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How many base units are in SI? 

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What is a defined unit in a system of measurement that is based on an object or event in the physical world. 

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What is the base unit for time? 

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What is the base unit for length? 

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What is the base unit for mass? 

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What is the base unit for temperature? 

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What is the base unit for an amount of a substance? 

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What is the base unit for electric current? 

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What is the base unit for luminous intensity ? 

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A meter is the distance that _ travels through a vacuum in 1/299 792 458 of a second. 

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What is the term for a space containing no matter? 

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A kilogram is about _._ pounds (give number) 

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A unit that is defined by a combination of base units is called a _ unit. 

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Volume and density are measured in a. derived units b. base units 

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_ is the space occupied by an object 

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What is the derived unit for volume? 

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The metric unit for volume equal to one cubic decimeter is a _. 

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_ are used to measure the amount of liquid in a contained of bottled water or a carbonated beverage. 

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One liter = _ milliliters. 

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_ is a ratio that compares the mass of an object to its volume. 

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The units for density are often _ per cubic centimeter. 

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What is the equation for density? 

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How can you remember the formula for density? 

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The _ of an object is a measure of how hot or cold the object is relative to other objects. 

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Hot and cold are _ terms. a. qualitative b. quantitative 

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Name the two scales used for temperature. 

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The Celsius scale was devised by.. 

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On the Celsiusscale, Anders defined the freezing point as _ and the boiling point as _. 

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The Kelvin scale was devised by a Scottish physicist and mathematician named..? 

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A _ is the Si base unit of temperature. 

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On the Kelvin scale, water freezes at about _ K and boils at about _ k. 

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Is the degree sign used for kelvin? 

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To convert Celsius into kelvins, you _aORb _ (in other blank name the number) a. subtract b. add 

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To concert Kelvin to Celsius, you _aORb _ (second blank give number) a. add b. subtract 

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_ expresses numbers as a multiple of two facts. 

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What is a ratio of equivalent values used to express the same quantity in different units? 

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true or false. a conversion factor is always equal to one. 

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What is a method of problemsolving that focuses on the units used to describe matter. 

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true or false. dimensional analysis does not use conversion factors. 

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_ refers to how close a measured value is to an accepted value. 

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) refers to how close a series of measurements are to one another. 

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What is the ratio of an error to an accepted value? 

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What is the formula to find percent error? 

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percent error = (error / accepted value) times 100 


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Significant figures include all known digits plus one estimated digit. true or false. 

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