Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| process of comparing to a unit |
|
|
Term
|
Definition
|
|
Term
|
Definition
1. comparing unit to property
2. following a procedure which specifies how the comparison is made
3. counting how many standard units describe the property |
|
|
Term
|
Definition
decided upon units
ex: metric/english system |
|
|
Term
|
Definition
| distance from head to finger tip |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Inch, foot. most are reference from the human body |
|
|
Term
|
Definition
| established by french academy, uses centimeter, meter. |
|
|
Term
|
Definition
| international system of units |
|
|
Term
|
Definition
Cannot be defined in simpler terms that what is it measure as.
EX: length, mass, time, charge |
|
|
Term
|
Definition
standard unit for length in metric system
defined as distance that light travels in a vaccuum during a certain time period |
|
|
Term
|
Definition
standard unit for mass in metric system
defined as the inertia of an object |
|
|
Term
|
Definition
| standard unit of time in metric system |
|
|
Term
|
Definition
| 10 millimeters, centimeter, decimeter, meter |
|
|
Term
|
Definition
| can be used to describe objects, conditions, events, or changes that might be occuring. |
|
|
Term
|
Definition
| size of an object. (how much space something occupies) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| relationship between two numbers that is obtained by dividing an object |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| quanities on one side are set equal to the other side |
|
|
Term
|
Definition
| refers to a specific quanitity of an object or event that can have different values. |
|
|
Term
|
Definition
| an increase or decrease in one variable results in the same relative increase or decrease in a second variable |
|
|
Term
|
Definition
| one variable decreases while the other increases |
|
|
Term
|
Definition
| sometimes given the symbol k, can be a numerical constant |
|
|
Term
|
Definition
| circumference/diameter of a circle |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a recreation of an event or occurance in a way that enables a scientist to prove or disprove a hypothesis |
|
|
Term
|
Definition
| compares two situations in which all the influencing factors are identical except one. |
|
|
Term
|
Definition
| the situation used as the basis of comparison |
|
|
Term
|
Definition
| the single influencing factor that is allowed to be different in the experiemental group |
|
|
Term
|
Definition
| (means false) is not science but uses the appearance or language of science to mislead people into thinking that something has scientific validity |
|
|
Term
|
Definition
| describes an important relationship that is observed in nature to occur consistently time after time. |
|
|
Term
|
Definition
| describes a more specific set of relationships than is usually identified in a law. |
|
|
Term
|
Definition
| is a description of a theory or idea that that accounts for all known properties |
|
|
Term
|
Definition
| a broad working hypothesis that is based on extensive experimental evidence. ex: a scientific theory tells you why something happens. |
|
|
Term
|
Definition
| based off referents found in nature |
|
|
Term
|
Definition
| 300 years ago during the time of galileo and newton |
|
|
Term
|
Definition
| develops when a hypothesis is proved |
|
|
Term
| important aspects of motion |
|
Definition
| 1) a change or position 2) the passage of time |
|
|
Term
|
Definition
| described by using combinations of the fundamental properties of length and time |
|
|
Term
|
Definition
| speed, velocity, and acceleration |
|
|
Term
|
Definition
|
|
Term
|
Definition
| equal distance per equal unit of time |
|
|
Term
|
Definition
| spped at any given moment |
|
|
Term
|
Definition
| average distance/average time |
|
|
Term
|
Definition
| change in velocity/time elapsed |
|
|
Term
|
Definition
| speed and direction of an object in motion |
|
|
Term
|
Definition
| push or pull that is acting on an object |
|
|
Term
|
Definition
| sum of all of the forces acting on an object |
|
|
Term
|
Definition
| gravitational, electromagnetic, weak, strong |
|
|
Term
|
Definition
| the tendency of an object to remain in unchanging motion whether actually at rest or moving in the the absence of an unbalanced force |
|
|
Term
|
Definition
| objects fall towards the earth with out air resistance |
|
|
Term
|
Definition
| horizontal, straight line motion and the vertical motion of dropped objects that accelerate toward the surface of the earth |
|
|
Term
|
Definition
| 1) the objects have inertia, a tendency to resist a change in motion 2) that forces are inloved in a charge of motion |
|
|
Term
|
Definition
| every object retains its state of rest or its state of uniform in straight-line motion unnless acted upon by an unbalanced force |
|
|
Term
| Newton's 2nd law of motion |
|
Definition
| the acceleration of an object is directly proportional to the net force action on it and inversely proportional to the mass of an object. |
|
|
Term
|
Definition
| the property that determines how much an object resists a change in it's motion |
|
|
Term
| Newton's third law of motion |
|
Definition
| whenever two objects interact, the force exerted on one object is equal in size and opposite in direction to the force exerted on the other object. |
|
|
Term
|
Definition
| the product of mass (M) of an object and its velocity (V) momentum=mass x velocity |
|
|
Term
|
Definition
| force and time of application |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| newton's law of gravitation |
|
Definition
| every object in the universe is attrracted to every other with a force that is directly proportional to the product of their masses and inversely proportion to the square of the distances between them |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| (newton meter) unit of work |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| (energy of motion)=1/2mass*velocity |
|
|
Term
|
Definition
| form of energy of familiar objects and machines |
|
|
Term
|
Definition
| form of energy involved in chemical reations |
|
|
Term
|
Definition
| energy that travels through space |
|
|
Term
|
Definition
| energy from electromagnetic interactions |
|
|
Term
|
Definition
| energy source in power plants |
|
|
Term
| law of conservation energy |
|
Definition
| energy is never created or destroyed. energy can be converted from one to another form, but the energy remains constant |
|
|
