Periodic Table
The number placed in front of a compound to balance a chemical reaction.
Coefficient
In any chemical process, matter is neither lost nor gained.
Conservation Of Matter
This is a change in velocity per time.
Acceleration
In a transverse wave, this is the magnitude of height of a wave from origin to crest. In a longitudinal wave, this is corresponds to how much the wave is compressed, as compared to areas of little compression.
Amplitude
The electrostatic attraction that binds oppositely charged ions together.
Ionic Bond
One of a class of elements having properties intermediate to metals and nonmetals.
Metalloid
The phase of matter where particles at extremely high temperatures become ionized.
Plasma
These are equal and opposite forces that do not cause a change in position or motion.
Balanced Forces
This is a spreading out of a wave around corners or through holes.
Diffraction
This is a force which resists all motion.
Friction
This is a property of matter that can be identified without changing the identity of the substance.
Physical Property
The process in which nuclei with small masses are combined to form a nucleus with a larger mass.
Fusion
This says the acceleration of an object increases by the force applied to it, and decreases based on its mass.
Newton's Second Law
Also called a longitudinal wave, they are waves whose direction of vibration is the same as their direction of travel. They produce compression and rarefaction when traveling through a medium.
Compression Wave
For every action, there is an equal and opposite reaction.
Newton's Third Law
A compound composed of two oppositely charged elements.
Binary Ionic Compound
Positively-charged particles consisting of two protons and two neutrons emitted by radioactive materials.
Alpha Particle
The process of changing the energy of a system by means of forces. Force x Distance
Work
This is the high or low tone or frequency in which a speech is made.
Pitch
This is heat or electrical transfer by contact.
Conduction
These are the highly reactive elements located in Group 1 of the periodic table. These elements have one electron in their outer energy level which makes them highly reactive with water and halogens.
Alkali Metals
Process in which ionic compounds separate or split into smaller molecules or ions.
Dissociation
This is a simple machine composed of a bar that is free to pivot around a fixed point, called the fulcrum. There are three classes of these; the class is based on the position of the effort force, fulcrum, and resistance force.
Lever
This is the angle that light strikes a surface relative to the normal, or an imaginary line perpendicular to the surface. The law of reflection states that this angle is equal to the angle of reflection.
Angle Of Incidence
The energy stored within the nucleus of an atom; energy released from a fission or fusion reaction.
Nuclear Energy