Gravitational Force and Fields
The lesson covers the concept of gravitational fields and the laws of gravitational force as proposed by Isaac Newton. It explains the relationship between masses and the distance between them in determining gravitational force.
- 13:35 “I'll have it to watch. I'll have it to be MV square X over R. It's equal to the force, giving to us, which is G, M1, M2, over R2. Now, I can take care of this. One of these can take care of this. Then, I'll have it to be...”
- 26:53 “watching, I am Emina Di Jong, see you next time.”
- 12:50 “Why artificial are man-made? SK Velocity. This is the minimal velocity required for an object to just escape from the gravitational influence. Now, from there, we have that word. That MV square X over R is equal to the f...”
Equilibrium of Forces
This lesson covers the concepts of static and dynamic equilibrium. It explains resultant and equilibrant forces, the moment of a force, and the conditions for equilibrium under non-parallel forces. The lesson also discusses the center of gravity and its effect on stability.
- 21:11 “times the distance between the force and A. The force is 30 times distance between 30 and A. Is 6. This time between 30 and A is 6. Most be equal to another force, that's force F. Times the distance between F and E or A....”
- 24:48 “unlike the example that we did. Thank you for watching. My name is Mr. Bakari. Till next time.”
- 17:48 “So let's look at it. Now this force times the distance between the force and the full crew. We don't know the force, that's what we're looking for. Times, now the distance between the force and the full crew is 50 on red...”
Work, Energy and Power
This lesson covers the definitions of work, energy, and power. It includes calculations for work done, gravitational potential energy, and power in watts. The lesson also distinguishes between kinetic and potential energy and explains energy transformation and the law of conservation of energy.
- 06:35 “Another example, where we have a force of 18,000 Newton, which moves a body through a distance of 17 m. And the direction of the force. Force to calculate the work done, that would be force multiplied by distance. And th...”
- 04:00 “And that is 300 Jews or 300 Newton-Meta. Another example, where we have situations in which a force is applied to a body at an inclined angle theta. The formula will change a little bit. And that would be F multiplied by...”
- 07:24 “These are the ways by which we can solve problems under work. Like I explained earlier, we have our force inclined at Angutita, which we have explained. And another one is situation where we have a body, raised to a part...”
Magnetic Fields
This lesson covers the concept of magnetic fields, including types of magnets such as bar magnets. It explains the flow of magnetic forces from the North pole to the South pole and the principles of attraction and repulsion between magnets. The lesson also touches on how to create a magnet and the c
- 33:44 “Now, we have that our force is given. Let's make use of our calculator. We have 1.6 times 6.7 times 10. Now, give us 1.7.2 times 10 times 10 times sin 80.”
- 34:35 “Then, we have this to be f is equal to 10 times 7.2 times teris per minus 10 times sin 80. From here, we have the force is equal to this point 2. Now, we have to get sin 80 times this sin 80. Because our calculator does...”
- 23:49 “The force is very weak because no matter if the pin, the chain is wrong. The one at the end, you have less power to attract. All right, let's talk about concepts of magnetic force. We said, is the region where magnetic f...”
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.
- 01:44 “Now, for that force to act, it means that this person must have an energy which he has told that allows him this force to act on that rod and this bucket is lifted. What does it mean? It means that a particular form of e...”
- 04:03 “This displacement is talking about the distance covered in any given direction. And like I said, there is an exception when the force acts perpendicularly to the direction of its force. An example is a man who is pushing...”
- 00:50 “Then the third one is to be able to explain the concepts of potential kinetic energy which are the two forms of mechanical energy. Then the last objective is to be able to solve calculation problems that arise from probl...”