Measurement Experiments
Science 210
Name:________________________________________________________________
1. Height measurement:
a) Measure your lab partner’s height in inches to the nearest 1/16th of an inch. Express your answer as a decimal:
Height = _________________________________________
b) Repeat a), but now measure your partner’s height in centimeters, to the nearest millimeter. Write your answer on the board in front of the class.
Height = ________________________________________
c) Divide the value for part b) by the value for part a). Write your answer on the board in front of the class.
Ratio = __________________________________________
d) From the values listed on the board, find the average height of the students in the laboratory class.
Average height = _______________________________________
2. Area measurement:
a) Find the area of the floor in our laboratory room in units of ft2. (Hint: each tile is 9 inches by 9 inches). Write your answer on the board.
Area of room = _________________________________
b) Find the area of the lab room floor in units of M2.
Area of room = ___________________________________
c) If the cost of carpet is $35 per square yard, how much will it cost to carpet the lab room?
Cost = _____________________________________________
3. Speed measurement
a) In the hallway, measure the walking speed of your partner in units of ft/sec. (Hint: the tiles are one foot by one foot). Write your answer on the board in front of the class.
Speed = ___________________________________________
b) What is your partners walking speed in units of miles/hr?
Speed = ___________________________________________
c) How many days will it take her or him to walk to San Francisco?
Time = ______________________________________________
4. Mass measurement
In class there is a bag of M&M’s. Your goal is to estimate how many M&M’s are in the bag. You will be given a balance, a bag and some M&M’s to assist you. The group that gets the closest gets to keep the M&M’s.
Show your work here:
5. Volume measurement:
a) Measure the volume of the laboratory room in units of ft3. Write your answer on the board in front of the class.
Volume = ________________________________________
b) Find the volume of the laboratory room in units of gallons, and in units of liters.
Volume = ____________________gallons = ________________________liters
c) What is the mass of the air in the laboratory room in units of Kg? (Hint: the density of air is 1.29 grams per liter)
Mass = _________________________________
d) How many air molecules are in the laboratory room?
Number of molecules = _____________________________
e) How many pounds does the air in the room weigh?
Weight of air = _______________________________________
Some Conversion Factors:
Distance to San Francisco = 450 miles
3 feet = 1 yard 1 meter = 3.281 ft 1 mile= 5280 ft
1 ft3 = 28.32 liters 1 gallon = 3.8 liters 1000 grams = 1 Kg
22.4 liters of air at standard temperature and pressure contains 6.02 x 1023 molecules
a mass of 1 Kg weighs 2.2 pounds on earth