A child is pushing another child on a swing. The child isn’t swinging very high. Then a parent takes over and pushes the child on the swing. The child starts to swing higher.

Question

Which choice best describes the change in force and motion?

Responses

The parent applies less force on the swing, so the child’s forces decrease.
The parent applies less force on the swing, so the child’s forces decrease.

The parent applies more force on the swing, so the child’s motion decreases.
The parent applies more force on the swing, so the child’s motion decreases.

The parent applies less force on the swing, so the child’s motion increases.
The parent applies less force on the swing, so the child’s motion increases.

The parent applies more force on the swing, so the child’s motion increases.
The parent applies more force on the swing, so the child’s motion increases.

Answer 1

The correct choice that best describes the change in force and motion is:

The parent applies more force on the swing, so the child’s motion increases.

This reflects the idea that by applying more force, the swing gains greater momentum, allowing the child to swing higher.