1) A physical quantity with no unit a) relative speed b) relative velocity c) force d) relative density e) pressure f) momentum 2) A tool used to measure internal diameter a) ruler b) tape c) compass d) micrometer e) digital scale f) protractor 3) A tool used to measure mass of golden ring a) common balance b) analogue scale c) sensitive balance d) digital watch e) vernier caliper f) micrometer 4) the number of fundamental quantities a) 7 b) 9 c) uncountable d) 10 e) 6 f) 3 5) the physical quantity that has the same units in all systems a) second b) kg c) mass d) time e) length f) cm

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