Question

Two students wanted to find out which of their toy cars would go the farthest. They let each car
roll down a ramp and then measured how far these cars rolled. Which of these should be held
constant, if they want a fair test of their cars?
(A) The height of the ramp
B) The weight of the ramp
(C) The length of the cars
(D) The shape of the cars​

Answer 1

Answer:

option (c) The height of the ramp.