Vocabulary: A quantity that has both a number and a unit.
Measurement
100
What is the the SI base unit for mass?
Kilogram (kg)
100
Vocabulary: A ratio of equivalent measurements used to covert between different units of measurement.
Conversion Factor
100
What is the formula for density?
D=M/V
100
Why did the mass of a penny change in 1982?
The material was changed from mostly copper to mostly zinc.
200
Write the following number in scientific notation:
1,540,000
1.54 X 10^6
200
What metric prefix means "1000 times smaller than the unit it precedes?"
milli (m)
200
Vocabulary: A way to analyze and solve problems using the units, or dimensions, of the measurements.
Dimensional Analysis
200
What is the formula for mass in terms of density and volume?
M=D X V
200
What does a can of diet pepsi float, but a can of regular pepsi sink? Answer in terms of density.
The density of diet pepsi is less than water, but the density of regular pepsi is more than water.
300
Write the following number in scientific notation:
.000932
9.32 X 10^-4
300
Vocabulary: The method of finding the volume of an object by immersing it in water.
Water Displacement
300
Using the following information, convert 25.3 meters into millimeters.
1000mm = 1 m
25,300 mm
300
What is the volume of an object with a density of 3g/ml and a mass of 30 g?
10 ml
300
Why is it normally hotter on the third floor of a building compared to the first floor? Answer in terms of density.
Hot air is less dense than cold air and floats on top of it.
400
Vocabulary: A measure of how close a measurement comes to the actual or true value of whatever is measured.
Accuracy
400
Vocabulary: A force that measures the pull of a given mass by gravity.
Weight
400
The directions for an experiment ask each student to measure 2 grams of copper (Cu) wire. The only copper wire available is a spool with a mass of 48 grams. How many students can do the experiment before the copper runs out?
24 students
400
As the temperature of an object increases, what (normally) happens its density?
It decreases.
400
In the penny lab, what was the manipulated variable?
Year of Penny
500
Given the following information, calculate the percent error of the measurement.
Experimental Measurement: 99.1 K
Actual Measurement : 100 K
0.9%
500
Convert 20 degrees Celcius to Kelvin.
293 K
500
Using the following information, convert 1200 kg into milligrams.
1000 g=1 kg
1000 mg= 1 g
1,200,000,000 or 1.2 billion or 1.2 X 10^9 milligrams
500
A mass of copper has a density of 9 g/ml. It is then cut into three UNEQUAL pieces. What is the density of the smallest piece?
9 g/ml. Density is an intensive property, which means it does not depend of the size of the object.
500
A 11 pound bowling ball has a mass of 5000g and a volume of 5447 milliliters. Will it float or sink in water?