sheet of cardboard Purpose: Demonstrate relative motion in a line Steel Balls Purpose: Low friction motion Toy car with large friction Purpose: High friction motion Balls dropping in water, glycerin Purpose: Falling in a high friction medium Bowling ball rolling on incline with flashing lights Purpose: To illustrate how Galileo "slowed down" effects of gravity to make them easier to measure Purpose: Shows that mathematics can be used to transform equation to a different form that can be more readily tested.
(motion Balls; dropping; L:in water; glycerin Purpose) (a different form; can be more readily tested; ) (mathematics; to transform; equation; to a different form)
motion Balls a different form mathematics
dropping can be more readily tested to transform
L:in water glycerin Purpose
equation to a different form