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23 Cards in this Set

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the calorie
is defined as the amount of energy required to raise the temperature of 1 g of water from 14.5C to 15.5C
Potential Energy
Stored energy
Kinetic Energy
the energy or motion
Measurement Units in Medicine
MASS
1 milligram(mg)= 1000micrograms (mcg
1 grain (gr)= 65 milligrams(mg)
VOLUME
1 cubic centimeter(cc or cm3)= 1 milliliter (mL)
15 drops(gtt)= 1 milliliter(mL)
1 teaspoon (tsp)= 5 milliliters (mL)
2 tablespoons(T or tbsp)= 1 ounce (oz)
1 mL=1x.001 L
Significant figures
Multiplication
Division
calculations should not change the degree of uncertainty in a value.
When doing multiplication or division with the measured values, the answer should have no more significant figures then any number used in the calculation.
Significant figures
Addition
when doing addition or subtraction with measured values, the answer should have the same number of decimal places as the quantity with the fewest decimal places
Scientific notation
an exponent with a positive value tells you how many times to multiply a number by 10
an exponent with a negative value tells you how many time to divide a number b 10
Temperature concersions
f=(1.8xc)+ 32
c=f-32/1.8
accuracy
is related to how close a measured value is to a true value
precision
is a measure of reproducibility
Measurement Units
1 kg= 2.205 lbs
1 kg= 100 g
1 m= 3.281 ft
0.946 L= 1 qt
1 m3= 1000L
4.184 J= 1 cal
F=(1.8xC) + 32
C= F-32/1.8
K=C + 273.15
exact numbers
have an unlimited number if significant figures
significant figures
those digits in a measurement that are reproducible when the measurementis repeated, plus the first doubtful digit
the scientific method
the process used to gatherand interpret information. observation is part of the process
laws
are statements that describe things that are consistently and reproducibily observed
hypothesis
a tentative explanation that is based on presently known facts.
theory
an experimentally tested explanation of an observed behavior
matter
is anything that has mass and occupies space
physical properties
characteristics that can be determined without changing the chemical composition of matter (what it is made of)
hypothesis
a tentative explanation that is based on presently known facts.
theory
an experimentally tested explanation of an observed behavior
matter
is anything that has mass and occupies space
physical properties
characteristics that can be determined without changing the chemical composition of matter (what it is made of)