Class 8 | Science | Ch 13 |Friction| NCERT Solutions 1. Choose the correct answer. Sound can travel through (a) gases only (b) solids only (c) liquids only (d) solids, liquids and gases. Answer: (d) solids, liquids and gases 2. Voice of which of the following is likely to have minimum frequency? (a) Baby girl (b) Baby boy (c) A man (d) A woman Answer: (c) A … [Read more...] about Chapter 13 Sound
friction
Chapter 12 Friction
Class 8 | Science | Ch 12 |Friction| NCERT Solutions 1. Fill in the blanks. (a) Friction opposes the _____________ between the surfaces in contact with each other. (b) Friction depends on the _____________ of surfaces. (c) Friction produces __________. (d) Sprinkling of powder on the carrom board ________ friction. (e) Sliding friction is ___________ than the static … [Read more...] about Chapter 12 Friction
Friction
Question 1 Name the force which always opposes motion? Question 2 What is the direction of force of friction acting on moving object? Question 3 Define the term friction? Question 4 When we try to push a heavy box kept on ground it does not move at all.Which force is preventing this box to move forward.Where does this force acts? Question 5 A ball moving on the … [Read more...] about Friction