The Structure of Matter
Work and Machines
Bonding and Compounds
Matter
The Atom
100
Fundamental unit of length in the SI.
What is the meter?
100
The rate of doing work.
What is power?
100
An electrostatic attraction that forms bettween atoms when they share or transfer valence electrons.
What is a chemical bond?
100
Anything that occupies space and has mass.
What is matter?
100
Spherical regions located at fixed distances from the nucleus.
What are Energy levels?
200
Fundamental unit of mass in the SI.
What is the kilogram?
200
Basic mechanical devices that change the magnitude,direction, or distance traveled of the force used when doing work.
What are simple machines?
200
Atoms are generally most stable when they have full eight electrons in their valence energy level.
What is the octet rule?
200
Material made of only one kind of element.
What is a pure substance?
200
DAILY DOUBLE
Atoms do not travel randomly.
What is the Bohr Model?
300
A system of moral values or theory of proper conduct.
What is Ethics?
300
The measure of the change in input needed to do a certain amount of work when using a simple machine.
What is the mechanical advantage?
300
Molecules made of two atoms.
What are diatomic molecules?
300
Anything about a substance that can be observed or measured without altering the substance's chemical composition.
What is a physical property?
300
Carries no electrical charge.
What is the Neutron?
400
A model that explains a related set of phenomena.
What is a theory?
400
Effectiveness of a machine or process at converting energy from one form to another.
What is efficiency?
400
The name we use for unequal distribution of electric charge.
What is polarity?
400
A substance changes in the presence of another substance.
What is a chemical property?
400
The unique number of protons in the atoms of each element.
What is Atomic Number?
500
The degree of exactness of the measurements.
What is precision?
500
DAILY DOUBLE
A simple machine, rigid bar that turns around a pivot point, the point it turns at is called the fulcrum.
What is a lever?
500
Bonds sharing two pairs of electrons.
What is a double covalent bond?
500
Matter can neither be created nor destroyed, but only change forms.
What does the Law of Conservation of Matter state?
500
Atoms of the same element but differing numbers of neutrons.
What are Isotopes?