Introduced to this in Physics
Lead Weight / Car Demonstration
Because of newton’s first law an object that is in motion stays in motion. That’s why when you stop suddenly in a car you are launched forward
Rubber Ducky Demonstration
When a rubber duck in water stops suddenly it goes backwards instead of forwards
If water wants to go forwards more (because it has more inertia) than the rubber ducky does then the water goes forward while rubber ducky goes backwards
Coin and the Feather
Gravity accelerate things at 9.8
When dropping a hammer and feather hammer would fall first
If you would like to make it fall at the same pace then you need to make a vaccum
Bird Demonstration
Bird (1 kg) in a jar (2 kg) and it’s not touching anything (floating)
No air is going in or out
What’s the jar’s weight in newtons?
It depends on the stage if the bird is falling down and it pushes the air down then it pushes itself up. If all of the air makes it down then it’ll be 30 newtons otherwise it’ll be slightly less.
If the weight is 20 newtons then the bird would get cooked
Air resistance generates heat we just don’t notice it