Final answer:
In physics, energy can be stored or not stored in different situations. A spring compresses and returns to its original shape when released, indicating stored energy. On the other hand, a boat traveling through water doesn't move after stopping, indicating no stored energy. Similarly, an object lifted with a pulley drops down when the rope is released, showing stored energy.
Step-by-step explanation:
- Energy Stored: A spring compresses and returns to its original shape when released.
- Energy Not Stored: A boat travels through water (and air) and doesn't move after stopping.
- Energy Stored: An object lifted with a pulley drops down when the rope is released.
Learn more about Energy storage in different situations