Question

Which one has potential energy, a flying insect, a stretched elastic band, a falling stone, a flowing river and a coiled spring

Answer 1

A stretched elastic band and a coiled spring have potential energy due to their ability to do work when released, while a flying insect, a falling stone, and a flowing river exhibit kinetic energy due to their motion.

Step-by-step explanation:

Objects with potential energy are in positions where they have the potential to move due to a force. The examples given can be assessed for potential energy:

• A flying insect primarily has kinetic energy because it is in motion.
• A stretched elastic band has elastic potential energy because it can return to its original shape, doing work in the process.
• A falling stone has kinetic energy as it falls, but it had gravitational potential energy before it began to fall.
• A flowing river possesses kinetic energy due to its constant motion.
• A coiled spring, like the stretched band, stores elastic potential energy.

Hence, a stretched elastic band and a coiled spring have potential energy, while the other examples provided are demonstrating kinetic energy.