Search results 79 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 Melting, Boiling, and the Heat Needed to Change State by Dr. Osama M. Khaled — published Aug 13, 2026 — last modified Aug 13, 2026 06:19 AM — filed under: Year 11, Year 12 Explore the heat of fusion and heat of vaporization, the difference between crystalline and amorphous solids, and how to calculate the total heat needed to ... Located in Physics / Change of State and Transfer of Heat Transfer of Heat: Conduction by Dr. Osama M. Khaled — published Aug 13, 2026 — last modified Aug 13, 2026 06:22 AM — filed under: Year 11, Year 12 Learn how heat conducts through materials at the molecular level, compare the conductivity of common substances, and calculate heat flow through an object. Located in Physics / Change of State and Transfer of Heat Transfer of Heat: Convection and Radiation by Dr. Osama M. Khaled — published Aug 13, 2026 — last modified Aug 13, 2026 06:32 AM — filed under: Year 11, Year 12 Understand how heat moves through fluids by convection and through empty space by radiation, and see how these two methods explain everyday phenomena. Located in Physics / Change of State and Transfer of Heat Comprehensive Review: Change of State and Transfer of Heat by Dr. Osama M. Khaled — published Aug 13, 2026 — last modified Aug 13, 2026 06:35 AM — filed under: Year 11, Year 12 A comprehensive review covering heat of fusion, heat of vaporization, and the three methods of heat transfer: conduction, convection, and radiation. Located in Physics / Change of State and Transfer of Heat Hess's Law: Combining Reactions by Dr. Osama M. Khaled — published Aug 07, 2026 — last modified Aug 07, 2026 11:19 AM — filed under: Year 11, Year 12 Reverse, scale, and add thermochemical equations to find the ΔH of an overall reaction Located in Chemistry / Energy and Chemistry 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 Energy and Chemistry: Chapter Review by Dr. Osama M. Khaled — published Aug 07, 2026 — last modified Aug 07, 2026 11:31 AM — filed under: Year 11, Year 12 A mixed review spanning work, specific heat, thermochemical equations, Hess's law, and the graphite-to-diamond conversion Located in Chemistry / Energy and Chemistry Loci and Their Equations by Dr. Osama M. Khaled — published Aug 24, 2026 — last modified Aug 28, 2026 09:44 PM — filed under: Year 12, Year 11 Covers the concept of a locus, the three-step method for finding the equation of a locus, and several worked loci based on distance conditions. Located in Mathematics / Calculus / From Geometry to Coordinate Geometry The Polar Coordinate System by Dr. Osama M. Khaled — published Aug 24, 2026 — last modified Aug 28, 2026 09:44 PM — filed under: Year 12 Covers the pole, polar axis, directed angle, negative values of r, multiple representations of the same point, and the relations between polar and Cartesian ... Located in Mathematics / Calculus / From Geometry to Coordinate Geometry Under Pressure: Units and Causes by Dr. Osama M. Khaled — published Jul 14, 2026 — last modified Jul 14, 2026 08:01 AM — filed under: Year 9, Year 11, Year 12 Define pressure, calculate it from force and area, and convert among pascals, atmospheres, torr, and mmHg Located in Chemistry / Gases < Previous 10 items 1 2 3 4 5 6 7 8 Next 10 items > Subscribe to an always-updated RSS feed.
