science
Grade-7
Easy

Question

The acceleration of a moving body increases. What could be the reason behind it?
A) Increase in the unbalanced forces
B) Decrease in the unbalanced forces
C) Increase in the balanced forces
D) Increase in the net force
E) Decrease in the net force

  1. Only b and e
  2. Only c
  3. Only a and d
  4. None is correct

hintHint:

Unbalanced forces cause accelerations.

The correct answer is: Only a and d


    • We know, F=ma.
    • As the force acting upon an object is increased, the acceleration of the object is increased. 
    • And in case of unbalanced forces, net force is non zero.
    • It causes acceleration.
    • So, the correct option is c.

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