Physics Flashcards by Katie Kyles

Q

length (CGS)

A

centimeter (cm)

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Q

mass (CGS)

A

gram (g)

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Q

force (CGS)

A

dyne (dyn)

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Q

time (CGS)

A

second (s)

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Q

work and energy (CGS)

A

erg

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Q

power (CGS)

A

erg/second

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Q

length (SI)

A

meter (m)

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Q

mass (SI)

A

kilogram (kg)

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Q

force (SI)

A

newton (N)

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Q

work and energy (SI)

A

joule (J)

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Q

power (SI)

A

watt (W)

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Q

length (FPS)

A

foot (ft)

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Q

mass (FPS)

A

slug (sl)

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Q

force (FPS)

A

pound (lb)

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Q

time (FPS)

A

second (s)

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Q

work and energy (FPS)

A

foot-pound (ft* lb)

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Q

power (FPS)

A

foot-pound/sec

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Q

engstrom value

A

1 A= 10^-10 m

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Q

nanometer

A

10^-9 m

Q

electronic volt (eV)

A

1.6 x 10^-19 V

Q

10^9

A

giga G (or B)

Q

10^6

A

mega (M)

Q

10^3

A

kilo (k)

Q

10^-2

A

centi (c)

Q

10^-3

A

milli (m)

Q

10^-6

A

micro

Q

10^-9

A

nano (n)

Q

10^-12

A

pico (p)

Q

what is the mantissa in:

123= 1.23 x 10^2

A

1.23

Q

what is the exponent in:

123= 1.23 x 10^2

A

2

Q

sin (theda)

A

y/h or opp/hypotenuse

Q

cos (theda)

A

x/h or adjacent/hypotenuse

Q

tan (theda)

A

y/x or opp/adjacent

Q

scalars

A

numerical quantities that have magnitude but no direction

Q

vectors

A

quantities with magnitude and direction

Q

vector quantity notation

A

boldface or arrow

Q

resultant

A

the sum of 2 or more vectors

Q

displacement

A

aka delta x

- the change in position of an object

Q

average velocity

A

v= delta v/ delta t

Q

instantaneous velocity

A

velocity at a single instant of time

v= lim (x–> 0) delta x/ delta t

Q

average speed

A

s= d/t

Q

acceleration

A

rate of change of an object’s velocity

a= delta v/ delta t

Q

instantaneous velocity

A

a= lim (x–> 0) delta v/ delta t

Q

acceleration due to gravity

A

9.8 m/s^2

Q

what type of quantity is acceleration?

A

vector

Q

what time of quantity is velocity?

A

vector