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Metal and Engineering

Home > Metals and Engineering > Compulsory Units > MEM12024A: Perform computations > Perform computations

Activity 1 Interactive

1. Indicate if the following measurements have been “rounded off” correctly to 2 decimal places.
   
   

   69.4783 becomes 69.48	Yes / No
   69.4719 becomes 69.48	Yes / No
   69.4783 becomes 69.50	Yes / No
   69.4723 becomes 69.47	Yes / No
   69.4683 becomes 69.48	Yes / No

   
   
   
2. Indicate whether the following units are part of the metric system or imperial system of measurement.
   
   

   millimetres	metric/imperial
   inches	metric/imperial
   square inches	metric/imperial
   cubic feet	metric/imperial
   kilograms per cubic metre	metric/imperial
   pounds per square inch	metric/imperial
   tons	metric/imperial
   tonnes	metric/imperial
   kilograms	metric/imperial
   pounds	metric/imperial
   feet per minute	metric/imperial
   metres per second	metric/imperial

   
   
   
3. Select the correct abbreviation for these common units of measurement.
   
   

   square centimetres	cm²	²cm	c²
   degrees Celsius	C°	°C	°Ce
   kilograms per cubic metre	kg/m³	kg.m³	kg³m
   micrometre	mm	μm	Ψm

   
   
   
4. Select the correct expansion of these abbreviations
   
   

   m³	cubic metre metre cubed mass cubed cubic mass
   mm²	millimetre squared micrometre squared square millimetres square micrometre
   kPa	kilo Pass kilo Pressure kilo Pascals

   
   
   
5. Indicate whether the following conversions are correct
   
   

   20 mm = 0.2 m	Yes / No
   248.3 mm = 0.2483 m	Yes / No
   2 m² = 2000 mm²	Yes / No
   3 m³ = 3 000 000 000 mm³	Yes / No
   2 kg = 2000 g	Yes / No
   700 g = 7 kg	Yes / No
   7 L = 700 ml	Yes / No
   8 ml = 8 cm³	Yes / No
   3 kPa = 300 Pa	Yes / No
   5 MPa = 5 000 Pa	Yes / No

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