Metric Conversions

What distinguishes a number from a measurement? MEASUREMENTS have a UNIT!

2,500,000 g sec g 33,000 L 52,900 M M

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one anD two step conversions

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes One larger thing equals many smaller things

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes centi (c) 1 g = 100 cg – 1 dollar = 100 cents – 1 meter = 100 cm – 1 liter – 100cl

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes kilo (k) 1 kg = 1,000 g – 1km = 1000 m – 1kL = 1000 L

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes Mega (M) 1 Mg = 1,000,000 g – 1Mm = 1,000, 000 m – 1ML = 1,000, 000 L

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes deci (d) 1 g = 10 dg

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes milli (m) 1 g = 1,000 mg

This lesson… Define the metric prefixes Mega, Kilo, deci, centi, milli, and micro Use conversion factors to perform one an two step conversions Metric prefixes micro (  ) 1 g = 1,000,000  g

Prefix Questions 1.How many meters in 1 Km? 2.How many kilometers in 1 meter?

Which is larger? 3.milliliter or centiliter 4.kilogram or megagram 5.millimeter or kilometer

Convert to solve 6.a penny = 1 _______________dollar 7.a dime = 1 _______________dollar 8.a megabuck = _______________dollars 9.a kilopenny = _______________ dollars

Prefix Questions 1.How many meters in 1 Km? 1000 m 2.How many kilometers in 1 meter? km

Which is larger? 3.milliliter or centiliter centiliter 4.kilogram or megagram 5.millimeter or kilometer

Which is larger? 3.milliliter or centiliter centiliter 4.kilogram or megagram megagram 5.millimeter or kilometer kilometer

Convert to solve 6.a penny = 1 centidollar 7.a dime = 1 deci dollar 8.a megabuck = 1 million dollars 9.a kilopenny = 10 dollars

Prefix and Base Unit Questions 1.What would be the most appropriate unit to measure the distance from here in Orlando to grandmas house in Georgia? 2.What would be the most appropriate unit to measure the mass of a teaspoon of water? 3.What would be the most appropriate unit to measure the volume of air in a birthday balloon?

Prefix and Base Unit Questions 4.What would be the most appropriate unit to measure the mass of a single atom? 5.What would be the most appropriate unit to measure the amount of time for light to reach Earth from the nearest star?

Prefix and Base Unit Questions 1.What would be the most appropriate unit to measure the distance from here in Orlando to grandmas house in Georgia? (kilometer or Megameter) [1500 km]

Prefix and Base Unit Questions 2.What would be the most appropriate unit to measure the mass of a teaspoon of water? (if looked in notes you would have remembered that an average paper clip has a mass of 1 gram)

Prefix and Base Unit Questions 3.What would be the most appropriate unit to measure the volume of air in a birthday balloon? (deciliter or liter)

Prefix and Base Unit Questions 4.What would be the most appropriate unit to measure the mass of a single atom? (microgram) atomic mass unit

Prefix and Base Unit Questions 5.What would be the most appropriate unit to measure the amount of time for light to reach Earth from the nearest star? (mega second) [4.47 LY or 133.5Ms]

Conversions Factor-label method Dimensional analysis Conversion-factor method

FOLLOW THE METHOD

To convert from 1 unit to another: Start every question with a “?” The “?” represents “How many?”

Conversions Convert 152 cm to m becomes ? m = 152 cm

LEARN THE METHOD

Conversion Factor A statement of fact expressed as a fraction equaling one

Conversion Factor Fact: 1 m = 100 cm 1 m100 cm 100 cm 1 m =

Which conversion to use? ? m = 152 cm x ___ m cm

Which conversion to use? ? m = 152 cm x 1 m 100 cm

Which conversion to use? ? m = 152 cm x 1 m 100 cm = 1.52 m

Conversions Convert kg to grams

Conversions 1.Question mark format 2.Cancel units 3.Insert fact 4.Do the math

Follow the method Convert 62 kg to grams 62kg x 1000 g 1kg

Follow the method Convert 1700 μs to ds 1700 μs x 1s x 10 ds 1,000,000 μs 1s

Follow the method mm = ______ km mm x 1m x 1 km 1000 mm 1000m

Follow the method Convert 62 kg to grams 62,000 g Convert 1700 μs to ds ds mm = ______ km 5.6 x km

Problem Set # dg to g cm to  m 3.60 L to mL x m to Km Ks to Ms

FOLLOW THE METHOD

Problem Set # dg to g ? g = 59 dg x 1 g 10 dg = 5.9 g

Problem Set # 1 2.?  m = 9.8 cm 9.8 cm x 1 m x 1,000,000  m 100 cm 1 m 9.8 cm = 98,000  m 9.8 x 10 4  m

Problem Set # 1 3.? mL = 60 L x 1000 ml 1 L 60 L = 60,000 ml or 6 x 10 4 ml

Problem Set # 1 4.? Km = 1.4 x m x 1 Km 1000 m = 1.4 x Km

Problem Set # 1 5.? Ms = 4500 Ks x 1000 s x 1 Ms 1 Ks 1,000,000 s 4500 Ks = 4.5 Ms

A little harder How many yards are in Km? Fact 2.54 cm = 1 inch FOLLOW THE METHOD

FOLLOW THE METHOD

Assignment Complete and bring your notes to class. Be ready to do conversions with metric units. Read Prepare yourself for a quick Chemistry quiz covering this podcast 1 st thing in class tomorrow