed from one form to another.
What is a catalyst?
Substance that speeds up the rate of a chemical change.
What is alpha radiation
Radiation that is made up of alpha particles.
What is a magnet?
(Specifically, what metal does it attract?)
any material that attracts iron and materials that contain iron.
potential energy equation
U=mgh
A neutralization reaction is what?
a reaction in which an acid and a base react in an aqueous solution to produce a salt and water.
What did Mendeleev make?
the periodic table