It is the power to weight ratio and aerodynamics that makes one car faster than another, not necessarily it's physical size.
small car becuase it whieghs less ormaybe big car because its got more horsepower
depend on its engine
not necessarily. bigger cars have more weight so they are not faster but sometimes a big car with a powerful engine like the V8 engine can be faster than a small V4 engine car
Small cars are typically faster because of their center of gravity and because of how much less they weigh than a big truck
small car is less money but big car is better unless your talking about a mini van or just a van then its small car is better depends!!!
big leaves
A big gear turning a small gear means the small gear will spin faster, but weaker.
That is not possible small dogs can run quiet fast for their size maybie faster!but big dogs are very fast too,as the small dogs are lighter than big so that's why!
No this is not true at all allot contributes to the speed of a car but a small engine is not one of them
A bigger marble will go faster because it has more weight.
It will go faster because if you have a small/non-steep ramp the car will go slow and the ending point wont be that far, but if you have a ramp that is bigger/steeper the car will go faster and the ending point will be far.
Well it all depends on what types really, if they are both of the same, then the big one will roll faster. Lets say for example, you had a big kick ball and a little kick ball, the big will roll faster in the wind. Sorry about the second post, but i almost forgot, it also depends on how big the ball is, because if it's MUCH larger then it will not roll faster, and if it too small, it will hardly roll as well. So as long they are close in size the big one will roll/travel faster