1.1 length and time hyeji jun
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IGCSE Physics
Hyeji Jun
1.1 LENGTH ANDTIME
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LENGTH6/25/16 http://ap-physics.david-s.org 2
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Defnition: Represents the size of anobject from one side to the other.
UNITs(etric!:
meter
millimeter centimeter
kilmeter
!ecimeter
N"nmeter
UNITs(standard!:
mile
y"r! inch
#t
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TI$%
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Defnition:A measureable periodwhen something occurs.
UNITs: secn!
millisecn!
n"nsecn!
minute
hur
!"y
mnth
$e"r
Century
li%ht ye"r
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&i'li%r"(hy
htt()**+++.num'ernut.cm*(re"l%e'r"*units,len%th.(h( htt()**+++.ssm"th.cm*"l%e'r"*unitcn-*unit*im%1.%i#
htt()**science.(su.e!u*"lert*im"%es*Tiny&r+nD+"r#System/02.%i#
htt()**s3."m"4n"+s.cm*me!i".+'ur.r%*+r!(ress*1*#iles*13*5*52/time,(cket,+"tch.j(%
htt()**+++.histry.cm*s3st"tic*-i!e,thum'n"ils*AETN,
Histry/6MS*1*115*Histry/&uil!ers/#/The/Gre"t/7"ll/891/reS:/HD/still/;8