\( {\rm Which \ of \ the \ following \ options \ consist \ of \ ONLY \ SI \ units?}\)
\( {\rm kg,\ m ,\ s,\ J, \ K, \ N, \ C, \ A, \ mol}\)
\( {\rm g, \ m, \ s, \ J, \ K, \ N, \ C, \ A, \ mol}\)
\( {\rm lb, \ ft, \ s, \ Cal, \ lbF, \ C, \ A, \ mol}\)
\( {\rm kg, \ km, \ s, \ J, \ K, \ N, \ C, \ A, \ mol}\)
\( {\rm The \ Earth's \ radius \ is \ 6,371km. \ How \ far \ is \ this \ in \ metres, \ expressed \ in \ standard \ form?}\)
\( {\rm 6,371,000 \ m}\)
\( {\rm 6.371 \ x \ 10^6 m}\)
\( {\rm 6.371 \ x \ 10^3 m}\)
\( {\rm 6.371 \ x \ 10^9 m}\)
\( {\rm The \ length \ of \ one \ side \ of \ a \ cube \ is \ 5.00cm. \ What \ is \ the \ volume \ in \ m^3?}\)
\( {\rm 1.25\ x \ 10^2 m^3}\)
\( {\rm 1.25 \ x \ 10^{-4} m^3}\)
\( {\rm 1.25 \ x \ 10^{-8} m^3}\)
\( {\rm 1.25 \ x \ 10^{-6} m^3}\)
\( {\rm 1.25 \ x \ 10^{-2} m^3}\)
\( {\rm The \ density \ of \ aluminium \ is \ 2.7gcm^{-3}.\ Convert \ this\ to \ kgm^{-3}.}\)
\( {\rm 2.7 \ x \ 10^{-9} kgm^{-3}}\)
\( {\rm 2.7 \ x \ 10^{-6} kgm^{-3}}\)
\( {\rm 2.7 \ x \ 10^3 kgm^{-3}}\)
\( {\rm 2.7 \ x \ 10^{-1} kgm^{-3}}\)
\( {\rm 2.7 \ x \ 10^6 kgm^{-3}}\)
\( {\rm In \ 2012 \ the \ City \ of \ London \ consumed \ 3,400kWh \ of \ electricity. \ How \ much \ energy \ was \ this \ in \ Joules?}\)
\( {\rm 1.224 \ x \ 10^{10} J}\)
\( {\rm 3.4 \ x \ 10^6 J}\)
\( {\rm 1.224 \ x \ 10^7 J}\)
\( {\rm 3.4 \ x \ 10^3 J}\)
\( {\rm 1.224 \ x \ 10^6 J }\)
