Physics 9 Lesson 62: Wind power - Solar power - Nuclear power 1. Theoretical Summary 1.1. Wind generator Wind energy is the kinetic energy of air moving through the Earth's atmosphere. - The propeller is attached to the rotating shaft of the generator's rotor. The stator is the electric coil. The blowing wind imparts mechanical energy to the … [Read more...] about Physics 9 Lesson 62: Wind power – Solar power – Nuclear power
Grade 9 Physics
Physics 9 Lesson 61: Power generation – thermal and hydroelectric power
Physics 9 Lesson 61: Power generation - thermal and hydroelectric power 1. Theoretical Summary 1.1. The role of electricity in life and production Electricity is easily converted into other forms of energy. Electrical energy converted to mechanical energy Electricity converted to heat Electrical energy converted into light … [Read more...] about Physics 9 Lesson 61: Power generation – thermal and hydroelectric power
Physics 9 Lesson 60: Law of conservation of energy
Physics 9 Lesson 60: Law of conservation of energy 1. Theoretical Summary 1.1. Energy transformation in mechanical, thermal, and electrical phenomena a) Convert potential energy into kinetic energy and vice versa. Loss of energy - In mechanical processes, mechanical energy is always reduced, the lost mechanical energy has been converted into heat … [Read more...] about Physics 9 Lesson 60: Law of conservation of energy
Physics 9 Lesson 59: Energy and energy transformation
Physics 9 Lesson 59: Energy and energy transformation 1. Theoretical Summary 1.1. Energy 1.2. Types of energy and the energy transfer between them. a) Energy forms and energy transformation - All transformation processes in nature are accompanied by the transformation of energy from one form to another. - We can recognize forms of energy … [Read more...] about Physics 9 Lesson 59: Energy and energy transformation
Lý 9 Bài 58: Tổng kết chương III Quang Học
Lý 9 Bài 58: Tổng kết chương III Quang Học 1. Tóm tắt lý thuyết 1.1. Hiện tượng khúc xạ ánh sáng a) Hiện tượng khúc xạ ánh sáng - Hiện tượng tia sáng truyền từ môi trường trong suốt này sang môi trường trong suốt khác bị gãy khúc tại mặt phân cách giữa hai môi trường được gọi là hiện tượng khúc xạ ánh sáng. - Tia sáng truyền từ môi … [Read more...] about Lý 9 Bài 58: Tổng kết chương III Quang Học
Reason 9 Lesson 57: Practice Recognizing monochrome and non-monochromatic light with a CD
Physics 9 Lesson 57: Practice Recognizing monochrome and non-monochromatic light with a CD 1. Theoretical Summary 1.1. Experiment purpose Knowledge: Answer what is monochromatic light, what is non-monochromatic light. Skills: Know how to use a CD to recognize monochromatic and non-monochromatic light. Attitude: Know how to work independently to conduct experiments … [Read more...] about Reason 9 Lesson 57: Practice Recognizing monochrome and non-monochromatic light with a CD
Reason 9 Lesson 56: The effects of light
Physics 9 Lesson 56: The effects of light 1. Theoretical Summary 1.1. Heat effect of light - Light hitting objects will heat them up. The light energy is then converted into heat energy. That is the heat's use of light. In the heat effect of light, dark colored objects absorb light energy more strongly than light colored … [Read more...] about Reason 9 Lesson 56: The effects of light
Physics 9 Lesson 55: Color of objects under white light and under colored light
Physics 9 Lesson 55: Color of objects under white light and under colored light 1. Theoretical Summary 1.1. White object, red object, blue object and black object under white light Under white light, any colored object will have that color light transmitted to our eyes, (except for black objects). We call the color of the object. White objects are … [Read more...] about Physics 9 Lesson 55: Color of objects under white light and under colored light
Physics 9 Lesson 54: Mixing colored lights
Physics 9 Lesson 54: Mixing colored lights 1. Theoretical Summary 1.1. What is mixing colored lights together? Two or more colored lights can be mixed together by shining the beams at the same spot on a white screen at the same time. The color of the screen in that is the color that we get when we mix the aforementioned colored lights … [Read more...] about Physics 9 Lesson 54: Mixing colored lights
Physics 9 Lesson 53: The analysis of white light
Physics 9 Lesson 53: The analysis of white light 1. Theoretical Summary 1.1. Analysis of a beam of white light using a prism - Experiment: Shine a beam of white light through a narrow slit to the prism. Observe the resulting color band on the screen. a. In turn, in front of the light slit, a red filter, then a blue filter. b. Block the light slit … [Read more...] about Physics 9 Lesson 53: The analysis of white light