Real-life uses of work and energy transfer can be seen in many areas. Here are a few examples:

1. Transportation:

   • Cars use a lot of energy, about 8 to 15 megajoules for every kilometer they drive. They change chemical energy (from fuel) into movement energy.

2. Electricity Generation:

   • Hydropower plants take energy from falling water and turn it into electricity. They can be pretty efficient, working at about 70% to 90%.

3. Sports:

   • When athletes lift weights, they are transferring energy. For instance, if someone lifts 50 kilograms up 2 meters high, they use a specific amount of energy. We can calculate this energy using the formula: Work = Force × Distance.

4. Engineering:

   • Machines like cranes use work to lift heavy things. Just like before, we can figure out the work done with the formula: Work = Force × Distance.

These examples show how important it is to understand energy transfer and work in different areas of life.