60 Km In Miles – 1 If you are going 60 mph, are you breaking the speed limit in a 40 mph zone?
One kilometer = 0.62 miles 60 kilometers per hour = 37.2 miles per hour You are not going fast! Kilometers per hour and miles per hour measure the same quantity using different units.
60 Km In Miles
The nature of quantitative observation measurement consists of two parts. Numerical standard (unit) Example 20 g 6.63 x J·s
A Germany Army Main Battle Tank Leopard 2a6 Takes Part In The Lithuanian German Military Exercise ‘griffin Storm 2023’ At A Training Range In Pabrade, Some 60km (38 Miles) North Of The Capital
Physical quantity, unit name, abbreviation, mass, kilogram, kilogram, length, meter, time, second, second, temperature, kelvin, K, ampere, electric current, amount of substance, mole, mole, candela, luminous intensity, CD
7 Metric System SI Prefixes Prefix Symbol Meaning Coefficient (Number) (Exponential) Yota Y Septillion 1, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000 1024 zetta0, 0,000 , 000, 000, 000 10 21 Exa E Quintillion 1, 000, 000, 000, 000, 000, 000 1018 Peta P Quadrillion 1, 000, 000, 000, 000 Turn 01, 000 0, 000, 000 1012 Giga G Billion 1, 000, 00 . billion 10-9 pico trillion 10-12 femto quadrillion 10-15 atto quintillion 10-18 up to 10-18 y septillionth 10-24 When using dimensional analysis for metric problems: always treat the larger unit as a value of 1, then the smaller unit is a larger multiple of that unit. X 1000 X 10 X 10 X 1000 Example: 1 meter compared to centimeters.
Metric Conversions SI Prefix Symbol Meaning Coefficient (Number) (Exponential) Yota Y Septillion 1, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000 1024 zetta0, 0,000 , 000, 000, 000 00 102 1 Exa E Quintillion 1, 000, 000, 000, 000, 000, 000 1018 Peta Pi Quadrillion 1, 000, 000, 000, 000 Terlion 010,000 0, 000, 000 1012 Giga G Billion 1, 000, 000 00 , 000 109 Mega M Million 1 , 000 , 000 106 Kilo Thousand 1 , 000 103 Hecto H Hundred 100 102 100 100 102 101 CentiC Hundredth 0.01 10-2 Millimeter Thousandth 0.001 10-3 Million 10-6 Nano Billion 10-9 P co trillion 10-12 femto quadrillion 10-15 to 10-15 to 1000 trillionth 10-21 yocto y septillionth 10-24 Always change prefixes to UNITS (not prefixes to other prefixes) Example: Mm compared to pm. Meters, Liters, Grams, Factors, Ratios, Equivalents. Example: cm compared to m
LENGTH km hm DAM METER (m) dm cm mm mm 2.54 cm = 1 in. 1 mile = 5,280 feet. 1 yd = 36 inches. 60. Convert miles per hour to kilometers per second. How many cubic meters of water are in 25 cubic feet? 3 3 3
The Graph Shown Can Be Used To Convert Between Kilometres And Miles….
10 Mass ≠ Weight Mass is a measure of an object’s resistance to change its state of motion. Crime doesn’t matter. Weight is the force of gravity on an object. Weight varies with the strength of the gravitational field.
10 cm 10 cm on each side 1 dm3 = 10 cm long cubic liter. 10 cm 1 L = dm3 = (10 cm) 3 = (10 X 10 X 10) cm3 = 1000 cm3 = 1000 mL or 1mL = 1/1000 L cubic centimeter A cubic milliliter (mL) is 1 cm long on each side. = ml
Amount of matter (# atoms) per unit volume = compactness. Mass divided by volume = D = m V Mass (grams) Volume (mL)
(a) What is the mass (g) of this piece of metal if it displaces 12. mL of water in the graduated cylinder? b) What is the volume in milliliters of 34 kg of the same metal?
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16 * Temperature: A measure of the average kinetic energy (motion due to heat) of particles in a sample. T = Change in temperature As KE increases, molecules vibrate more and their volume increases (temp). 373 273 100 100 – 0 212 32 180 C = (F − 32) 1.8 F = 1.8 (C) + 32 K = C
Use one unit system to another when converting a given result. To convert from one unit to another, use an equality expression for both units. Obtain the appropriate unit multiplier by looking at the required change direction (to cancel unwanted units). Multiply the amount to be converted by the unit coefficient to get the quantity with the desired units.
If you know the conversion for any type of measurement, you can convert anything! You should remember and use these conversions: Mass: 454 grams = 1 pound Length: cm = 1 inch Volume: L = 1 quart
A golfer hits a golf ball 6.8 feet onto the green. How many inches does it represent? Example #1 To convert from one unit to another, use an equality expression for both units. 1 foot = 12 in two unit factors:
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20 Example #1 A golfer puts a 6.8 foot golf ball onto the green. How many inches does it represent? Obtain the appropriate unit multiplier by looking at the required change direction (to cancel unwanted units). Multiply the amount to be converted by the unit coefficient to get the quantity with the desired units.
21 Example #2 A sample of iron has a mass of 4.50 pounds. What is the mass of this sample in grams? (1 kg = pound; 1 kg = 1000 grams)
Use the conversion factors you already know, but when you square or cube a unit, don’t forget to cube the number too! Best Way: Square or Cube Total Conversion Factor Example: Convert 4.3 cubic centimeters to 3 mm.
23 Concept Check! What data do you need to estimate how much you will spend on gas to drive your car from New York to Los Angeles? Provide an estimate of values and a sample calculation. This problem requires students to think about how they would solve the problem before plugging the numbers into the equation. A sample answer: Distance between New York and Los Angeles: miles Average gas mileage: 25 miles per gallon Average gas price: $2.75 per gallon (3,200 miles) × (1 gallon/25 miles) × ($2.75/1 gallon total) = $352 Cost per gallon = $35
Rbs #01 Is A New All Terrain E Scooter From Red Bull F1 Team That Has A Top Speed Of 45 Km/h (27 Mph) And A Range Of 60 Km (37 Miles)
Sport! At what temperature °C = °F? Since Celsius is the same as Fahrenheit, both must have the same value (assigned to the x variable). Use one of the conversion equations, for example: Substitute the value of x for TC and TF. Solve for x. The answer is -40. Since Celsius is the same as Fahrenheit, both must have the same value (assigned to the x variable). Use one of the conversion equations such as °C = (°F-32)(9/5) and substitute the x value for both °C and °F. Solve for x
Formerly 2) The volume of water in a graduated cylinder is 27.0 ml. A portion of lead is slowly poured into the cylinder and its volume is converted to milliliters. Given that the density of lead is 11.3 g/cm3, what is the mass of lead? Formerly 3) An empty glass has a mass of 25.83 grams. When filled with mercury, its new mass is 225.3 grams. If the density of mercury is g/cm3, what is the mass of a human being?
Between 1.5 and 1.6 in measured length: 1.54 in 1 and 5 is known with certainty The last digit (4) is estimated between the two nearest division marks. Copyright © by Fred Senes
The figure to be estimated in a measurement is called the unknown. Measurement always has some uncertainty. It depends on the accuracy of the measuring device. Record the exact digits and the first uncertain digit (guess number).
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The volume below the liquid curve (Neniscus) is read. Liquid meniscus occurs in about ml. Certain Stats: 20.15 Uncertain Stats: 20.15
The agreement of the specified value with the actual value. Precision is the degree of agreement between several measurements of a quantity.
1. Non-zero integers are always considered significant numbers. 3456 has 4 sig figs (significant figures). 2. There are three zero classes. A. Leading zeros are zeros that precede all non-zero digits. These figures are not significant. 0.048 contains 2 sig figs.
Zero classes. b Enclosed zeros are zeros between non-zero digits. These are always important statistics. 16.07 contains 4 sig figs. Trailing zeros are zeros at the end of the right-hand side of a number. They are only significant if the number has a decimal point. 9.300 contains 4 sig figs. 150 contains 2 sig figs.
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3. Exact numbers have an infinity of significant numbers. 1 inch = 2.54 cm, exactly.
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