you can make a toy car move with a ballon and pump by blowing balloon up and leting the pump go
You push it fast
Rubber band car
you push it
remote control
because the little toy car doesn't move by its self
A slot car toy is an automatic toy car and can move by itself and a regular toy car you move yourself. The only difference is they can speed on their own!
Push it, or put it on a surface angled down, or attach a battery to it.
This is because the work done in order to move the toy car is smaller than that of the car with the added mass, and so the battery will have to work harder to move the toy car with the mass added
You could put a small motor in it.
you use magnetic force
forward and backwards
wind
Mechanical Energy