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by BSchiffer
March 4th, 2015, 6:14 pm
Forum: 2015 Study Events
Topic: Dynamic Planet B/C
Replies: 73
Views: 18372

Re: Dynamic Planet B/C

Alright, thanks! Also, does anyone know whether we should know about El nino/La nina for division C Dynamic Planet? It doesn't seem to be in the list of topics, but I feel like it is an important part of oceanography.
by BSchiffer
March 2nd, 2015, 6:09 pm
Forum: 2015 Study Events
Topic: Dynamic Planet B/C
Replies: 73
Views: 18372

Re: Dynamic Planet B/C

What formulas should we know for buoyancy? What types of problems could they possibly ask? I am having trouble finding example problems on the practice tests...
by BSchiffer
March 7th, 2014, 4:58 pm
Forum: 2014 Study Events
Topic: Simple Machines B/Compound Machines C
Replies: 196
Views: 42023

Re: Simple Machines B/Compound Machines C

Thanks! One more question, for the lever, it says it must fit in a box 100x100x50 at impound, but does it have to actually be in a box? Or does it just have to theoretically fit? Thanks again for everyone's help!!! No. Many science olympiad events give max sizes for devices based upon a theoretical...
by BSchiffer
March 7th, 2014, 3:14 pm
Forum: 2014 Study Events
Topic: Simple Machines B/Compound Machines C
Replies: 196
Views: 42023

Re: Simple Machines B/Compound Machines C

Thanks! One more question, for the lever, it says it must fit in a box 100x100x50 at impound, but does it have to actually be in a box? Or does it just have to theoretically fit?

Thanks again for everyone's help!!!
by BSchiffer
March 7th, 2014, 11:46 am
Forum: 2014 Study Events
Topic: Simple Machines B/Compound Machines C
Replies: 196
Views: 42023

Re: Simple Machines B/Compound Machines C

Can someone explain to me the ideal mechanical advantage of pulleys? Some sources say that it is the number of pulleys, others say the number of strings, and others say its one for a stationary and 2 for a moving. I feel like this shouldn't be this complicated so if someone could explain it to me I ...
by BSchiffer
March 7th, 2014, 5:02 am
Forum: 2014 Lab Events
Topic: Experimental Design B/C
Replies: 242
Views: 27521

Re: Experimental Design B/C

I know we are allowed to bring a ruler, but are we allowed to use this ruler in our experiment, for say, a ramp? Or a support? Or is the ruler solely for measurements?
by BSchiffer
March 6th, 2014, 5:49 pm
Forum: 2014 Lab Events
Topic: Experimental Design B/C
Replies: 242
Views: 27521

Re: Experimental Design B/C

What does operationally defined mean for IV and DV? Operationally defined means using units, in essence. For example (Bold is the operationally defined part): IV: Ball dropped (Tennis, ping pong, basket ball) DV: Height bounced (Cm) What are three levels of IV? The three different independent varia...
by BSchiffer
March 6th, 2014, 5:24 pm
Forum: 2014 Lab Events
Topic: Experimental Design B/C
Replies: 242
Views: 27521

Re: Experimental Design B/C

I was looking through the rubric and I had some questions:

What does operationally defined mean for IV and DV?
What are three levels of IV?
What are examples of SOC?

Thanks for any help!!
by BSchiffer
March 6th, 2014, 4:01 pm
Forum: 2014 Study Events
Topic: Astronomy C
Replies: 132
Views: 24911

Re: Astronomy C

For this event we are allowed laptops, but is there a rule as to what we can do on the laptop? I assume internet is not allowed, but are we allowed to have browser windows opened with pre-loaded pages, or is this against the rules?
by BSchiffer
March 2nd, 2014, 3:54 pm
Forum: 2014 Study Events
Topic: Simple Machines B/Compound Machines C
Replies: 196
Views: 42023

Re: Simple Machines B/Compound Machines C

BSchiffer wrote: For division C Compound Machines, most of the practice problems I can find online are just ideal/actual mechanical advantage. What are types of problems that would require load, effort, potential/kinetic energy, or coefficient of friction? What and how much should we know about the...

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