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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 problem-solving 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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