Directions: Get two identical pieces of paper. Crumple one up into a ball, but leave the other one a flat sheet. Drop both pieces of paper off a high place at the same time. What happens? Which falls faster? Record your observations and make a conclusion, using the terms “mass,” “weight,” and “force of gravity.” Type where you see the red lines! Observations (Use your 5 senses to write your observation):

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Explanation:

For objects on the surface (or close to the surface) of the earth, gravitational acceleration will always remain the same, regardless of shape.

Think about some of the kinematic equations we'd use to model a falling object under the influence of gravity:

Δ

(

y

)

=

v

0

y

t

−

1

2

g

t

2

2

(

−

g

)

Δ

y

=

v

2

f

−

v

2

0

Do you see a mass in any of these equations? No! These equations are independent of mass, because gravitational acceleration is solely dependent on the mass of the earth. The reasons for this are not too difficult to understand (I daresay you'll study them very soon), but in the interests of not straying too much, I will just link you to this video by Khan Academy that explains it, which you can watch if interested.

Why does the crumpled paper fall faster though? Well, that's because there is also air resistance acting on these two objects. A flatter piece of paper invites more air to push against it, while the crumpled sheet is does not.

All this says, however, is that they fall at different speeds due to the different magnitudes of air resistance acting on them. Not due to "lesser" gravitational acceleration.

If you were to repeat this experiment in vacuum, you'd discover that both fall at the same time. In fact, you could drop an elephant and a feather and they'd hit the ground at the same time! That's pretty cool, and goes to prove our point that acceleration due to gravity does not depend on the masses of the objects in question, and certainly not on whether or not they're crumpled.

Hope that helped :)

Explanation:

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increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.