To see how energy is saved in experiments, we can use different tools and methods to keep track of energy moving and changing. A closed system means nothing gets added or taken away—no energy or materials can come in or out.

1. Using Instruments:

• Calorimeters: These tools help us measure heat. They let us see how thermal energy changes.
• Spring scales: These are used to measure how much work is done on objects in the system.

2. Different Types of Energy:

It’s important to know about the various forms of energy like kinetic, potential, and thermal. Here’s a quick look:

• Kinetic Energy (KE): We can calculate this using the formula ( KE = \frac{1}{2}mv^2 ), where ( m ) is the weight of the object and ( v ) is how fast it is moving.
• Potential Energy (PE): This is found using the formula ( PE = mgh ), where ( h ) means how high something is.

3. Recording Data in Real-Time:

By using sensors and tools to record data, we can see how energy changes right as it happens. For example, when we look at a swinging pendulum, we can check the kinetic and potential energies during its swing. This helps us see the idea of energy conservation in action.

Conclusion

By carefully measuring and understanding the different types of energy, we can show how the law of conservation of energy works in real life, especially in closed systems.