SI Units in Physics Quantity Length Name:________________ SI unit Symbol Mass Time Length The unit of length is ________________ § 10 mm = __________ cm § 100 cm = __________ m § 1000 m = ___________ km § 1 micrometer = __________ m § 1 nanometer =_________m Standard Notation/Scientific Notation/Standard Form Large Numbers 5 000 000 can be written as 5 x 106. 5 x 106 - 5 multiplied by 10 six times 5 x 10 x 10 x 10 x 10 x 10 x 10 Another way of looking at this is as follows: Firstly, insert a decimal point after the first number from the left. 5.0 x 106 - 5000000.0 the decimal point moves to the right 6 places 82 000 000 000 000 000 can be written as 8.2 x 1016. 8.2 x 1016 - 8.2 multiplied by 10 sixteen times - 8.2 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 Another way of looking at this is as follows: Firstly, insert a decimal point after the first number from the left. 8.2 x 1016 - 82000000000000000.0 the decimal point moves to the right 16 places 82 000 000 000 000 000 can also be written as 0.82 x 1017or 82 x 1015. Convert the following numbers into Scientific Notation form. (a) 5500 x 10 (b) 7900000 x 10 (c) 960000 x 10 (d) 120 x 10 (e) 6100000000 x 10 (f) 47000 x 10 (g) 8400 x 10 (h) 300000000 x 10 (i) 56000 x 10 (j) 28000000 x 10 Prefixes in Physics Prefix Symbol Multiples of power _____________ G 109 _____________ M 106 _____________ K 103 _____________ m 10-3 _____________ µ 10-6 _____________ n 10-9 x 103 x 10-3