Hi everyone, Sal Khan here and welcome to Middle School Physics. I have Iman Howard, who manages all of our STEM content. Iman, why should folks be excited about Middle School Physics?
So, Middle School Physics is like the only science out there that explains how things happen. Everything’s made of matter - me, you, the chair that I’m sitting on - and this course is going to explore how we exist in the natural world. We talk a little bit about movement and forces, and learn that everything we have a collision with has an equal but opposite force that’s applied when the collision happens. We also talk about force in a way where it doesn’t touch you - like Star Wars, there’s this force energy, like gravitational, magnetic, and electric energy. Finally, we get into waves and talk a little bit about how waves exist, whether it’s sound waves or even the waves in the ocean.
What do you think’s exciting about it? Oh, well, that’s a dangerous question to ask me - I wanted to be a physicist and I still aspire to be it. We kind of wake up in this cosmos and we’re just trying to understand what, where we fit in. And physics asks the most fundamental questions about how the universe works. When I first learned about Newton’s laws, and fields, and all of the things that you just touched on, it started to give me goose bumps. We can finally understand how the universe fits together and then use that to make predictions and think about things that we don’t understand - and there is so much that we don’t understand.
So I think this is the beginning of a very, very exciting journey in physics. I agree, Sal. (energetic blipping)