## Dynamic Planet B/C

JT016
Member
Posts: 47
Joined: September 27th, 2014, 5:43 pm
Division: C
State: NY

### Re: Dynamic Planet B/C

Hi! I was taking a practice test and came upon this question:

If the high tide of a diurnal tide occurs at 10:00 AM on one day, when will the next high tide occur?
a. 10:25 P.M. the same day
b. 10:50 A.M. the next day
c. 10:00 A.M. the next day
d. 10:00 P.M. the same day
e. 10:25 A.M. the next day

Now, I know that 1 high and 1 low tide occur per day with a diurnal tide. So, it has a period of ~24 hours. This eliminates choices A and D. How do I choose between B, C, and E?
`B.`

windu34
Moderator
Posts: 1340
Joined: April 19th, 2015, 6:37 pm
State: FL
Location: Gainesville, Florida

### Re: Dynamic Planet B/C

Hi! I was taking a practice test and came upon this question:

If the high tide of a diurnal tide occurs at 10:00 AM on one day, when will the next high tide occur?
a. 10:25 P.M. the same day
b. 10:50 A.M. the next day
c. 10:00 A.M. the next day
d. 10:00 P.M. the same day
e. 10:25 A.M. the next day

Now, I know that 1 high and 1 low tide occur per day with a diurnal tide. So, it has a period of ~24 hours. This eliminates choices A and D. How do I choose between B, C, and E?
`B.`
Tides have a period of 24 hours and 50 mins
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

JT016
Member
Posts: 47
Joined: September 27th, 2014, 5:43 pm
Division: C
State: NY

### Re: Dynamic Planet B/C

Hi! I was taking a practice test and came upon this question:

If the high tide of a diurnal tide occurs at 10:00 AM on one day, when will the next high tide occur?
a. 10:25 P.M. the same day
b. 10:50 A.M. the next day
c. 10:00 A.M. the next day
d. 10:00 P.M. the same day
e. 10:25 A.M. the next day

Now, I know that 1 high and 1 low tide occur per day with a diurnal tide. So, it has a period of ~24 hours. This eliminates choices A and D. How do I choose between B, C, and E?
`B.`
Tides have a period of 24 hours and 50 mins
Oh, thanks! So then, if the question asked about a semi-diurnal tide, would the answer be 10:25 PM the same day?

windu34
Moderator
Posts: 1340
Joined: April 19th, 2015, 6:37 pm
State: FL
Location: Gainesville, Florida

### Re: Dynamic Planet B/C

Hi! I was taking a practice test and came upon this question:

If the high tide of a diurnal tide occurs at 10:00 AM on one day, when will the next high tide occur?
a. 10:25 P.M. the same day
b. 10:50 A.M. the next day
c. 10:00 A.M. the next day
d. 10:00 P.M. the same day
e. 10:25 A.M. the next day

Now, I know that 1 high and 1 low tide occur per day with a diurnal tide. So, it has a period of ~24 hours. This eliminates choices A and D. How do I choose between B, C, and E?
`B.`
Tides have a period of 24 hours and 50 mins
Oh, thanks! So then, if the question asked about a semi-diurnal tide, would the answer be 10:25 PM the same day?
Yes
Boca Raton Community High School Alumni
Florida State Tournament Director 2020
National Physical Sciences Rules Committee Member
kevin@floridascienceolympiad.org || windu34's Userpage

Circuit Lab Event Supervisor for 2020: UT Austin (B/C), MIT (C), Solon (C), Princeton (C), Golden Gate (C), Nationals (C)

earthies6
Member
Posts: 1
Joined: March 5th, 2016, 6:21 pm

### Re: Dynamic Planet B/C

Can someone make a list of the formulas we need to know? It's my first time doing this event and States is in a few days. Thanks!

QuantumTech
Member
Posts: 20
Joined: May 24th, 2015, 2:55 pm
Division: C
State: CA

### Re: Dynamic Planet B/C

Does anyone know if Essentials of Oceanography (11th or 12th Edition) is helpful for this event?

Eson
Member
Posts: 5
Joined: March 2nd, 2016, 8:54 pm

### Re: Dynamic Planet B/C

Anyone know how to make a post, and not a reply? I'm new to the forums

Eson
Member
Posts: 5
Joined: March 2nd, 2016, 8:54 pm

### Re: Dynamic Planet B/C

Anyone know how to make a post, and not a reply? I'm new to the forums

Never mind I got it

Eson
Member
Posts: 5
Joined: March 2nd, 2016, 8:54 pm

### Re: Dynamic Planet B/C

Anybody know if the events for Dynamic Planet next year (2017) will follow the same pattern as it has before? The topics were like this: Glaciers (2013 & 2014), Oceanography (2015 & 2016). If so, would that mean that Glaciers is the next upcoming topic? Or unless they decide to add some new random topic...

Unome
Moderator
Posts: 4134
Joined: January 26th, 2014, 12:48 pm
State: GA
Location: somewhere in the sciolyverse

### Re: Dynamic Planet B/C

Anybody know if the events for Dynamic Planet next year (2017) will follow the same pattern as it has before? The topics were like this: Glaciers (2013 & 2014), Oceanography (2015 & 2016). If so, would that mean that Glaciers is the next upcoming topic? Or unless they decide to add some new random topic...
1) Since you're new to the forums, I'll go ahead and give you the general note about not posting multiple times in a row within a short amount of time (use the "edit post" button at the top right of your post).
2) Dynamic Planet actually has (as far as I'm aware) four different topics: Oceanography (2016-2015), Glaciers (2014-2013), Freshwater, possibly under a different name (2012-2011), and Earthquakes and Volcanoes (2010-2009) which according to the SOSI schedule, is planned to rotate back next year (see this thread).
Userpage
Chattahoochee High School Class of 2018
Georgia Tech Class of 2022

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