Physical Science Measurements 4

Investigation and experimentation 7a, 7b Standard 9: Scientific progress is made by asking meaningful questions and conducting careful investigations. Investigation and experimentation 7a, 7b

Today’s Work Copy blue text onto notes The S. I Today’s Work Copy blue text onto notes The S.I. system of measuring (metrics)

Ancient times, the leader declared their body parts to be units of measure

1 foot thumb = 1 inch

Your queen is huge so your “pound” weighs more than our pound Renessance comes along, and countries are sharing science, and other ideas. PROBLEM - our measurements do not match your measurements. Your queen is huge so your “pound” weighs more than our pound Therefore, our instructions need to be converted – a big math problem!

Scientists get together in Europe to share information Scientists get together in Europe to share information. The measurement problem is something they want to solve. 1. Make MY king’s body parts the World’s measurements. No, make My king’s. No, Mine! Mine! No, we need to honor Our King. 2. How about we NOT honor anyone. Lets pick something EVERYONE has!

They agree to use things common to all They agree to use things common to all! Length (meter) – based on the circumference of the Earth (40 million meters) Mass (gram)– based on the mass of one cubic centimeter of water Volume (liter) based on the size of a cube 10 cm cubed. That equals 1000 cc, or 1000 milliliters.

Countries around the world agree and SI (metric system) is born Countries around the world agree and SI (metric system) is born. (SI is the abbreviation for the French term Système Internationale d'Unités). Even the U.S. agrees…later. Much later, oops, not at all.

S.I. Measurement The International System of Units (SI) is the standard measuring system for most scientists. SI combines prefixes and base units to define large and small quantities.

What type of measure is this? Measurements What type of measure is this? Type notes here

ANSWER 1. Measurement of LENGTH (linear) includes height, and width 2. SI Unit of measure = Meter 3. English unit of measure = foot or inch Type notes here

What type of measure is this? Type notes here Dog Feed 20 lbs

ANSWER 1. Measurement of Mass (weight) 2. SI Unit of measure = gram 3. English unit of measure = ton, pound, ounce Type notes here

What type of measurement is this? Type notes here

ANSWER 1. Measurement of Volume 2. SI Unit of measure = liter 3. English unit of measure = ounce, cup, pint, quart, gallon Type notes here

What type of measure is this? 120 YDS Type notes here 53.3 YDS

ANSWER Measurement of Area SI Unit of measure = Square meter 3. English unit of measure = square inch, sq foot, acre Type notes here

What type of measure is this? Type notes here 70 MPH

ANSWER 1. Measurement of speed (or, if we have the direction- velocity) 2. SI Unit of measure = meters per hour 3. English unit of measure = miles per hour Type notes here `

How do you measure loudness of sound? Type notes here

ANSWER 1. Measurement of decibels which is the unit in both SI & English Type notes here

How do you measure Heat? Type notes here

ANSWER 1. Measurement of temperature 2. SI Unit of measure = degrees Celsius (centigrade) or Kelvin 3. English unit of measure = Fahrenheit Water boils at 100 Type notes here

How do you measure Light? Type notes here

ANSWER 1. Measurement of light 2. SI uses Lumens 3. English uses Foot Candles Type notes here

What tools are used to measure? Measuring Tools Type notes here

Linear measure: tools-> Ruler, meter stick, tape measure Type notes here

Scale; balance; weight tape (livestock) Weight Measure: tools-> Scale; balance; weight tape (livestock) Type notes here

measuring spoon, beaker Capacity Measure: tools-> Measuring cup; grad-uated cylinder, pipette; measuring spoon, beaker Type notes here

tape measure, meter stick Volume Measure: tools-> tape measure, meter stick Type notes here

yard stick, tape measure, wheel measure, survey tools Area Measure: tools-> yard stick, tape measure, wheel measure, survey tools Type notes here

Speedometer, radar, laser speed detector, photography (astronomy) Speed Measure: tools-> Speedometer, radar, laser speed detector, photography (astronomy) Type notes here

Decibel meter, hydrophones Sound Measure: tools-> Decibel meter, hydrophones Type notes here

Light Measure: tools-> Photometer Type notes here

Heat Measure: tools-> Thermometer, Infrared radiation meter. Type notes here