Answer:
1. Pushing a large rock down a hill.
2. Kicking a stationary soccer ball.
3. Releasing a taut rubber band
I don't know how varied your class's examples of potential energy have been so far, but there are many kinds if you need more variety.
Step-by-step explanation:
You can just use your imagination for these if you want to! Potential energy is the energy that an object can have, its potential to have energy (just like it says), while kinetic energy is the energy of a moving object. All you need to do is take a still object and apply force to it.