Chapter 5: Exploring Forces - Solutions
Exploring Forces - Solutions Chapter 5: Exploring Forces - Solutions Question 1 Match items in Column A with the items in Column B. Column A (Type of force) Column B (Example) (i) Muscular force (b) A child lifting a school bag (ii) Magnetic force (e) A compass needle pointing North (iii) Frictional force (a) A cricket ball stopping on its own just before touching the boundary line (iv) Gravitational force (c) A fruit falling from a tree (v) Electrostatic force (d) Balloon rubbed on woollen cloth attracting hair strands Question 2 State whether the following statements are True or False. (i) A force is always required to change the speed of motion of an object. True . (ii) Due to friction, the speed of the ball rolling on a flat ground increases. False . (iii) There is no force between two charged objects placed at a small distance apart. False . Question 3 Two balloons rubbed with a woollen cloth are brought near each other. What would happen and why? Answer: When the two balloons are rubbed with a woollen cl…