how far you have to move on this chart, tells you how far, and which direction to move the decimal place. khDdcm m L g
l Change 5.6 mg to kilograms. l starts at milli position and move six places to the left. Metric Conversions khDdcm m L g
move the decimal point six places to the left 0.0000056 5.6 mg = 0.0000056 kg khDdcm m L g
Change 5.6 m to millimeters starts at the base unit position and move three places to the right. khDdcm m L g
move the decimal point three to the right 5600. 5.5 m = 5600. mm khDdcm m L g
convert 25 mg to grams convert 0.45 km to mm convert 35 mL to liters khDdcm m L g
Density- tells you how much matter is packed into a given volume. Calculated by dividing mass by volume ( D = M ). V
Calculate the density of an object with a mass of 25 g & a volume of 5.0 mL. .D = M = 25 g = 5.0 g/mL. V 5.0mL
Now let’s see how well you can perform some conversions!! Example problems 10 km = _____ dm 0.1 hm = _____ m 1cm = _____ hm 0.01 m = _____ mm 100 dg = _____ dag 10 hg = _____ kg 0.1 mg = _____ dg 0.001 cg = _____ mg 1 kg = _____ g 0.01 dag = _____ cg
temperature (K) = temperature (°C) + 273.15 the melting point of water is = 0°C = 273.15 K the boiling point of water is = 100°C = 373.15 K
*is the temperature at which the vapor pressure of a liquid is one atmosphere. *Units - K (Kelvin)
the melting point of water = 32°F the boiling point = 212°F.
The SI unit of temperature is Kelvin (K). Notice that there is no degree sign used with the abbreviation. To covert from Celsius to Kelvin temperatures: C--> K+ 273 K--> C- 273 CelsiusKelvinFahrenheit Freezing: 0 273 32 Boiling: 100 373 212
Dervied units: are combinations of SI units. Volume: amount of space occupied by an object. Volume=Length X Width X Height V= l X w X h This is used to calculate the volume of a cube and combines three length measurements together. Density: the mass per unit volume of a material. Density=Mass/Volume D=m/V This is a combination of units of mass and volume.
Mass- find the mass of the object using a balance Volume- To find the volume by measuring the length, width, and height. Then calculate density=mass/volume
Mass- find the mass of the unknown using a balance Volume- To find the volume, first measure the water that can immerse the irregular object in a graduated Cylinder. Then dropped the object in the cylinder and note the displacement measurement. Density = mass/volume.