dxu46 wrote:
What would your experiment have been? I usually only do the write-up portion.
I would have talked about dropping the marbles from a fixed height (use the ruler), and show that they land in the same amount of time.
Doesn't projectile motion involve a curve? Otherwise, wouldn't it be linear motion?
Projectile motion is motion involving only the force of gravity. Since gravity is constant, and constant forces cause constant acceleration, the graph of position vs time for the marble would be a parabola.
Re: Experimental Design B/C
Posted: September 20th, 2018, 6:50 am
by Jacobi
UTF-8 U+6211 U+662F wrote:
dxu46 wrote:
Jacobi wrote:
I would have talked about dropping the marbles from a fixed height (use the ruler), and show that they land in the same amount of time.
Doesn't projectile motion involve a curve? Otherwise, wouldn't it be linear motion?
Projectile motion is motion involving only the force of gravity. Since gravity is constant, and constant forces cause constant acceleration, the graph of position vs time for the marble would be a parabola.
I think that dxu46 can go. We should all review the various types of experiments. I would caution you that rolling motion versus projectile motion will come up in competition.
Re: Experimental Design B/C
Posted: September 20th, 2018, 4:11 pm
by dxu46
What needs to be included in a proper Analysis?
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:10 pm
by Jacobi
dxu46 wrote:What needs to be included in a proper Analysis?
A proper analysis must discuss and interpret all data, commenting on outliers and accurately explaining and interpreting trends in the data using detail and supporting evidence.
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:13 pm
by dxu46
Jacobi wrote:
dxu46 wrote:What needs to be included in a proper Analysis?
A proper analysis must discuss and interpret all data, commenting on outliers and accurately explaining and interpreting trends in the data using detail and supporting evidence.
Only thing I'd do is hide my answers. Your turn!
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:17 pm
by Jacobi
dxu46 wrote:
Only thing I'd do is hide my answers. Your turn!
Sorry. I forgot.
How many levels of IV have to be ID'd?
How many CV's have to be ID'd?
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:21 pm
by dxu46
Jacobi wrote:
dxu46 wrote:
Only thing I'd do is hide my answers. Your turn!
Sorry. I forgot.
How many levels of IV have to be ID'd?
How many CV's have to be ID'd?
1. at least 3
2. at least 4
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:22 pm
by Anomaly
dxu46 wrote:
Jacobi wrote:
dxu46 wrote:
Only thing I'd do is hide my answers. Your turn!
Sorry. I forgot.
How many levels of IV have to be ID'd?
How many CV's have to be ID'd?
1. at least 3
2. at least 4
ah shoot i was about to answer and then I got the message that said "there has been a post in this time" blah blah blah.
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:23 pm
by Jacobi
dxu46 wrote:
Jacobi wrote:
dxu46 wrote:
Only thing I'd do is hide my answers. Your turn!
Sorry. I forgot.
How many levels of IV have to be ID'd?
How many CV's have to be ID'd?
1. at least 3
2. at least 4
Actually, only 3 CVs are needed.
Re: Experimental Design B/C
Posted: September 20th, 2018, 5:32 pm
by dxu46
Jacobi wrote:
dxu46 wrote:
Jacobi wrote:
Sorry. I forgot.
How many levels of IV have to be ID'd?
How many CV's have to be ID'd?