Bike/Car Gear Confusion?

Wheelhouse

New member
i'm just starting to learn about cars but i get confused about transmissions. I am trying to learn about how gears, gear ratios, transmission, etc. work by comparing them to a bike because from what I understand, on a VERY basic level, they're the same thing. When i did this i realized i don't fully know how bike gears work. I know how to shift gears when riding, when to shift, what gear to shift to and all that.

-Question ->But what i don't get at all is how shifting the chain to different gears(moving the chain to different sprockets) affects how hard or easy it is to pedal.
 
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