Question

Choose the term to fill in the blanks.
(a) ...... has to be applied to change the ..... of a ...... object.
(moving, direction, force)
(b) When an elephant drags a wooden log over the land, the forces that are applied on the log are ...... , ....... and ........ .
(muscular force, mechanical force, gravitational force, frictional force)
(c) A ball was set rolling on a large table. If its ...... is to be changed, a ........ will have to be applied on it.
(force, motion, gravitation)
(d) The force of friction always acts ........ the motion.
(along, against)

Answer 1

(a) Force has to be applied to change the direction of a moving object.
(b) When an elephant drags a wooden log over the land, the forces that are applied on the log are muscular force , gravitational force and frictional force.
(c) A ball was set rolling on a large table. If its motion is to be changed, a force will have to be applied on it.
(d) The force of friction always acts against the motion.