Week #2 – Concept Review
If you want a bit of a concept refresher from this week’s class, download the PDF review of Newton’s Laws of Motion and check out the videos we watched in class as well as a few more:
Eureka! Episode: 1 Inertia
Things like to keep on doing what they are already doing. They don’t like to start moving or stop moving. They are lazy. Another word for laziness is… INERTIA.
Eureka! Episode 2: Mass
Big things aren’t always lazier than small things. It all depends on how much MASS they have. The more MASS the more the inertia.
Eureka! Episode 3: Speed
In order to make a thing change what it is doing, you have to use force, and force varies not only with mass, but also with change of SPEED.
Eureka! Episode 4: Acceleration Part 1
The greater the rate of change of speed, the greater the force required. Another word for rate of change of speed is ACCELERATION. The more you accelerate, the more force you need, but force varies with mass. So, we say that force = mass * acceleration
Eureka! Episode 5: Acceleration Part 2
Eureka! Episode 6: Gravity
Penny & Feather Drop with Air Resistance
Ball & Feather Drop in a Vacuum