1 Crore+ students have signed up on EduRev. Have you? 
Measures of length
Measures of mass
Measures of capacity
Capacity is the amount a container can hold
Measures of volume
Volume is the measure of the space taken up by something.
Volume = Length (m) X Breadth (m) X Height (m)
Unit of volume is cubic length, i.e., cubic metre (m3), cubic centimetre (cm^{3}), etc
Example 1: Express 1357.912 metres in higher units and lower units.
1357.912 metre
= 135.7912 decametres
= 13.57912 hectometres
= 1.357912 kilometres
= 13579.12 decimetres
= 135791.2 centimetres
= 1357912 millimetres
Note: Capacity and Volume are different. For example. the capacity of a cylinder is 33 litres while its volume is πR^{2}H (R = radius, H = Height of the cylinder). That is. the amount of gas inside the cylinder is 33 litres but the volume occupied by the Cylinder is πR^{2}H.
Example 2: Express 2 g 3 dg 4cg 5mg in terms of milligrams.
2g = 2000mg
3dg = 300mg
4cg = 40mg
2g 3dg 4cd 5mg = (2000 + 300 + 40 + 5) mg =2345mg
Measurements: Addition
Example 1: Add 2l 3dl 4cl 5ml & 6l 6dl 7cl 8ml
2l 3dl 4cl 5ml + 6l 6dl 7cl 8ml 9l 0dl 2cl 3ml [Ans]
Example 2: Express the above result in terms of ml.
2345ml + 6678ml 9023ml
Note: We cannot add or subtract two different quantities. For example, length (metre) cannot be added with mass (g), mass (g) cannot be added with volume (m^{3}), and volume (m^{3}) cannot be added with length (m)
Example 1: Subtract 3m^{3} 4dm^{3} 1cm^{3 }5mm^{3} from 4m^{3} 3dm^{3} 2cm^{3} 1mm^{3} .
Example 2: Express the above in mm3 and write the result.
Example 1: Divide 5kg 3m^{3} by 5m
= 1 kg 3m^{2}
Temperature
Fahrenheit Scale: A temperature scale on which water freezes at 32 degrees Fahrenheit and boils at 212 degrees Fahrenheit.
Kelvin Scale: A temperature scale that defines absolute zero as 0 degrees. Water freezes at 273 degrees and boils at 373 degrees at this temperature. All objects emit thermal energy or heat unless they have a temperature of absolute zero.
Example 1: Convert 123 degrees Fahrenheit into Celsius and Kelvin.
Celsius = (F32) x 5/9 = (12332) x 5/9 = 50.55 degree Celsius Kelvin = Celsius + 273 = 50.55 + 273 = 323.55 K
Example 2: Convert 45 Celsius into Fahrenheit and kelvin.
Fahrenheit = (Celsius x 9/5) + 32 = (45 x 9/5) + 32 = 113 degrees Fahrenheit Kelvin = Celsius + Fahrenheit = 45+273 = 318 K
12 videos55 docs35 tests

Use Code STAYHOME200 and get INR 200 additional OFF

Use Coupon Code 
12 videos55 docs35 tests
