WHY IS THIS USEFUL? CONVERT BETWEEN DIFFERENT MEASUREMENT SYSTEMS DIMENSIONAL ANALYSIS LABEL FACTOR...
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Transcript of WHY IS THIS USEFUL? CONVERT BETWEEN DIFFERENT MEASUREMENT SYSTEMS DIMENSIONAL ANALYSIS LABEL FACTOR...
![Page 1: WHY IS THIS USEFUL? CONVERT BETWEEN DIFFERENT MEASUREMENT SYSTEMS DIMENSIONAL ANALYSIS LABEL FACTOR UNIT FACTOR.](https://reader036.fdocuments.net/reader036/viewer/2022062805/5697c01c1a28abf838ccfbf8/html5/thumbnails/1.jpg)
WHY IS THIS USEFUL? CONVERT BETWEEN DIFFERENT MEASUREMENT
SYSTEMS
DIMENSIONAL ANALYSISLABEL FACTOR UNIT FACTOR
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WHAT IS A CONVERSION FACTOR?
Ratio of units from any two terms that are equal
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HOW MANY DAYS DO YOU HAVE TO LIVE?
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HOW MANY DAYS DO YOU HAVE TO LIVE?
LIFE EXPECTANCY IN THE US = 78.74 YEARS1 YEAR = 365 DAYS
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HOW MANY SECONDS DO YOU HAVE TO LIVE?
LIFE EXPECTANCY IN THE US = 28,740.1 DAYS 1 DAY = 24 HOURS1 HOUR = 60 MIN
1 MIN = 60 SECONDS
DAYS HOURS MINUTES SECONDS
2,483,144,640 seconds
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DIMENSIONAL ANALYSIS
HOW MANY SECONDS ARE IN A YEAR?YEAR DAYS HOURS MINUTES SECONDS
365𝑑𝑎𝑦𝑠1 𝑦𝑒𝑎𝑟
×24h𝑜𝑢𝑟𝑠
1𝑑𝑎𝑦×60𝑚𝑖𝑛𝑢𝑡𝑒𝑠
1h𝑜𝑢𝑟×60𝑠𝑒𝑐𝑜𝑛𝑑𝑠1𝑚𝑖𝑛𝑢𝑡𝑒
=¿
31,536,000 seconds
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HOW MANY MINUTES ARE IN A SCHOOL YEAR?
1 year = 177 days1 day = 410 minutes
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HOW MANY MINUTES ARE IN A SCHOOL YEAR?
1 year = 177 days1 day = 410 minutes
72,570 minutes
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HOW MANY CENTIMETERS TALL IS WILLY CAULIE-STEIN?
Willy Caulie-Stein is 7 feet tall1 foot = 12 inches
1 centimeter = 0.39 inches
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HOW MANY CENTIMETERS TALL IS WILLY CAULIE-STEIN?
215 centimeters
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PALE BLUE DOT
Pale Blue Dot is a photograph of planet Earth taken on February 14, 1990, by the Voyager 1 space probe from a record distance of about 6 billion kilometers
Voyager 1 was commanded by NASA to turn its camera around and take one last photograph of Earth across a great expanse of space at the request of astronomer and author Carl Sagan.
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PALE BLUE DOT
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HOW MANY BILLIONS OF MILES AWAY WAS VOYAGER 1 WHEN THIS
PHOTOGRAPH WAS TAKEN?
Voyager was 6 billion kilometers away when it took this picture of Earth.
1 mile = 1.61 kilometers
3.7 billion miles
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BESIDES THE EARTH SELFIE, WHAT ELSE DID VOYAGER 1 DO?
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HOW MANY BILLIONS OF FEET AWAY WAS VOYAGER 1 WHEN PALE BLUE DOT WAS TAKEN?
6 billion kilometers away when it took Pale Blue Dot.
1 mile = 1.61 kilometers1 mile = 5,280 feet
= =
19677 billion feet
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HOW FAR DOES NORTH AMERICA TRAVEL EACH YEAR?
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HOW FAR DOES NORTH AMERICA TRAVEL EACH YEAR?
The North American Plate travels 2.3 cm/year. How many meters does it move each year?
1 meter = 100 centimeters
0.023 m/year
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HOW THICK ARE EARTH’S LAYERS?
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HOW THICK ARE EARTH’S LAYERS?
LAYER KILOMETERS MILES
Inner Core 2432 1511
Outer Core 2270 1410
Mantle 2885 1792
Continental Crust 30-40 19-25
Oceanic Crust 5 3
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HOW DEEP HAVE WE GONE? 12.262 KILOMETERS
Conversion Factors 1 km = 0.62 miles1 mile = 5280 feet1 foot = 12 inches
1 inch = 2.54 centimeters
How deep have we dug in miles? How deep have we dug in feet?
How deep have we dug in inches? How deep have we dug in centimeters?
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HOW DEEP HAVE WE GONE? 12.262 KILOMETERS
How deep have we dug in miles?
How deep have we dug in feet?
How deep have we dug in inches?
How deep have we dug in centimeters?
• 7.602 miles
• 40,140.883 feet
• 481,690.510 inches
• 1,223,494.12 cm
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HOW DO WE KNOW THAT THE EARTH IS LAYERED?
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WHO FIGURED IT OUT?
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WHAT THE LAYER IS VS.
WHAT THE LAYER DOES
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DENSITY INCREASES FROM THE CRUST TO THE INNER CORE
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CONVECTION CURRENTS TRANSFER THE CORE’S HEAT
What’s a convection current? Cycle of heat transfer: warm matter rises, cold matter sinks
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EARTH’S CORE IS AS HOT AS THE SURFACE OF THE SUN!
6000°C
Thermal energy from the Earth’s formation drives–Cycling of matter
between layers– Earth’s magnetic field
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CONVECTION CURRENTS TRANSFER THE EARTH’S HEAT
Radioactive decay in the Earth’s crust and mantle add heat
Convection in the mantle drive plate tectonics
Convection in the outer core drives the magnetic field
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MATTER IS CYCLED BETWEEEN THE CRUST AND THE MANTLE AT
PLATE BOUNDARIES
Hot mantle material rises to form new crust where plates are pulled apart
Cold crustal material sinks back into the mantle where plates are pushed together
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The flow of matter in the outer core generates Earth’s magnetic field
CONVECTION IN THE OUTER CORE
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HOW DOES CONVECTION IN THE OUTER CORE CREATE EARTH’S MAGNETIC FIELD?
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WHY DO WE NEED A MAGNETIC SHEILD?
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EVIDENCE FOR CONTINENTAL DRIFT
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ALFRED WEGENER
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