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49 Cards in this Set
 Front
 Back
Accuracy

freedom from miskate or error


Precision

the degree of refinement with which an operation is performed


Meter (m)

the SI unit of length


Significant Digits

the number of digits in a measurement or calculation which reflect the accuracy of the measurement


Kilogram (kg)

the SI unit of mass


Cubic Meter (m^3)

the SI unit of volume


Liter (L)

the SI unit of liquid volume


Density

mass divided by volume (grams/cm^3)


Specific Gravity

Density of an object divided by the density of water. In the metric system the value of specific gravity is the same as density without units.


Vernier Caliper

an instrument for measuring dimensions with high precision


Speed

the distance an object travels per unit time


Velocity

the speed of an object in a specific direction


Average Velocity

the distance the object moved divided by the time interval


Instantaneous Velocity

the speed at which an object is moving at any given instance


Acceleration

the change in velocity divided by the interval of time in which the change occurs.


Acceleration Due to Gravity (g)

constant acceleration of all freely falling bodies that are close to the earth


Period

the time to complete one vibration


Mass

the amount of matter in an object. Mass does not vary with location.


Weight

the gravitational force on an object. Weight varies with location


Newton

the SI unit of force


Slope of a line

tell how much it is inclined to the horizontal axis. The slope of the line of a graph is found by taking any two points on the line and dividing the rise by the run.


Elastic Body

a body that changes in size or shape upon the application of a distorting force but returns to its original condition upon the removal of that force


Elastic Limit

the greatest distortion a body can undergo and still return to its original shape


Hooke's Law

Within the elastic limit of a substance, the restoring force is proportional to the amount of displacement.
F=kd 

Spring Constant

the constant of proportionality in Hooke's Law equation


Restoring Force

a force produced in a body which is equal and opposite to the applied force


Simple Harmonic Motion

A motion in which the acceleration and the resoring force are at all times proportional to the displacement of a vibration body form the position of equilibrium and are directed towared the point.


Amplitude

the maximum distance that the vibrating body moves from its position of equilibruim (rest)


Displacement

the distance of the body from its position of equilibruim (rest) at any instant


Period

the time to complete one vibration


Heat

the energy that flows as a result of a temperature difference


Specific Heat of a Substance (c)

the amount of heat required to raise the temperature of one gram of any substance by one degree Celsius.


Calorie

the amount of heat required to raise the temperature of one gram of water by one degree Celsius


Latent Heat of Fusion of Water

the amount of heat required to melt one gram of ice at 0 degrees Celsius into one gram of water at 0 degree Celsius


Latent Heat of Vaporization of water

the amount of heat required to change one gram of water at 100 degree Celsius to one gram of steam at 100 degree Celsius


Law of conservation of heat energy

when heat is transferred from one substance to another, the heat lost from the one substance equals the heat gained by the other


Calorimeter

the inner aluminum can in the calorimeter apparatus in which heat exchange takes place


Phase Change

change of state from solid to liquid or from liquid to vapor


Electric Change (Q)

the amount of electricity an object contains


Coulomb (C)

the SI unit of Charge


Electric Current (I)

the rate at which electric change flows through a wire


Ampere

the SI unit of current


Potential Difference or Voltage

the electrical work required to move a unit positive charge from point A to point B


Volt (v)

the SI unit of potential difference/voltage


Resistance (R) of a conductor

the opposition the conduction gives to the flow of current through it


Ohm

the SI unit of resistance


Power (p)

the rate at which work is done


Watt

the SI unit of power


Joule

the SI unit of energy
