If your on the wrestling team you play a sport. Conditional.
If you play a sport, your on the wrestling team. Converse.
Converse is false because there are way more sports than just wrestling.
If you slap a child, they will feel pain. Conditional
If a child is in pain, it was slapped. Converse.
Converse is falls because getting slapped isn’t the only source/ reason for pain.
If your phone is on the battery is depleting.Conditional
If your phone battery is depleting, your phone is on. Converse
In this case, both makes sense. Since your using your phone and the phones power source is the battery, you are draining said phone of power.