ACI: SPH3U Introduction 3. Write the following SI derived units in terms of fundamental units: . area = (length) (length) density = mass volume speed = distance time . charge = (current) (time) . energy = = (mass) (velocity) 2 4. What is the density of a rock that has a mass of 5.33 kg and a volume of 0.0176 m3? 5. What is the speed of a car that travels 397 km in 3.12 hours? Scientific Notation 6. Write the following in SI units Measurement Measurement in SI units 725 Mg 1 360 000 km 0.012 4 ms 257 ml 1.53 x 104cm 9.25 um