Re: Experimental Design B/C
Posted: February 9th, 2010, 3:00 pm
Regression is basically plotting the points on your graph and saying "this fits this curve"
im with geek Page 12 of 27
Re: Experimental Design B/C
Posted: February 9th, 2010, 5:53 pm
My coach gave me a chunk of foam, a meter ruler, a spoon, some rubber bands, popsicle sticks, and tape. Im supposed to test the effects of gravity on a ping pong ball, a giant soft rubber bouncy ball, and a tennis ball. Im stuck and have no clue what to do (this is for practice) and im stuck, normally i can do the rest easil but on this...... im stumped (IM BETTER THAN THIS MAKES ME SOUND) im with geek
im with geek Re: Experimental Design B/C
Posted: February 9th, 2010, 9:29 pm
Shouldn't the effect of gravity be the same for all objects?Deathshadow5 wrote:My coach gave me a chunk of foam, a meter ruler, a spoon, some rubber bands, popsicle sticks, and tape. Im supposed to test the effects of gravity on a ping pong ball, a giant soft rubber bouncy ball, and a tennis ball. Im stuck and have no clue what to do (this is for practice) and im stuck, normally i can do the rest easil but on this...... im stumped
Re: Experimental Design B/C
Posted: February 10th, 2010, 8:24 am
You can still test it, and then that can be your hypothesispenclspinner wrote:Shouldn't the effect of gravity be the same for all objects?Deathshadow5 wrote:My coach gave me a chunk of foam, a meter ruler, a spoon, some rubber bands, popsicle sticks, and tape. Im supposed to test the effects of gravity on a ping pong ball, a giant soft rubber bouncy ball, and a tennis ball. Im stuck and have no clue what to do (this is for practice) and im stuck, normally i can do the rest easil but on this...... im stumped
Re: Experimental Design B/C
Posted: February 10th, 2010, 9:59 am
Maybe something involving the foam?
Re: Experimental Design B/C
Posted: February 10th, 2010, 11:16 am
You could bounce them all on the foam.
Re: Experimental Design B/C
Posted: February 10th, 2010, 4:38 pm
I was thinking along those lines, but you'd have to be extremely careful keeping everything the exact same. It's practically impossible.
Re: Experimental Design B/C
Posted: February 10th, 2010, 4:51 pm
Set it from a constant height, and drop it. =]
Is it a great achievement to achieve all checks on the score sheet minus 4?
Is it a great achievement to achieve all checks on the score sheet minus 4?
Re: Experimental Design B/C
Posted: February 10th, 2010, 6:51 pm
Well, you have to drop it at the exact angle, with the same force, every time. Experimental errors? Yes. Is that a good thing? Not really.
Re: Experimental Design B/C
Posted: February 11th, 2010, 3:46 am
Lots of variables in that - elasticity of the balls most importantly. You could just place them on the foam and measure the displacement of the foam.duckiegirl2 wrote:You could bounce them all on the foam.