Học tốt Vật lý lớp 9

Instruction for Good Study 9th grade Physics study and complete homework

Posts 2. Resistance of wires - The law of hugging

Lesson 3. Practice: Determining the resistance of a wire by ammeter and voltmeter

Lesson 4. Serial circuit

Lesson 5. Parallel circuit

Lesson 6. Exercise to apply the law of hugging

Posts 7. Dependence of resistance on conductor length

Problem 8. Dependence of resistance on the conductor cross-section

Lesson 9. Dependence of resistance on conductor materials

Lesson 10. Varistor - Resistor used in engineering

Exercise 11. Exercise on Ohm's law and the formula for calculating the resistance of wires

Lesson 12. Electrical capacity

Lesson 13. Electricity - The power of electric current

Lesson 14. Exercise on electrical power and electric energy use

Lesson 16. The laws of Jun - Lenz

Exercise 17. Exercises to apply the laws of Jun - Lenz

Lesson 18. Practice: Testing the relationship Q ~ I ^ 2 in Jun-law's law

Lesson 19. Safe and economical use of electricity

Lesson 20. Summary of chapter I: Electricity

Test 15 minutes - Chapter 1 - Physics 9

Test 45 minutes (1 period) - Chapter 1 - Physics 9

CHAPTER II. ELECTRICAL LEARNING

Lesson 21. Permanent magnets

Lesson 22. Magnetic effects of electric current - Magnetic field

Lesson 23. Spectrometer - Magnetic field lines

Exercise 24. The magnetic field of a wire tube has electric current

Lesson 25. The infection from iron, steel - electromagnet

Lesson 26. Application of magnets

Lesson 27. Electromagnetic force

Lesson 28. Electric motors of direct current

Lesson 29. Practice: Making a permanent magnet, testing the magnetism of electric wire tube

Lesson 30. Exercise using the right fist rule and the left hand rule

Lesson 31. The phenomenon of electromagnetic induction

Lesson 32. Conditions for induction current

Lesson 33. Alternating current

Lesson 34. Alternator generator

Lesson 35. Effects of alternating current - Measurement of amperage and voltage

Lesson 36. Power transmission goes away

Lesson 37. Transformers

Lesson 38. Practice: Operating generators and transformers

Lesson 39. Summary of chapter II: Electromagnetism

Test 15 minutes - Chapter 2 - Physics 9

Test 45 minutes (1 lesson) - Chapter 2 - Physics 9

TERM OF TEST 1, (Tests of Term 1) - Physics 9

CHAPTER III. OPTICS

Lesson 40. The phenomenon of light refraction

Problem 41. Relationship between angle of incidence and angle of refraction

Lesson 42. Converging lenses

Lesson 43. Image of an object created by focusing lens

Lesson 44. Divergent lenses

Lesson 45. Image of an object created by a diverging lens

Lesson 46. Practice: Measuring the focal length of a focusing lens

Lesson 47. Creating images in the camera

Lesson 48. Eyes

Lesson 49. Eyes near and old eyes

Lesson 50. Magnifier

Lesson 51. Optical geometry exercise

Lesson 52. White light and colored light

Lesson 53. The analysis of white light

Lesson 54. The mixing of colored light

Lesson 55. Color of objects under white light and under colored light

Lesson 56. The effects of light

Lesson 57. Practice: Identify monochromatic and non-monochromatic light with a CD

Lesson 58. Summary of chapter III: Optical

Test 15 minutes - Chapter 3 - Physics 9

Test 45 minutes (1 period) - Chapter 3 - Physics 9

CHAPTER IV. CONSERVATION AND ENERGY TRANSFORMATION

Lesson 59. Energy and energy metabolism

Lesson 60. The law of conservation of energy

Lesson 61. Electricity production - Thermal power and hydroelectricity

Lesson 62. Wind power - Solar power - Nuclear power

Test 15 minutes - Chapter 4 - Physics 9

Test 45 minutes (1 lesson) - Chapter 4 - Physics 9

TERM OF TEST 2, (TEST QUESTION 2) - MATERIAL 9