Measurement Experiments

Science 210

 

Name:________________________________________________________________

 

1.Height measurement:

 

a)      Measure your lab partnerís 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 partnerís 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&Mís.Your goal is to estimate how many M&Mís are in the bag.You will be given a balance, a bag and some M&Mís to assist you.The group that gets the closest gets to keep the M&Mís.

 

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