MAT1236 Study Guide - Final Guide: Cylinder Block, Protractor
14 Jun 2018
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Measurement:!!
Is!the!process!by!which!we!quantify!observable!aspects!of!the!world!around!us.!Various!principles!
apply:!all!measurements!are!approximate,!must!include!both!a!number!and!the!unit!(unit!must!
match!the!attribute!being!measured)!there!is!an!inverse!relationship!between!the!size!of!the!unit!
used!to!measure!and!the!number!of!units!needed,!measurements!are!most!easily!compared!when!
standard!units!are!used.!Estimation:!the!mental!process!of!arriving!at!an!approximate!measurement!
without!the!aid!of!measuring!instruments,!through!using!a!referent!(im!about!1.5m!so!the!door!must!
be!about!2m)!chunking!(I!know!it!is!1m!to!the!knob,!another!1m!to!here,!so!it’s!a!little!more!than!2m)!
or!unitising!(each!cylinder!block!is!about!20cm,!there!are!10!blocks!so!about!200cm)!Measures!of!
height,!depth,!width,!breadth,!distance,!perimeter!and!circumference!are!all!measures!of!length.!
(km,!m,!cm,!mm-measured!with!rules,!odometers,!tape!measures)!Area!is!the!amount!of!2D!surface!
within!a!plane!shape!(measured!in!km2,!m2,!cm2,!mm2,!measures!length!and!width!or!base!and!
height).!Volume!if!the!amount!of!space!occupied!by!a!3D!object!(measured!in!m3,!cm3!or!L,!mL)!
Capacity!is!the!amount!an!object!or!container!can!hold.!(measured!in!m3,!cm3,!or!L,!mL)!**1mL!=!
1cm3.!Mass:!the!amount!of!matter!in!an!object!(measured!with!scales,!a!balance!compares!the!mass!
of!two!objects.!Weight:!the!force!that!gravity!exerts!on!the!object!(measured!with!a!force!gauge!and!
in!Newtons)!Time:!abstract!concept!that!cannot!be!observed,!measured!using!days,!minutes,!weeks,!
hours!etc.!You!can!describe!the!time!of!occurrence!of!an!event,!and!the!duration!of!an!event.!The!
world!is!divided!into!24!timezones.!Temperature:!measured!in!degrees!Celsius.!Angle:!measures!the!
amount!through!which!an!object!has!turned,!measured!in!degrees!using!a!protractor.!(classified!as!
acute,!right,!obtuse,!reflex,!revolution).!!
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Converting:0when!converting!from!a!larger!to!a!smaller!unit,!we!multiply.)When!converting!from!a!
smaller!to!larger!unit,!we!divide.!!
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Document Summary
Is the process by which we quantify observable aspects of the world around us. Volume if the amount of space occupied by a 3d object (measured in m3, cm3 or l, ml) Capacity is the amount an object or container can hold. (measured in m3, cm3, or l, ml) **1ml = Mass: the amount of matter in an object (measured with scales, a balance compares the mass of two objects. Weight: the force that gravity exerts on the object (measured with a force gauge and in newtons) time: abstract concept that cannot be observed, measured using days, minutes, weeks, hours etc. You can describe the time of occurrence of an event, and the duration of an event. Angle: measures the amount through which an object has turned, measured in degrees using a protractor. (classified as acute, right, obtuse, reflex, revolution). Converting: when converting from a larger to a smaller unit, we multiply.
