Question

When we push a child in a swing, the amplitude of the oscillation

• A. decreases
• B. increases
• C. remains same
• D. none of the above

Answer 1

Answer: (B)

increases

By pushing a child on a swing a driving force is applied which forces the swing and the child in the forward direction. The gravitational force acts as a restoring force and pulls back the child to the original position. These two forces together set them into an oscillatory motion. By pushing the child the amplitude, that is the maximum displacement, increases.