Similar Shapes
This lesson covers the identification of similar shapes such as triangles, rectangles, squares, cubes, and cuboids. It explains the criteria for similarity, including proportional sides and equal angles. The lesson also includes methods for enlarging figures using scale factors and calculating lengt
- 21:53 “D, E and F, now it just means 1 over 2 multiplied by the base, what is the base, the base is 32, multiplied by what is the height, the height is 24, now when you look at this, what you are just simply doing is treating t...”
- 32:36 “Calculate the area of one phase of cube K, area that is the area of the cube. Then calculate the volume of cube K. You calculate the volume of cube K. Thank you very much, I come to the end of the class. My name is Oyase...”
- 23:43 “triangle, BAC, that's remember from the scalar, from the scalar that we meant comparison, now you will see why the scalar of 2 can also be checked, so that gives me 384, the bigger one, over 96, now if you look at 96, so...”
Gas Laws Overview
This lesson covers the basic gas laws including Boyle's Law and Charles's Law. It explains the relationship between volume, pressure, and temperature of gases, and introduces the Kelvin scale for temperature. The general gas equation PV = nRT is also discussed.
- 15:32 “so we obtain V2 equals P1, V1, T2, all over P2 over T1, P2 over T1, then V2, putting all the values in, you have 758 times 35 times 273, all over 76, and then T1 is 279. You obtain, at the end of the if you put your capi...”
- 00:58 “the larger the normal of molecules per unit volume, the larger the normal of collisions, and the higher the pressure, which implies that the more the pressure, the lesser the volume, and the more the volume, the lesser t...”
- 16:22 “in simple ratios, one another, and to the volume of the produce, if gaseous, provided at temperature and pressure remains constant. For example, one volume of oxygen is required for the complete combustion of 15 cm cube,...”
Fundamental and Derived Quantities
This lesson covers the definitions of fundamental and derived quantities in physics. It explains how fundamental quantities serve as the base for deriving other quantities and the importance of measurement in physical science.
- 07:06 “units. So this table doesn't show completely the number of the life quantity and their units, so we only is limited. As I said, there are numerals, there are in a Zostibu number of these derived quantity. So the first on...”
- 07:51 “the breadth, and the height. So when you, the product of the three dimensions, we give all the words the meter cube. So we have density. Density is dependent on the mass and the volume of an object. If you want to know h...”
- 05:34 “A. A amount of substance is a very powerful concept in the realm of physics, in the realm of chemistry. It could mean the mass of the substance over the molar mass, and it can be, it has another set of relationship, too....”
Solution and Solubility
This lesson covers the concepts of solution, solute, and solvent. It defines solubility and explains different types of solutions, including saturated, unsaturated, and super saturated solutions. Factors affecting solubility and calculations related to solubility are also discussed.
- 26:58 “actual to express in more PDNQ, now already here you have to bring out what is it that we're giving, here, we are giving basically the mass, all right, then now we're giving the volume, take note of that, all right, we'r...”
- 10:59 “so solubility is coming to express also as mass times 1,000 all over molar mass times volume. Now, how this is actually gotten is, we know that solubility from the definition, solubility is equal to not the most of solut...”
- 27:44 “molar mass of lead nitrates, now lead is 207, lead is 207, then our nitrogen is 14, oxygen is 16, but the time you carry out all the addition, you know, the mathematics, so you arrive at 331 grams, then number of moles o...”