click below
click below
Normal Size Small Size show me how
1st semester voc
Question | Answer |
---|---|
Balanced Force | A balanced force is when two equal forces are applied on an object pushing both ways. Also they are equal forces acting on an object in opposite directions |
Unbalanced Force | Unbalanced forces: Forces that produce a non-zero net force, which changes an object's motion. |
Groups | number of valence electrons |
Physical Change | are changes affecting the form of a chemical substance, but do not change the chemical composition of that substance. |
Atom | is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons |
Chemical Equations | consists of the chemical formulas of the reactants (the starting substances) and the chemical formula of the products (substances formed in the chemical reaction). |
Speed | The rate or a measure of the rate in motin |
Newton's first law | If an object experiences no net force, then its velocity is constant: the object is either at rest (if its velocity is zero), or it moves in a straight line with constant speed (if its velocity is nonzero). |
Rows | period |
Acceleration | is the rate at which the velocity of a body changes with time |
Density | p=m/v |
Flask | laboratory glassware for holding larger volumes than simple test tubes |
test tube | also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top, usually with a rounded U-shaped bottom |
goggles | safety glasses are forms of protective eyewear that usually enclose or protect the area surrounding the eye in order to prevent particulates, water or chemicals from striking the eyes |
triple beam balance | measures grams |
velocity | rapidity of motion |
force | a push or pull |
newton | unit of force equal to the force needed to accelerate 1kg or 1m per sec. |
direction | the act or function of directing |
thrust | strong push that quickly moves an object |