NCERT solution for class 7|| Science || Chapter 13 Motion and Time
NCERT solution > class 7 > Science NCERT solution for class 7|| Science || Chapter 13 Motion and Time Chapter 13 Motion and Time Q1. Classify the following as motion along a straight line circular or oscillatory motion . i) Motion of your hands while running ii)Motion of a horse pulling a cart on a straight road . iii) Motion of a child in a merry go round . iv) Motion of a child on a see - saw v) Motion of the hammer on an electric bell . vi ) Motion of a train on a straight bridge Answer - i) Oscillatory motion . ii) straight line motion iii) circular motion iv) oscillatory motion v) oscillatory motion vi ) straight line motion . Q2. Which of the following are not correct . i) The basic unit of time is second ii) Every object moves with a constant speed iii) Distance between two cities are measured in kilometres . iv) The time period of a given pendulum is constant...