, 1) CELSIUS ·
SIGNIFICANT FIGURES METRIC BSI PREFixeS
= 5/9
02 (oF 32) x -
1) all nonzero digits are significant ·KILO-K-1000-103
2) FAHRENHEIT 2) all zeros between digits are signifant deci-d-0.1-10-1
e
·Mili =↳=0.00
9/5 32
OF Cox
=
+
3)leading zeros are not significant
3) KELVIN 4) Trailing zeros are significant when the 0.0000001-18
9
k 0+273.15 measurementcontains a decimal
-
=
10
Exactvs. measures? coversion factors example:
exact numbers have no 1) Ifa person weighs 4 lb, what
IS
uncertaint,infinite number the body mass in kilograms?
of significantdigits. 2) A doctors order prescribed a
example:counteditems/defined. 164(b x149 74.5kg
=
dosage of0.150 mg ofSynthrold.
measures numbers have ... 2.20 ID Iftablets stuck
in contain 75MCG
numenc value ofsynthrold,how many tablets are
UniS
3SF 3SF 3SF provide
required to the prescribed Med
3) Uncertainty
Itablein
0.150mg x
umca,Iable=
3) John HOOK 1.0 tsp of lough
symp. If the syrup had a
density of 1.2091m2 isthere is
5.0mL In is themass?
Itsp.What
4) an unknown Ilould has a density
of1.3291m,whatis the volume
ofa sample 14.7 gsample of12.
2.0+spxEmLx 9:1295.
itsp ImL
1mL 11.1m2L1q.
14.7g x
=
1.329
-UnsForEnYoule(J)
SPECIFIC HEAT: HEAT EQUATION
the amount of heat thatraises the
temperature of exactly 19 of a substance HEAT:MASSX TX SPECIFIC HEAT
I Ca1 4.1845 1 calorie =1kcal
=
by exactly loc
How many calories are obtained HEAT CalCor5)
=
from a pat ofbutter IfItprovides SPECIFIC HEAT (SH): T
grams - 9C
ofenergy whenmetabolized?
1505
1500 1 36(al
x =
SH FOU H20: M=
K. 184J
SH Examples: HEAT
1) Whatis the specific Heatif TXSHSH=
HEAT=MX my T
24.8g of metal absorbs 2755
2.65
2755
ofenergy the temperature
=
rises
24.8g x 4.3
SH=
24.5C:
from 20.2°C to
T 24.520 = -
20.2C
T 4.3c =
SIGNIFICANT FIGURES METRIC BSI PREFixeS
= 5/9
02 (oF 32) x -
1) all nonzero digits are significant ·KILO-K-1000-103
2) FAHRENHEIT 2) all zeros between digits are signifant deci-d-0.1-10-1
e
·Mili =↳=0.00
9/5 32
OF Cox
=
+
3)leading zeros are not significant
3) KELVIN 4) Trailing zeros are significant when the 0.0000001-18
9
k 0+273.15 measurementcontains a decimal
-
=
10
Exactvs. measures? coversion factors example:
exact numbers have no 1) Ifa person weighs 4 lb, what
IS
uncertaint,infinite number the body mass in kilograms?
of significantdigits. 2) A doctors order prescribed a
example:counteditems/defined. 164(b x149 74.5kg
=
dosage of0.150 mg ofSynthrold.
measures numbers have ... 2.20 ID Iftablets stuck
in contain 75MCG
numenc value ofsynthrold,how many tablets are
UniS
3SF 3SF 3SF provide
required to the prescribed Med
3) Uncertainty
Itablein
0.150mg x
umca,Iable=
3) John HOOK 1.0 tsp of lough
symp. If the syrup had a
density of 1.2091m2 isthere is
5.0mL In is themass?
Itsp.What
4) an unknown Ilould has a density
of1.3291m,whatis the volume
ofa sample 14.7 gsample of12.
2.0+spxEmLx 9:1295.
itsp ImL
1mL 11.1m2L1q.
14.7g x
=
1.329
-UnsForEnYoule(J)
SPECIFIC HEAT: HEAT EQUATION
the amount of heat thatraises the
temperature of exactly 19 of a substance HEAT:MASSX TX SPECIFIC HEAT
I Ca1 4.1845 1 calorie =1kcal
=
by exactly loc
How many calories are obtained HEAT CalCor5)
=
from a pat ofbutter IfItprovides SPECIFIC HEAT (SH): T
grams - 9C
ofenergy whenmetabolized?
1505
1500 1 36(al
x =
SH FOU H20: M=
K. 184J
SH Examples: HEAT
1) Whatis the specific Heatif TXSHSH=
HEAT=MX my T
24.8g of metal absorbs 2755
2.65
2755
ofenergy the temperature
=
rises
24.8g x 4.3
SH=
24.5C:
from 20.2°C to
T 24.520 = -
20.2C
T 4.3c =
