Module 2 - Measurement Flashcards
Imagine that Sarah gave you a sheet of paper with 2.7 L written on it. What type of measurement does this represent?
volume
0 ºC is the coldest possible temperature.
false
A measure of 9 nm is smaller than 9.2 m.
true
A micrometer is equal to how many meters?
10-6 m
On the Celsius scale, water freezes at 32°.
false
The length of a bacterium is usually measured in microns.
true
There are seven significant figures in 0.0893140 L.
false
Thermometers have no uncertainty.
false
How many significant figures are in the following measurement?
87.9340 g
6
Because they have tick marks, beakers can be used for measuring solutions accurately.
false
In the metric system, what is the basic unit of length?
m
When pouring from graduated cylinders, some volume is lost as liquid remains in the cylinder.
true
Conversion factors are used to determine the number of significant figures present in a calculated value.
false
7.38 x 105 is larger than 8.78 x 104.
true
16.9 mg is equivalent to __________ grams.
0.0169
Long distance runners normally track how far they run while training. What SI unit would be used to do this?
meters
Fahrenheit is to ______ as feet is to _______.
kelvin; meters
____ is the prefix that represents 1000 times greater than the base unit.
kilo
One-tenth can be identified as _____ or _____.
0.1; deci
How is the base number represented using exponential terms?
10^0
When traveling to a European country, one will most likely see the temperature displayed in Celsius. If it is 25°C in Paris, France, what would this temperature be in Fahrenheit?
77°F
Convert 19°C to Kelvin.
292.15k
To calculate Kelvin from Fahrenheit, one must convert to Celsius first.
true
Petrologists are scientists that study rocks. If a petrologist finds a rock with a mass of 86g and a volume of 10cm3, what is the rock’s density?
8.6g/cm3
Density can be represented in g/cm3 or g/mL.
true
Which set of numbers is most precise?
6.81, 6.7, 6.79, 6.72
The less significant figures, the greater precision.
false
If the desired measurement is 19.5 m, which measurement is most accurate?
19.475 m
The mass of an empty Boeing 737-800 airplane is about 41,145kg. Which of the following would be the best choice for recording this measurement in scientific notation?
4.11 x 104
If a person is 5 feet 8 inches tall, what is their approximate height in centimeters?
173cm
A standard bathtub can hold 302 liters of water. Which represents this measurement in quarts with the appropriate number of significant figures?
319qt
A school holds a contest where students guess how many gumballs are in a very large container in the gymnasium. The actual number of gumballs is 3.84 x 105. In standard notation, there are ______ gumballs.
384,000
A dog is weighed during a visit to the vet and is recorded at 25.8 pounds. Convert this weight into kilograms with the appropriate number of significant figures.
11.7kg
Converting from miles to inches generally includes the use of a single conversion factor.
false
A house sells for $492,200. This price can most accurately be represented in scientific notation as…
4.92 x 105
The meteorologist indicated that the temperature would reach a high of 86 °F. What is this temperature on the Celsius scale?
30 °C
A measurement reported as 0.001 grams could also be reported as 1…
mg
What is the density (rounded to the nearest whole number) of a gold sample that has a mass of 12.3 grams and a volume of 0.77 milliliters?
16 g/mL
If the volume of juice was measured using the metric system, what base unit would be reported?
L
Which of the following is equivalent to 1,000,000 g?
1 Mg
Based on the rules of significant figures, how should the following calculation be reported?
67.403 cm x 31.8 cm = ?
2140 cm2
Use the arrow to indicate the measurement that should be reported:
3.52 inches
Based on the rules of significant figures, how should the following calculation be reported?
274.13 g + 37.531 g + 49.2 g = ?
360.9 g
Round 0.013849 to three significant figures.
0.0138
Which measurement has the least amount of uncertainty?
3.123 L
What conversion factor would you use to calculate 39 grams to kilograms?
1 kg / 1000 g
How many milligrams are in 5.3 kilograms? Report your answer based on the rules of significant figures.
5.3 x 106
How many pounds are in 620.0 grams? Report your answer based on the rules of significant figures.
1.367 lb
What is the standard notation value of 7.221 x 10-4?
0.0007221
If your height is 66 inches, how many centimeters tall are you? Report your answer based on the rules of significant figures.
170 cm
