Potential energy examples in everyday life.

📚 Quick Study Guide

• ⛰️ Potential energy is stored energy that an object has due to its position or condition.
• 🍎 Gravitational potential energy is calculated as $PE = mgh$, where $m$ is mass, $g$ is the acceleration due to gravity (approximately $9.8 m/s^2$), and $h$ is height.
• 🏹 Elastic potential energy is stored in objects that can be stretched or compressed, such as springs and rubber bands.
• 🎢 The higher an object is, the more gravitational potential energy it has.
• 🧲 Potential energy can be converted into kinetic energy (energy of motion).

🧪 Practice Quiz

1. Which of the following is the best example of gravitational potential energy?
   1. A rolling ball.
   2. A book on a shelf.
   3. A speeding car.
   4. A lit lightbulb.
2. A stretched rubber band possesses what type of potential energy?
   1. Chemical potential energy.
   2. Gravitational potential energy.
   3. Elastic potential energy.
   4. Nuclear potential energy.
3. As a roller coaster car climbs to the top of a hill, what happens to its potential energy?
   1. It decreases.
   2. It increases.
   3. It remains constant.
   4. It transforms into kinetic energy.
4. Which of the following factors does NOT affect gravitational potential energy?
   1. Mass.
   2. Height.
   3. Velocity.
   4. Acceleration due to gravity.
5. A compressed spring in a toy stores what kind of energy?
   1. Kinetic energy.
   2. Elastic potential energy.
   3. Thermal energy.
   4. Chemical energy.
6. When is gravitational potential energy typically at its maximum?
   1. Just before an object hits the ground.
   2. When an object is at its lowest point.
   3. When an object is at its highest point.
   4. When an object is moving fastest.
7. What happens to the potential energy of a swing as it reaches the highest point of its arc?
   1. It is converted entirely into kinetic energy.
   2. It is at its maximum.
   3. It is at its minimum.
   4. It remains constant throughout the swing's motion.