Fundamental and Derived Quantities of Physics

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The ones we need to know for Mr. Maddens H.Physics final.

Def of Postion

location on a coordinate system

SI unit of Position

meter (m)

Quantity Symbol of Position

x, y, or z

Defining eq'n of Position

x, y, or z

Def of Time

measure of motion

Quantity Symbol of Time

t

Defining eq'n of Time

t

SI unit of Time

second (s)

Def of Displacement

change in position

Quantity Symbol of Displacement

delta x, y, or z

Defining eq'n of Displacement

delta x = x - x-naught

SI unit of Displacement

meter (m)

Def of Velocity

Displacement per unit time

Quantity Symbol of Velocity

v

Defining eq'n of Velocity

delta x divided by delta t

SI unit of Velocity

meter per second (m/s)

Def of Acceleration

rate of change of velocity

Quantity Symbol of Acceleration

a

Defining eq'n of Acceleration

delta v divided by delta t

SI unit of Acceleration

meter per second squared (m/s^2)

Def of Mass

quantity of matter

Quantity Symbol of Mass

m

Defining eq'n of Mass

m

SI unit of Mass

kilogram (kg)

Def of Force

a push or a pull

Quantity Symbol of Force

F

Defining eq'n of Force

mass*acceleration

SI unit of Force

Newton (N) or (kg*m)/s^2

Def of Weight

force due to gravity

Quantity Symbol of Weight

W

Defining eq'n of Weight

mass*g (9.8 m/s^2)

SI unit of Weight

Newton (N) or (kg*m)/s^2

Def of Impulse

Force times the amount of time force acts

Quantity Symbol of Impulse

J

Defining eq'n of Impulse

Force*delta t

SI unit of Impulse

Newton-second (N-s) or (kg*m)/s

Def of Momentum

Mass of object times its velocity

Quantity Symbol of Momentum

p

Defining eq'n of Momentum

mass*velocity

SI unit of Momentum

kilogram-meter per second or (kg*m)/s

Def of Work

The amount of force applied to an object times the distance over which the force is applied

Quantity Symbol of Work

?

Defining eq'n of Work

Force*distance

SI unit of Work

Joule (N-m) or (kg*m^2)/s^2

Def of Energy

the ability to do work

Quantity Symbol of Energy

?

Defining eq'n of Energy

?

SI unit of Energy

Joule (N-m) or (kg*m^2)/s^2

Def of Power

rate of doing work

Quantity Symbol of Power

P

Defining eq'n of Power

work divided by t

SI unit of Power

Watt (joule/second) or (kg*m^2)/s^3

Def of Charge

Fundamental quantity of nature

Quantity Symbol of Charge

q

Defining eq'n of Charge

q

SI unit of Charge

Coulomb (C)

Def of Current

Rate of flow of charge

Quantity Symbol of Current

I

Defining eq'n of Current

charge divided by time

SI unit of Current

Ampere (coulomb per second) or C/s

Def of Voltage

Amount of work done per unit charge

Quantity Symbol of Voltage

V

Defining eq'n of Voltage

Work divided by charge

SI unit of Voltage

Volt (joule per coulomb) or (kgm^2)/(Cs^2)

Def of Resistance

the opposition of flow of charge

Quantity Symbol of Resistance

R

Defining eq'n of Resistance

voltage divided by current

SI unit of Resistance

Ohm or (kgm^2)/(C^2s)

Ohm

The amount of resistance that will allow one ampere of current to flow accross a potential difference (voltage) of one volt

Def of Capacitance

the ability to store charge

Quantity Symbol of Capacitance

C

Defining eq'n of Capacitance

Current divided by voltage

SI unit of Capacitance

Farad (Coulomb per volt) or (C^2s^2)/(kgm^2)

Def of Period

the time per one oscillation

Quantity Symbol of Period

T

Defining eq'n of Period

T

SI unit of Period

Second (s)

Def of Frequency

oscillations per time

Quantity Symbol of Frequency

f

Defining eq'n of Frequency

1/T

SI unit of Frequency

Hertz (one per second) or s^-1

If one joule of work is done when one coulomb of charge moves from point A to point B....

then the potential difference is one volt

SI unit of Temperature

Kelvin

SI unit of Quantity of Matter

Mole

SI unit of Intensity of Light

Candela

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