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
- 02:22 “zoom out. So if they are similar, I could zoom one in and the other will be zoom out. So, proportion, two shapes are similar in proportion, if all the dimensions are of the same ratio. Remember, sides, talking about prop...”
- 07:54 “same proportion. You pick an object, ask you an example. I have this is the object, I decide to enlarge it to this. I have another enlarged one to this. Now, what we observe, enlargement, I could have A, B and C, enlarge...”
- 24:32 “smaller one, square, the bigger one is multiplied 4 times the smaller one, but in this proportion, this 4 can say 2 is to power 2, multiplied by water by 96 centimeter square, remember what's okay, as scalar factor is gi...”
Electric Cells and Current Electricity
The lesson covers the types of electric cells, including primary and secondary cells. It explains the concepts of electromagnetic force, current electricity, potential difference, and resistance. The arrangement of cells in series and parallel is also discussed.
- 29:45 “Remove this proportionality sign, we have z q. q is equal to what? The electricity, which is what? i, c, y, z is the constants, which you have that word, m is equal to z, i, c. Nice. We have it here. Now, the second law...”
- 10:32 “Now, we have this from the resistivity, we have resistivity is direct proportional to the length and inversely proportional to the area. That is, we have this by removing this proportionality sign, we have, which is equa...”
- 09:45 “And the next one, we have the area, that means the resistance is inversely proportional to the area. Now, also, we are also told that what that temperature can also affect the resistivity, that means the increase in temp...”
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.
- 02:39 “plot the graphical presentation of Boyz Law forming. Chast Law is the next law. This shows the relationship between volume and temperature. And Chast Law states that the volume of the giving mass of gas is directly propo...”
- 20:25 “inversely proportional to the square root of its density. This is also, it can also be stated that at a particular temperature and pressure, the rate of the evolution of the gas is inversely proportional to its relative...”
- 21:14 “If you cross multiply, you're going to have rate, it also constant means that as long as you have many rates of diffusion and as long as there are many densities, you can't be comparing them. And then to represent this t...”
Trigonometric Ratios
This lesson covers the identification of sine, cosine, and tangent of an acute angle. It explains how to apply these trigonometric ratios to solve problems involving distances and lengths in right-angled triangles. The relationship between the sides and angles of triangles is also discussed.
- 12:39 “aspect of the evolution. After solving those two, we do the individual evolution where you expected to rule apply. Now a person standing at a point A, this, a sign at a point A, and looking up at a satellite dish at the...”
- 14:14 “that is given, then your hypotenuse. So, I could read, you could know, the particular one to apply. They are designed to cause all the time. Thank you very much. We've come to the end of the class. My name is Oyase Sunda...”
- 07:32 “stands at point A. Looking at a bed sitting at the top of a tree at point B. Stand at point A, looking at the bed sitting at the top of the tree at point B. The height of the tree is S m. Point A is 7.14 m away from the...”
Measures of Central Tendency
This lesson covers the measures of central tendency, including mean, median, and mode. Students will learn how to calculate these measures using given data sets. The lesson also explains how to handle data with and without frequency.
- 27:41 “all over F, 4, everything times 2, we have 4 plus 4 all over 4 times 2, so this would be, if you consider this we have 1, so 1 times 2, that would be 4 plus 2, and that is 6, so therefore, our d 7, the 7's total, d 7, wh...”
- 23:20 “value. And that is give us 2, and that is give us 2, that is give us 2. So frequency is 2, so therefore our Q3 and our C is the class, is the class width, which is also 2. How do we find the class width? That the differe...”
- 24:14 “all over 2 times 2, and that will give us 6 plus 7.5 minus 7 will give us 0.5. So 0.5 all over 2 times 2, this we can't do this, so we have 6 plus 0.5 and that is 6.5. So therefore our Q3 is 6.5. Now, how to find the 7's...”
Rational and Non-Rational Numbers
This lesson covers the identification of rational and non-rational numbers. It explains the characteristics of different number sets, including natural numbers, whole numbers, and integers. The lesson also discusses the significance of the number PI in relation to circles.
- 07:13 “That gives us the misfraction. So if I have an example, I have 1, O number, 3 over 2. This is a misfraction. I call this a misfraction. In the sense that you can see that it's a combination of both O numbers and what? An...”
- 16:41 “Now, look at that question number 2. We have question number 2. Question number 2 says, calculate the ratio of the area to the square of the radios. Calculate the ratio of the area to the square of the radios. Now, how d...”
- 15:03 “So I put it. So simply, move it. I have my pie is what my circumference is given. The circumference is given in 62.832 over what's my radios? My radios is 10. That is 10. Now, I have 2 radios makes 1 diameter. That's tim...”
Factors of Production
The lesson covers the concept of production and its types. It explains the factors of production, division of labor, and specialization. The advantages and disadvantages of division of labor and large scale production are also discussed.
- 28:41 “have a t-shirt in the same color, same shapes, same size, same everything and you have like a million pieces of it because the labor was divided and it was done very fast. And then the vision of labor also brings about e...”
- 29:30 “capacity resulting in the increase of outputs and the decrease in the cost of production. What does this mean? Scale of production is growth of when when when a firm on industry is able to increase how much it's producin...”
- 00:00 “Hello guys, welcome to this lesson and this is economics where SS1, my name is Cornelius and I'm your instructor and today's in this lesson we'll be talking about theory of production and in our lesson we're going to be...”
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.
- 25:24 “So the last one is in terms of units, the unit of mass is kilogram and that of weight is newton. Evaluation, divine, fundamental and the life quantity in your own language to the best of your knowledge. So explaining tha...”
- 11:04 “should you come across it in another textbook for further research. Pleasure. Pleasure is given as force per unit area. So the force of an object over the area, don't forget that the force is the same thing as weight. Th...”
- 09:28 “We have the acceleration, acceleration is usually changing velocity over time taking and the unit is meter per second squared. The weight of an object is the total of the mass and the acceleration due to gravity. And thi...”
Factorization of Algebraic Expressions
This lesson covers the factorization of simple algebraic expressions and quadratic expressions. It includes methods for identifying factors and solving related word problems.
- 26:04 “It would be twice the number of girls, so that would be 120 times two. So, 120 times two, that would give us 240. So, when you had 240 plus 120, it would give you 360, total number of students in the school. What problem...”
- 22:49 “There are twice as many boys as there are girls. Now, every word problem gives you an insight to what you want to do. But technique, that means in that school, there are boys and there are girls. But there are twice as m...”
- 02:19 “and signs are in the two. So, when the sign comes in, it's factorization. That is, if you are grouping them to the way they belong or you are trying to collect them together. So, factorization, we have factorize 5xy plus...”
Cost of Production
This lesson covers the concept of cost in economics, focusing on the cost of production. It explains different types of costs, such as fixed and variable costs, and discusses the factors of production that contribute to overall costs.
- 24:19 “multiply by words, the quantity, the quantity is the same thing as the output, so it trades it to your A, okay, trades it to your A, what do you have, three, so six times three, give us what, 18, and that's how you have...”
- 25:58 “okay, over changing quantity, anything marginal, the first line is always dash, you can see, here, for the first unit is dash, so you start from the second one, very easy, even without capital it or you can do this, just...”
- 22:42 “a, b, c, d, a, and f towards, to high, so we need towards, we need to get the missing figure, how do they get this missing figure, a, b, c towards, to i, how do you calculate it, so without wasting time, let's go to the...”