Search results 111 items matching your search terms. Filter the results Item type Select All/None Class Collection File Folder Image Integrator Profile Link Movie Page Parent Profile Parent-Child Link Question Quiz Quiz History Service Subscription Stats Student Profile Teacher Profile New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically Enthalpy Stoichiometry by Dr. Osama M. Khaled — published Aug 07, 2026 — last modified Aug 07, 2026 10:59 AM — filed under: Year 11, Year 12 Use a reaction's ΔH as a conversion factor to find energy from amount, or amount from energy Located in Chemistry / Energy and Chemistry Exercise 1: Statements and Truth Values by Dr. Osama M. Khaled — published Sep 06, 2026 — last modified Sep 06, 2026 07:06 AM — filed under: Year 11, Year 12 Introduces what counts as a genuine logical statement, then practices evaluating the truth values of simple conjunctions, disjunctions, and conditionals built ... Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies Exercise 2: Evaluating Compound Well-Formed Formulas by Dr. Osama M. Khaled — published Sep 06, 2026 — last modified Sep 06, 2026 07:06 AM — filed under: Year 11, Year 12 Practices evaluating compound well-formed formulas (WFFs) built from AND, OR, and negation, given specific truth-value assignments for each variable. Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies Exercise 3: Translating Conditionals and Basic Connectives by Dr. Osama M. Khaled — published Sep 06, 2026 — last modified Sep 06, 2026 07:06 AM — filed under: Year 11, Year 12 Covers translating everyday phrases such as "sufficient condition," "necessary condition," and "only if" into symbolic conditional statements, along with ... Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies Exercise 5: Logical Equivalence, Tautologies, and Applications by Dr. Osama M. Khaled — published Sep 06, 2026 — last modified Sep 06, 2026 07:06 AM — filed under: Year 11, Year 12 Covers testing logical equivalence, identifying the contrapositive of a conditional, verifying tautologies, and applying propositional logic to search-engine ... Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies Exercise 6: Functional Completeness, Multi-Valued Logic, and Logic Puzzles by Dr. Osama M. Khaled — published Sep 06, 2026 — last modified Sep 06, 2026 07:06 AM — filed under: Year 11, Year 12 Covers which sets of logical connectives are functionally complete, extending truth tables to three-valued logic, and solving classic self-referential logic ... Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies Exercises by Dr. Osama M. Khaled — published Oct 19, 2024 — last modified Nov 08, 2024 07:14 PM — filed under: Year 11 Questions covering knowledge about solid Located in Physics / Solids Formal methods and dependability by Dr. Osama M. Khaled — published Oct 06, 2026 — last modified Oct 06, 2026 03:35 AM — filed under: Undergraduate, Year 11, Year 12 This quiz covers the key principles, benefits, techniques, and adoption challenges of formal methods in dependability. Located in Computing / Software Engineering / Dependable Systems Formation Reactions by Dr. Osama M. Khaled — published Aug 07, 2026 — last modified Aug 07, 2026 11:25 AM — filed under: Year 11, Year 12 Identify and write formation reactions and use formation enthalpies to find a reaction's ΔH Located in Chemistry / Energy and Chemistry Formula mass and the Mole concept by Mohamed Osama — published Jun 28, 2026 — last modified Aug 23, 2026 06:16 AM — filed under: Year 11 Exercise questions on the formula mass and the Mole concept Located in Chemistry / Composition of Substances and Solutions < Previous 10 items 1 2 3 4 5 6 7 8 ... 12 Next 10 items > Subscribe to an always-updated RSS feed.