Energy Conservation Design Lab Idea

[anismohe]

Hello!
Im working on a design lab but need a little help on making it simple enough to use materials you would find in a standard physics classroom.

Purpose: To develop a testable question that examines the relationship between 2 variables governed by the law of conversation of Energy.

It has to double within 1HR and 15Minutes

Must also involve the transfer of energy from one type to a different type.

I was thinking about using a ball outside thrown directly vertical except that could get tricky to measure the distance. Was advised to use this software which requires you to film the ball. Tho its completely unreliable and quite confusing for me to use.

any idea's?

thanks in advance!

 

[anismohe]

bump :)