5. What two requirements generally must be met before recognizing revenue in a period? 6. Define expense. What principles guide the recognition of expense? 7. How does an expense differ from a loss? 8. What is the full disclosure principle? 9. What role does cost-benefit play in financial reporting? 10. What is meant by the accounting term conservatism? How does it affect the amounts reported in the financial statements? 11. Does materiality relate only to the relative size of dollar amounts