Forces
What does gravity do to a parachute?
Gravity pulls the parachute and the object it's carrying down toward the ground.
What was our independent variable?
(What were we changing?)
The parachute material (cotton fabric and tissue paper)
What happens if the object is heavier?
A heavier object falls faster, even with a parachute, because gravity pulls harder on it.
What was the dependent variable?
(What were we measuring?)
The amount of time it takes both parachutes to land
Why does a parachute slow things down?
The parachute catches a lot of air, which creates air resistance. This slows the fall.
What materials did we use to make the parachute?
List a minimum of 3
String
Cotton fabric
Tissue paper
2 dolls
Sticky tape
What forces acted upon the parachute when it dropped?
List 2
Air resistance
Gravity
What were our controlled variables?
(What stayed the same?)
Same weight (dolls)
Dropped from the same height
Same length and type of string
Size of each parachute.