yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Introduction to Middle school physics | Khan Academy


2m read
·Nov 10, 2024

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. Basically, everything's made of matter—me, you, um, the chair that I'm sitting on. This course is going to explore how we exist in the natural world. For example, we talk a little bit about movement and forces, and we learn that everything—everything that we have a collision with—has this equal but opposite force that's applied when the collision happens.

That's why when you give those high fives and then your hand starts stinging, it's because the same force you gave your buddy is the same force they gave you back. Then we also talk about force in a way where it doesn't touch you. I'm thinking like Star Wars—there's like this force energy, like gravitational, there's magnetic energy, there's electric energy.

And then finally we get into waves, and we 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?

Oh, well, that's a dangerous question to ask me! I wanted to be a physicist, and I still aspire to be it because, you know, we kind of wake up in this cosmos and we're just trying to understand where we fit in. Physics asks the most fundamental questions about how the universe works.

When I first learned about Newton's laws and fields and all the things that you just touched on, it started to give me goosebumps because I'm like, wow, 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!

More Articles

View All
Do the ultra successful share similar characteristics?
It’s hard to say whether these ultra high net worth people, billionaires or corporate executive types, really have the same style. I think everybody has their own unique style. I think it’s part of the active negotiations; it’s just part of the game. It …
The Odds of Existence
In life, anything is possible because we can never fully understand how the world works. The laws of physics prevent us from being able to tell the future. Everything we predict is a probability; some are a lot more probable, others are less probable, whi…
AVOID THESE 5 MONEY MISTAKES IN 5 MINUTES
What’s up, you guys? It’s Random here. So let’s be honest with ourselves. We all want to get better with our money, whether it’s making more money or growing our wealth. It’s all about the small improvements we make along the way. Unfortunately, most peop…
Peter Lynch Warns About the BIG Danger of Index Funds in Recent Interview (2021)
If you’ve been following this channel, you know Peter Lynch is one of my favorite investors to study. However, Peter Lynch hasn’t given an interview in years. So when he finally gave an interview this past week, it got my full attention. In this intervie…
Is Space Weather a Thing? | StarTalk
Another kind of weather more traditional way to think about whether is what the air is doing on planets that have atmospheres. And moons don’t have an atmosphere, so we don’t think about them. Whether Mars has an atmosphere, Jupiter has an atmosphere, Sa…
Jared Friedman - Advice for Hard-tech and Biotech Founders
I am Jarrod. I am one of the partners at YC, and I’m gonna talk about starting hard tech and biotech companies set of curiosity in the colonies here today. Who is starting something like a hard tech or a biotech company? Okay, a handful of folks, nice. Ex…