Energy and work are closely connected in simple machines. Understanding how they work together helps us see how these tools operate.

1. Definitions:

• Energy: This is the ability to do work. It comes in different forms. For example, there's kinetic energy (which is energy from movement) and potential energy (which is stored energy).
• Work: Work happens when a force moves something. You can calculate work using the formula:
  W = F × d
  Here, W stands for work, F is the force used, and d is the distance the object moves.

2. In Simple Machines: Simple machines help us do work more easily. Here are a couple of examples:

• Levers: These allow us to lift heavier things without using as much effort, which saves energy.
• Pulley systems: They change the direction of the force we use, making it easier to lift items.

Overall, energy gets changed and moved around, helping us complete tasks more easily and efficiently!