type of ball used
height of the ramp
drop height of ball
falling time of ball
falling time of ball used
drop height of ball used
braking distance of car
type of car used
the size of the ball
type of tire tread
Scientific hypothesis: If the weight of the ball increases then the falling time will decrease.
Scientific hypothesis: If the drop height of the ball increases then the falling time will increase.
Scientific hypothesis: If the temperature of the oven air increases then the baking time for the cake will decrease.
Scientific hypothesis: If the weight of the car increases then the braking time will increase.
Scientific hypothesis: If the length of the car decreases then the braking time will decrease.
Scientific hypothesis: If the tire treads of the car become smoother then the braking time will increase.