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Force and Pressure Summary: Force: Force Classification: Specific Non-Contact Forces: Pressure: Applications of Pressure: Pressure on Liquids: Applications of Liquid Pressure: Atmospheric Pressure: Astronauts and Space Suit: What is a Force?? Push or pull of an object is called as force. What are the effects of Force? Force can cause…
Define light? Define Reflection? Reflection is the phenomenon of bouncing back of light in the same medium in which it was travelling when it falls on the surface. Important terms Incident ray The Ray of light that falls on the mirror reflecting surface is called Incident ray. Point of incidence…
Class 8 Physics Chemistry Biology
Chapter 10: Visualising Solid Shapes Ex 10.1 1. For each of the given solid, the two views are given. Match for each solid the corresponding top and front views. 2. For each of the given solid, three views are given. Identify each solid corresponding Top, Front and side views? 3.…
List of all the Class 8 Maths Chapters Link Useful links: CBSE CLASS 6 SOCIAL SCIENCE CBSE CLASS 6 SCIENCE CBSE CLASS 7 SOCIAL STUDIES CBSE CLASS 7 MATHS CBSE CLASS 8 MATHS CBSE CLASS 8 SCIENCE
Ex 2.1 Solve the following equations: 1. x – 2 = 7 2. y + 3 = 10 3. 6 = z + 2 4. 3/7 + x = 17/7 5. 6x = 12 6. t/5 = 10 7. 2x/3 = 18 8. 1.6 = y / 1.5 9. 7x…
Ex 5.1 Data Handling 1. For which of these would you use a histogram to show the data? (a) The number of letters for different areas in a postman’s bag. (b) The height of competitors in an athletics meet. (c) The number of cassettes produced by 5 companies. (d) The…
Chapter 7: Cubes and Cube Roots Ex 7.1 1. Which of the following numbers are not perfect cubes? (i) 216 (ii) 128 (iii) 1000 (iv) 100 (v) 46656 2. Find the smallest number by which each of the following numbers must be multiplied to obtain a perfect cube. (i) 243…
Chapter 8:Comparing Quantities Ex 8.1 1. Find the ratio of the following. (a) Speed of a…
Chapter 9: Algebraic Expressions and Identities Ex 9.1 1. Identify the terms, their coefficients for each of the following expressions. (i) 5xyz2 – 3zy(ii) 1 + x + x2(iii) 4x2y2 – 4x2y2z2 + z2(iv) 3 – pq + qr – rp(v) + – xy(vi) 0.3a – 0.6ab + 0.5b 2. Classify the following polynomials as monomials,…