Lab Safety and SI System
Similar to imperial miles, these are a common unit of metric distance
What are kilometers?
This element is the most common in the universe, and only has one proton
What is Hydrogen?
This particle has a positive charge and is found in the nucleus
What is a proton?
This is anything that reduces energy transfer. A vacuum is the best at this
What is an insulator?
This is the force that resists motion when the surface of one object comes in contact with the surface of another. Results in thermal energy
What is friction?
These are the base metric units used for measuring distance and mass
What are meters and grams?
The gaseous elements down the far right column of the periodic table, famous for not reacting with other elements
What are noble gases?
An example of this kind of change would be wood burning, or mixing vinegar and baking soda
What is chemical change?
This law states that energy cannot be created or destroyed, only changed
What is the law of conservation of mass?
This is where an object started and where it ended, regardless of the path it took. Commonly measured in m or km
What is displacement?
This is the degree of compactness or consistency of a substance, measured in mass per unit volume
What is density?
A version of an element that has the same atomic number but a different number of neutrons
What is an isotope?
This number determines the identity of an element
What is the atomic number?
The energy of motion, and the energy of something based on its position.
What are kinetic and potential energy?
This is the slope of a velocity time graph, commonly measured in m/s^2
What is acceleration?
The act of adding water or another "safe" liquid to a substance to safely dispose of it
What is dilution?
These types of elements are metals found in the central block of the periodic table, commonly denoted with roman numberals.
What are transition metals?
The two kinds of bonds seen in chemistry; one between two nonmetals, and one between a metal and a nonmetal
What are covalent and ionic bonds?
This is the transfer of energy through a fluid (meaning liquid or gas)
What is convection?
The equation of this term is (df-di)/t, or displacement divided by time
What is velocity?
These two units are used to measure liquid and solid volumes
What are liters (L) and cubic centimeters (cm3)?
A kind of ion that contains more than one atom. End in “ate” or “ite” with the exception of “hydroxide” and “cyanide.” An example would be "phosphate."
What is a polyatomic ion?
Electrons in the outer shell of an atom that are responsible for the chemical properties of the atom
What are valence electrons?
These are the units used for energy
What are Joules (J)?
This is the value of acceleration due to gravity close to Earth’s surface
What is 9.8 m/s^2?