8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 13/05/2022
QB365 provides detailed and simple solution for every Book back Questions in class 8 Science Subject. It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 8th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Why are heavy bags provided with broad straps?
2.
Name two instruments, which help to measure the pressure of a fluid.
3.
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
4.
Give two examples to verify that a force tends to change the static condition of a body.
5.
In a hydraulic lift, the surface area of the input piston is 10 cm2. The surface area of the output piston is 3000 cm2. A 100 N force applied to the input piston raises the output piston. Calculate the force required to raise the output piston.
1.
i) For giving a lower pressure on the shoulders
ii) Thus providing a larger area of contact with the shoulders.
2.
The instruments Manometer, Bourdon gauge help to pressure of a fluid.
3.
I feel hotness. When an iron nail is hammered into a wooden plank, heat is liberated due to friction.
4.
i) When a kicking force is exerted on a football at rest, it raises.
ii) When a pushing force is applied on a box at rest it moves.
5.
By Pascal's principle
\(\frac { { F }_{ 1 } }{ { A }_{ 1 } } =\frac { { F }_{ 2 } }{ { A }_{ 2 } } \)
F1 - Force of the input piston
F2 - Force of the output piston
A1 - Surface area of the input piston
A2 - Surface area of the output piston
F1 = 100N, A1 = 10 cm2, A2 = 3000 cm2, F2 =?
\(\frac { 100 }{ 10 } =\frac { { F }_{ 2 } }{ 3000 } \)
F2 = \(\frac { 100x3000 }{ 10 } \)
F2 = 30,000N
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
