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.
- 02:29 “We have our EMF here, we have our EMF, we have our EMF, we also have EMF here, we also have the EMF. This is it. Now, we'll talk about current electricity. Current electricity, now we'll talk about the terminology on tha...”
- 28:54 “Okay, let's see. Now, application of electrolysis is applied in several industries, for example, in the electrolyte plates of metals and in pure metals. Now, on the electrolyte plates, this is the process of costing a me...”
- 38:08 “Now, let's use our calculator, let's use our calculator. Now, we have 8 divided by 7.5, will give us 1.066. So, let's approximate towards 1.07 ampere. So, the current is equal to 1.07 ampere. Does the first question? Now...”
Work, Energy and Power
This lesson covers the definitions of work, energy, and power. It explains potential and kinetic energy as forms of mechanical energy. The lesson also includes calculations related to work done and the concept of power as the rate of doing work.
- 05:43 “What do I mean? Energy can be transferred from mechanical to heat, heat to mechanical, from light to heat, light to electrical or whatever. And it is also measured in Joe's meaning it has the same units as work done. And...”
- 00:00 “Hello students, my name is Uche Ugo, the subject is basic science and I will be taking the topic work energy and power. At the end of this lesson, I would expect each student to have achieved several objectives. The firs...”
- 19:16 “These are some questions to test your knowledge on the teaching of today. Number one says, what is the condition for a body to be able to work? The second question says, when is it possible for a body to do work while co...”
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.
- 11:53 “So energy or work done is force times distance and force is major in Newton, why distance is major in words in meter. So it's having an equivalent. Sometimes if you don't see it as new thing meter, it is usually within u...”
- 04:44 “Sometimes can be measured in gram, but the standard unit is the kilogram, which is KG as symbol, the time, which is a function of everything, is measuring second, and the symbol is what is of X. The temperature of an obj...”
- 26:16 “and the fifth one resistance of the resistor and the last one, which is capacitance of capacitor. Thank you for watching. My name is Tijani Musa, Ola de Krupo. See you next time.”
Metals and their compounds
This lesson covers the characteristics of metals, including their ability to lose electrons and form positive ions. It discusses the classification of metals, their physical properties, and examples of common metals such as sodium, magnesium, and aluminum. The lesson also includes information on the
- 15:30 “So to balance the equation, you can put two here now. So for a cathode now, the reaction that cathode, cathode is negative pole by which electrons enter the electrolyte. Remember that light charges repair on light charge...”
- 14:44 “because oxidation takes place at the anode comes to the cathode. That is the electron that is used for cathodic reduction. For example, for electrolysis of pure bobsite, aluminum is obtained free nature in this form as a...”
- 20:28 “should be able to answer these questions. Number one, explain the term matters with two examples. All right, so an equation to show how a matter can lose electron or electrons to become positively charged. Then question...”