Physics is the search for the rules of the game, From the edge of the galaxy to a candle’s flame. It’s not just about numbers or a boring old graph, It’s the forces and the energy on every single path. Everything is moving or it’s pushing back hard, From a massive super-tanker to the bike in your yard. Don't fear the equations or the symbols in the mix, It’s just the universal toolkit that we use to fix. Let’s start with the Energy, it’s never really gone, It just changes its outfit and carries right on. It can’t be created and it can’t be destroyed, It’s just shifted around through the space and the void. You’ve got Kinetic for the movement, Potential for the height, Thermal for the heat and the power of the light. The total stays the same, that’s the law of the land, Like a handful of coins shifting hand to hand. Now talk about the Forces, the "push" and the "pull," The reason that a glass stays empty or full. Gravity is the anchor, the heavy-duty weight, Keeping your feet on the floor in a steady state. Then there’s Friction, the "grinder" that slows down the pace, Rubbing things together all over the place. Resultant Force is the winner of the tug-of-war, It’s the leftover push that moves you out the door. Then you’ve got Electricity, the flow of the spark, The invisible river that kills off the dark. Current is the "how much" is moving through the wire, Voltage is the "pressure" that’s setting it on fire. Resistance is the "obstacle," the gate in the way, Trying to stop the Electrons from having their day. In a Series circuit, they’ve only got one track, But in Parallel, they’ve got options to get there and back. Let's hit the Waves, the ripples and the sound, The way that information gets spread all around. Transverse waves go up and down like a rope, Longitudinal ones squish like a spring full of hope. Frequency is the "how often" they pass by your side, Amplitude is the "height" of the peak of the ride. Light is the fastest, the king of the speed, Nothing else in the universe can take the lead. Finally, the Matter, the "solids" and the "gas," And the Density hidden in every single mass. It’s how much "stuff" is packed into the space, Whether it floats on the water or sinks in the place. Physics is the logic, the "why" and the "how," From the start of the Big Bang to the here and the now. It’s the engine in the car and the moon in the sky, The only thing that happens when you don't even try.
