Unit 1 Chemistry Test

Identify the three base units of the SI System.

• Miles, feet, inches
• Feet, Pounds, Gallons
• Milliliters, centimeters, kilograms
• Liters, Grams, Meters

SI stand for...

• Units of Silly Importance
• Units of Super Importance
• Systeme International (French for International System)
• Students Incorporated

Identify another name for the SI System.

• English System
• Metric System
• Imperial System
• System of a Down

Identify the best reason the metric system is used in science.

• There is no reason
• Because it is used internationally, and data can be shared and understood from country to country
• Because it's science-y

__________ is how close a measurement is to the true value and __________ is being able to replicate the measurement.

• Accuracy, Precision
• Accuracy, Accuracy
• Precision, Precision
• Precision, Accuracy

A student uses an electronic scale to record the mass (in grams) of an object 3 separate times. Identify the best conclusion for the measurements taken by the student.

-The actual mass of the object is 10.00 grams.

1) The first measurement gives a mass of 10.01 grams.

2) A second measurement gives a mass of 9.99 grams

3) A third measurement gives a mass of 10.00 grams.

• neither precise or accurate
• precise but not accurate
• accurate but not precise
• both precise and accurate

Identify the piece of equipment that is the most accurate for measuring volume.

• 
• 
• 
• 

When taking a measurement for a liquid using a graduated cylinder, Identify the most accurate way of recording your measurement.

• The bottom of the meniscus curve
• The top of the meniscus curve
• The average of the top and bottom of the meniscus curve
• As long as you look from eye level it does not matter what part of the curve you read

Identify the correct measurement and unit in the image provided.

• 40.0 g

• 45.0 mL

• 44.8 mL
• 44.0 g

Complete the following calculation using dimensional analysis and correct conversion factors:

18 days = ___minutes

• 432 min
• 1555200 min
• 3702 min
• 25920 min