Distance and Displacement
This lesson explains the concepts of distance and displacement in translational motion. It covers how to measure distance without considering direction and how displacement includes both distance and direction. The lesson also discusses the position of an object in relation to a reference point.
- 11:58 “workshop or to get something like a wire from most of these people that sell it, they use the ant, the ant ants to measure. Although sometimes it is not always accurate, but they already give it a value to it. But in the...”
- 15:09 “So the next one is caliper. Caliper is another interesting and important measuring device and is having an accuracy of about 0.001. What this implies is that a caliper measure more accurate than the tape and the ruler. F...”
- 10:27 “And as such, there are so many things that can be measured about the length of an object. We might be interested in the thickness, we might be interested in the depth sometimes or the height. So measuring the distance of...”
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.
- 18:06 “that we take. So object of this size, the object that we can use to measure it accurately is the physical balance. And this is normally used in pharmaceutical and the most times in the lab. The digital balance, this is t...”
- 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...”
- 14:59 “So in large quantity, we have tons. You understand, we can have bag of cement, more than 50 kg. So in that case, we measure it in tons. So we can use some of these measuring devices to do that. But if we are measuring ve...”
Introduction to Trigonometry
This lesson covers the basic concepts of trigonometry, including the measurement of angles and the definition of trigonometric functions. It explains the types of angles, the use of protractors for measuring angles, and the concept of quadrants in relation to angles. The lesson also introduces plane
- 06:12 “And without four quadrants, we can know where a value of sine, cosine, or tangent can be positive or negative based on the values of the angles given. OK. How do we measure angles? The size of any angle is determined by...”
- 14:56 “It's sentinel sends 60 degrees, 30 divided by 60. So that means we have 61 over 2 degrees. 61 over 2. Because 30 cancels this, we have 1 over 2. So that is a way of converting from minutes to degree. And that is their re...”
- 25:19 “10 kilometer within the short time. So therefore, the total distance cover will not be equal to 10 multiplied by 10 seconds divide, convert to hours. That would be 10 over 3,600. So we have 100 divided by 3,600. So 0,000...”
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.
- 28:34 “all over 100, value of observation, and our p 20 now is going to be 20 n all over 100, and our n is 10, so we have 20 times 10 all over 100, so this is going to be the second value of observation, so p 20 is going to be...”
- 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...”
- 10:24 “So therefore, summation f x equals 84, y summation f equals 30. So we have mean x bar to be 84, all over 30. And that will give us 2.8. When we are going to the nearest one number, we have 3. So therefore, what mean x ba...”
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
- 11:03 “It would be, longest sides of first, that the longest sides of the first one, longest sides of the first, that is bigger, over the longest sides of the smaller one, that is one that is smaller of the smaller. So, now, wh...”
- 22:46 “384 centimeter square, the first, the second, now if we look at this carefully, we will arrive at the area of the first, area of the second, now how do we compare, remember we said if you are comparing, the bigger one is...”
- 11:57 “smaller one, what longest side of the smaller one, that's 9. Because of this point, decimal place, you multiply by 10. So, when you multiply, because of the decimal place, to take it off, you are going to be having 2.5,...”
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.
- 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...”
- 08:49 “We have principal potential meter, now this is a device that is prepared to measure potential difference. It is apparatus commonly used to measure and or to compare the EMF, to compare EMF. It can also want to compare th...”
- 03:25 “Ammeter, we said ammeter is a device used to measure the currents, and it's an ID, ammeter almost half negligible resistance, I must be connected in series to the circuits. We have the potential difference, which is also...”