Numbers Assessment activity 1.2 Convert the following measurements to the given units: 1. \( 0,65 \mathrm{~kg} \) to g 2. 1548 g to kg 3. 11 am to digital time 4. \( 13: 15 \) to analogue time 5. 10 pm to digital time 6. \( 18,5 \mathrm{~cm} \) to mm 7. \( 50,54 \mathrm{~km} \) to m 8. 2 m to mm 9. \( 12,5 \mathrm{~g} \) to mg 10. \( 3,2 \mathrm{t} \) to kg 11. \( 0,008 t \) to \( g \) 12. 200 mg to g 13. 65000 kg to t 14. 200 mm to cm 15. \( 14,5 \mathrm{~g} \) to kg 16. \( 4425,63 \mathrm{~m} \) to km 17. \( 37^{\circ} \mathrm{C} \) to K 18. \( -1^{\circ} \mathrm{C} \) to K 19. 273 K to \( { }^{\circ} \mathrm{C} \) 20. 301 K to \( { }^{\circ} \mathrm{C} \)

Below are the step‐by‐step conversions: 1. 0.65 kg to g Since 1 kg = 1000 g, 0.65 kg = 0.65 × 1000 = 650 g. 2. 1548 g to kg Since 1000 g = 1 kg, 1548 g = 1548 ÷ 1000 = 1.548 kg. 3. 11 am to digital time “11 am” in digital format is typically written as 11:00 (or 11:00 AM). 4. 13:15 to analogue time 13:15 in the 24‑hour clock equals 1:15 PM. On an analogue clock, the hour hand points a little past 1 with the minute hand on 3. 5. 10 pm to digital time In 24‑hour format, 10:00 PM is 22:00. 6. 18.5 cm to mm Since 1 cm = 10 mm, 18.5 cm = 18.5 × 10 = 185 mm. 7. 50.54 km to m Since 1 km = 1000 m, 50.54 km = 50.54 × 1000 = 50,540 m. 8. 2 m to mm Since 1 m = 1000 mm, 2 m = 2 × 1000 = 2000 mm. 9. 12.5 g to mg Since 1 g = 1000 mg, 12.5 g = 12.5 × 1000 = 12,500 mg. 10. 3.2 t to kg Since 1 t (tonne) = 1000 kg, 3.2 t = 3.2 × 1000 = 3200 kg. 11. 0.008 t to g Since 1 t = 1,000,000 g, 0.008 t = 0.008 × 1,000,000 = 8000 g. 12. 200 mg to g Since 1 g = 1000 mg, 200 mg = 200 ÷ 1000 = 0.2 g. 13. 65,000 kg to t Since 1 t = 1000 kg, 65,000 kg = 65,000 ÷ 1000 = 65 t. 14. 200 mm to cm Since 1 cm = 10 mm, 200 mm = 200 ÷ 10 = 20 cm. 15. 14.5 g to kg Since 1 kg = 1000 g, 14.5 g = 14.5 ÷ 1000 = 0.0145 kg. 16. 4425.63 m to km Since 1 km = 1000 m, 4425.63 m = 4425.63 ÷ 1000 = 4.42563 km. 17. 37°C to K The conversion is K = °C + 273.15, so 37°C = 37 + 273.15 = 310.15 K. 18. -1°C to K -1°C = -1 + 273.15 = 272.15 K. 19. 273 K to °C The conversion is °C = K - 273.15, so 273 K = 273 - 273.15 ≈ -0.15°C. 20. 301 K to °C 301 K = 301 - 273.15 = 27.85°C. Each answer follows the standard conversion factors.