Thermodynamics basics — heat, work, energy

What you'll learn

1. 1

   Imagine rubbing your hands together fast 🔥 — they get warm! That's friction turning movement (work) into heat energy.

2. 2

   What type of energy do your hands feel after rubbing them?

3. 3

   This diagram shows a hot engine block 🔥. The heat from burning fuel does work — it pushes pistons that turn the wheels.

4. 4

   Let's work out: If 100 J of heat enters an engine and 40 J of that heat does work, how much heat is wasted?

5. 5

   Drag the slider to show how much heat is wasted if 200 J enters and 70 J does work.

6. 6

   If 150 J of heat enters a system and 50 J is wasted, how much work was done?

7. 7

   Match each energy form to its example: Heat, Work, Internal Energy.