Physics

### The Physics Philes, lesson 125: Timmy Fell Down the Potential Well

Everything we come into contact with on a regular basis – computers, door knobs, blankets, cats – are all made of molecules. Some molecules consist of only one atom, others are made up of thousands and thousands of atoms. It’s the interactions between molecules of a substance that give matter …

### The Physics Philes, lesson 80: Oscillation, Conservation, Physics-ification!

We’ve learned a lot about simple harmonic motion over the past several weeks. We’ve learned how to find the velocity, acceleration, and displacement of an object in SHM. Now we need to integrate energy into our understanding. Let’s think about our object oscillating at the end of a spring. The …

### The Physics Philes, lesson 48: Physicists Make Weird Things for Science

In which I draw a weird thing, do math, and make promises I intend to keep. OK nerds! Class is over, which means it’s time to get down and dirty with some physics. Last time this post had something substantive in it, I discussed the kinetic energy of a rigid …

### The Physics Philes, lesson 46: Rotational Motion Gets Kinetic!

Guys! I’m back and ready to science! I hope you missed me. I’ll start today where I left it before the epic black hole detour. That’s right. We’re back in the domain of rotational motion. Specifically, we’ll discuss how to find the kinetic energy of a rigid, rotating body. To …

### The Physics Philes, lesson 33: I’ve Got the Momentum!

In which a gun recoils, a crappy diagram is drawn, and kinetic energy is differentiated. Last week I explained the basics of conservation of momentum. Today we’ll do a  problem to demonstrate this basic principle. I know you’re excited, so let’s get to it. We know that if a system …

### The Physics Philes, lesson 14: The Ole Work-around

In which problems are solved, cars are pushed, and wood is hauled. Last week I did my best to explain work, kinetic energy, and power. Now for the fun part. Drum roll please! *drum roll* It’s time for the math! Alrighty. Let’s start with a simple problem on work done …