Question

1. put the objects in #6 - 9 (potato, iphone, roller coaster, and water balloon) in order from least to greatest potential energy

Explanation:

Step1: Recall potential - energy formula

Potential energy \(PE = mgh\) (assuming gravitational potential energy near the Earth's surface). For the same height \(h\) and gravitational acceleration \(g\), potential energy is proportional to mass \(m\).

Step2: Compare masses

A water - balloon is usually the lightest among the given objects, followed by an iPhone, then a potato, and a roller - coaster is the heaviest.

Answer:

Water balloon, iPhone, potato, roller coaster