Units & formula explainer
Paste a Physical Sciences problem and your own working. Pocket Tutor picks the CAPS data-sheet formula, converts every quantity to SI base units and checks the units step by step — so you catch the mistake before the marker does.
Unit converter
Convert between related units before you substitute — most lost marks come from grams left as grams or minutes left as minutes.
250 cm = 2.5 m (x 0.01)
SI base unit for length: m — always substitute in this unit.
Quantities found in your problem
- 2 kg = 2 kg(kilogram converted to SI base units)