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Define Friction?? What are the Causes of Friction?? Write a short note on Spring Balance?? Working Principle: List the various types of Friction?? There are Three types of friction Static friction: The opposing force that comes when one object tends to move over the surface of another but the actual…
Grade 8, Science- Chemistry Embark on a fascinating journey into the realm of the chemical effects of electric current in this lesson. 1. Define Electrical energy? 2. Difference between Conductors and Insulators? Conductors Insulators Materials that allow electricity to flow through them easily are called as Conductors Materials that do…
Ncert Class 8 Chapter 1: Rational Numbers Hand notes (Click on the sums to get the answers) Ex 1.1 Rational Numbers Using appropriate properties find i) -2/3 * 3/5 + 5/2 -3/5 + 1/6 ii) 2/5 + (-3/7) -1/6 * 3/2 + 1/14 * 2/5 2. Write the additive inverse…
Ex 3.1 1. Given here are some figures. Classify each of them on the basis of the following. (a) Simple curve (b) Simple closed curve (c) Polygon (d) Convex polygon (e) Concave polygon2. What is a regular polygon?State the name of a regular polygon of(i) 3 sides (ii) 4 sides…
Chapter 13: Direct and Inverse Proportion Ex 13.1 1. Following are the car parking charges near a railway station up to 4 hours ₹60 8 hours ₹100 2 hours ₹140 24 hours ₹180 Check if the parking charges are in direct proportion to the parking time 2. A mixture of…
Chapter 14: Factorisation Ex 14.1 1. Find the common factors of the given terms. First 6 sum link (i) 12x, 36 (ii) 2y, 22xy (iii) 14 pq, 28p² q² (iv) 2x, 3x² , 4 (v) 6 abc, 24ab², 12 a²b (vi) 16 x³, – 4x², 32x (vii) 10 pq, 20qr,…