Chapter 1 Measurements Units of Measurement. Measurement You are making a measurement when you  Check you weight  Read your watch  Take your temperature.

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Measurements Units of Measurement

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Presentation transcript:

Chapter 1 Measurements Units of Measurement

Measurement You are making a measurement when you  Check you weight  Read your watch  Take your temperature  Weigh a cantaloupe What kinds of measurements did you make today?

Standards of Measurement When we measure, we use a measuring tool to compare some dimension of an object to a standard.

Some Tools for Measurement

Learning Check From the previous slide, state the tool (s) you would use to measure A. temperature____________________ B. volume ____________________ ____________________ C. time____________________ D. weight____________________

Solution From the previous slide, state the tool (s) you would use to measure A. temperature thermometer B. volume measuring cup, graduated cylinder C. timewatch D. weightscale

Learning Check What are some U.S. units that are used to measure each of the following? A. length B. volume C. weight D. temperature

Solution Some possible answers are A. length inch, foot, yard, mile B. volume cup, teaspoon, gallon, pint, quart C. weight ounce, pound (lb), ton D. temperature  F

Metric System (SI) Is a decimal system based on 10 Used in most of the world Used by scientists and hospitals

Units in the Metric System length meter m volumeliter L mass gram g temperatureCelsius °C

Stating a Measurement In every measurement there is a  Number followed by a  Unit from measuring device

Learning Check What is the unit of measurement in each of the following examples? A. The patient’s temperature is 102°F. B. The sack holds 5 lbs of potatoes. C. It is 8 miles from your house to school. D. The bottle holds 2 L of orange soda.

Solution A. °F (degrees Fahrenheit) B. lbs (pounds) C. miles D. L (liters)

Triple Balance Beam online.com/Objects/ViewObject.aspx?ID=G CH202 online.com/Objects/ViewObject.aspx?ID=G CH202

Thermometers (temperature) ometer.html ometer.html

Ruler (length) online.com/objects/ViewObject.aspx?ID=M SR online.com/objects/ViewObject.aspx?ID=M SR3102

Graduated Cylinder (liquids) online.com/objects/ViewObject.aspx?ID=gc h302 online.com/objects/ViewObject.aspx?ID=gc h302

Now it is your turn to measure… Teacher will hand out packet Put name and class period at top As a class we will do one example of each type of measurement. Do rest on own Is DUE first thing tomorrow for a GRADE!