Скачать или смотреть TNUSRB SI - PC Exam 2025 8ம் வகுப்பு இயற்பியல் முக்கிய வினாக்கள் தொகுப்பு One Video Revision Part-1

🎯 TNUSRB SI & PC Exam 2025 Special Video

இந்த வீடியோவில் 8-ம் வகுப்பு இயற்பியல் முக்கிய வினாக்கள் ஒரே வீடியோவில் தொகுக்கப்பட்டுள்ளன.

போலிஸ் தேர்வுக்கான அனைத்து முக்கிய கேள்விகளும், தேர்வு நோக்கில் முழுமையான விளக்கத்துடன் வழங்கப்பட்டுள்ளது.


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8-ம் வகுப்பு இயற்பியல் முக்கிய வினாக்கள்


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Quick Revision for TNUSRB SI & PC Exam



👮‍♂️ Useful for: TNUSRB SI, PC, TNPSC Group Exams, SSC, RRB Aspirants


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8th Physics Important Questions – TNUSRB SI & PC Exam

Lesson 1: Measurement

1. What is measurement?


2. Define physical quantity.


3. What are the fundamental quantities?


4. What is the SI unit of length, mass, and time?


5. Define least count.


6. Define accuracy and precision.


7. What is the difference between scalar and vector quantities?




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Lesson 2: Force and Pressure

1. Define force.


2. What are the effects of force?


3. Define pressure and give its formula.


4. What is the SI unit of pressure?


5. What is atmospheric pressure?


6. Define buoyant force.


7. Why does a sharp knife cut better than a blunt one?




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Lesson 3: Light

1. Define reflection of light.


2. State the laws of reflection.


3. What is a periscope?


4. Define refraction of light.


5. What is the difference between concave and convex mirrors?


6. Define focal length and principal focus.


7. What is the mirror formula?




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Lesson 4: Heat

1. Define heat and temperature.


2. State the modes of heat transfer.


3. What is conduction?


4. What is convection?


5. What is radiation?


6. What is a good conductor?


7. Define specific heat capacity.




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Lesson 5: Electricity

1. Define electric current.


2. What is the SI unit of current?


3. Define potential difference.


4. What is Ohm’s law?


5. Define resistance and its unit.


6. Define conductor and insulator.


7. What is a simple electric circuit?
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