Potential energy | Energy | Middle school physics | Khan Academy

TL;DR

Potential energy is stored energy in an object due to its position and properties, and can be categorized into gravitational, elastic, electric, and magnetic potential energy.

Transcript

• [Narrator] Hello, everyone. Let's talk about potential energy. Potential energy is energy that is stored in an object, and this energy is related to the potential or the future possibility for an object to have a different type of energy, like kinetic energy for motion, that is converted from that potential energy. There are many kinds of potenti... Read More

Key Insights

• 🧘 Potential energy is stored energy that depends on an object's position and properties.
• 😥 Gravitational potential energy arises due to the force of gravity and an object's position relative to a reference point.
• 🍗 Elastic potential energy is associated with objects that can be deformed and have internal forces that try to restore their original shape.
• 🔌 Electric potential energy is related to the electric force between charged objects, while magnetic potential energy is related to the magnetic force between magnetic objects.
• 💁 Objects can have potential energy in different forms, such as gravitational, elastic, electric, and magnetic potential energy.
• 🧘 Potential energy is a valuable concept in physics and provides insight into the relationships between forces, positions, and energy transformations.
• 🅰️ The amount of potential energy can be calculated using specific equations depending on the type of potential energy involved.

Questions & Answers

Q: What is potential energy?

Potential energy is stored energy in an object that has the potential for a different type of energy in the future. It is related to the object's position and properties.

Q: What is gravitational potential energy?

Gravitational potential energy is the potential energy an object with mass has due to the force of gravity from another object with mass. It depends on the object's position relative to a reference point, often the Earth's surface.

Q: What is elastic potential energy?

Elastic potential energy is the potential energy some objects have due to a change in their shape. These objects, called elastic objects, have internal forces that try to return them to their original shape.

Q: How does electric potential energy work?

Electric potential energy is the potential energy a charged object has due to the electric force from another charged object. The amount of potential energy depends on the types of charges and their separation distance.

Summary & Key Takeaways

• Potential energy is energy stored in an object and is related to its potential for different types of energy in the future.

• Gravitational potential energy is the potential energy an object has due to the force of gravity.

• Elastic potential energy is the potential energy objects have due to changes in their shape.

• Electric and magnetic potential energy are related to the electric and magnetic forces between charged and magnetic objects.