Discover how mechanical energy—kinetic plus potential—remains conserved in systems under conservative forces. With real-world examples like roller coasters, this lesson simplifies a core law of classical mechanics.

Learn how to derive gravitational and elastic potential energy using the work-energy principle. Understand how conservative forces store and transform energy in physics systems like springs and gravity

“Forms of Energy” explains how potential energy, kinetic energy, and heat energy change into other forms of energy.

“Interconnected Ecosystems” explores interdependent relationships between living things in various biomes.

“Stored Energy” explains how potential energy is stored, how objects have potential energy, and how potential energy is changed to kinetic energy.

A video entitled “Energy of Roller Coasters” which describes how roller coasters use potential and kinetic energy to move.

Energy is all around us. There are two main types of energy - kinetic energy and potential energy. Kinetic energy is the energy of motion and potential energy is stored energy. In this video, we will cover both kinetic and potential...

In this physics science fair project, students will investigate the rebound height limits and linearity of dropped bouncy balls.

In a hydrogen atom, the electron is bound to the nucleus, so its energy is negative. This shows that it is in a bound state. When there is negative energy, it means that the electron is stable. It is inside the atom because its...

Gravitational potential energy is the energy of position and is based upon three factors: mass of object, gravity and the height of the object off the ground. In this video, you will learn how to use the formula GPE = mgh to solve for...

In this fun engineering challenge, your students will build rubber band-powered cars using the engineering design process and compete to see how far they can go.

Bohr's model of the atom says that an electron's energy is set by its orbit around the nucleus. Bohr said that electrons have specific, quantised levels of energy, and that the size of the orbit affects the energy...

The potential energy curve of the H₂ molecule illustrates how the energy of the system changes as the two hydrogen atoms approach or move apart. As the atoms come closer, the attractive forces between the positively charged nuclei and...

Chemical bonding explains how atoms combine to form molecules. It involves forces like ionic, covalent, and metallic bonds that hold atoms together, dictating the physical and chemical properties of substances.

Why shouldn't we throw garbage into the sun? Find out in this return of our series 'Astrum Answers'.

In this morning's lesson on LC circuits, we derive equations for charge, current, and energy as functions of time. Exploring the total potential energy in the circuit, we use the chain rule to find the second derivative of charge with...

Coefficient of restitution: What is it? How is it related to the general bounciness of balls and other objects? Here's a quick, simple and basic explanation of the coefficient of restitution for kids and laymen. Basketballs bounce a lot,...

Energy that is stored by an object because of its position.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

Find out how potential energy is stored and used with the example of a match.
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Physical processes - Energy and energy transfer - Energy
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Learning Points
Energy can b
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A team of cyclists attempts to provide all the power needed for a house for one day.
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Physical processes -Energy and energy transfer - W
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Kinetic


energy is...

Discover how flowing water can create electrical energy.
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Physical processes -Electricity and magnetism


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Learning Points
A hydroelectric power station produce
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electricity...

Discover what powers a wind-up radio.
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Physical processes -Energy and energy transfer -
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Learning Points

B

atteries produce chemical energy.

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Discover that energy comes in many different forms.
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Learning Points



Energy is the ability to do work.



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The sloth and the cheetah have different energy needs. This is reflected in their diet.
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Physical processes - Energy and energy transfer -
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Learning Points
Stored...