Click any card to reveal the answer. Use "Reveal all" to study in reference mode. A formula is only secure when you can identify the right quantities from a word problem and convert units before substituting.
Cover the answer, write the formula from memory, then immediately apply it to a word problem. A formula is not secure until you can identify the correct quantities, convert units before substituting, and state the correct unit in the answer.
For definitions, use the shortest complete statement that contains the scoring idea. For diffusion, always include: net movement, particles, higher to lower concentration, down a concentration gradient. For enzymes, always include: biological catalyst, protein, not used up. Avoid conversational wording when a precise syllabus term exists.