General Discussion

muriel_volestrangler

(106,232 posts)

31. The question about tides is unacceptable as a question (so, spoiler in this post)

Fri Sep 11, 2015, 06:07 AM

Sep 2015

"Which of these is the main way that ocean tides are created?"

a: The rotation of the earth on its axis

Well, yes, the cycle of the tides does come from the earth rotating with respect to the moon and sun. That's why there are just over 12 hours between high tides. If the same side of the earth always faced towards the moon (eg as Pluto does with Charon), you wouldn't see the tide created by the moon, just a smaller one from the changing relative position of the sun.

b: The gravitational pull of the moon

Well, yes, that is the dominant gravitational force involved.

Pew failed on that question. I guess they want (b) as the answer, but (a) is valid too.

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12 question science test. 6% get all right. [View all] Liberal_in_LA Sep 2015 OP

I missed one.... peacebird Sep 2015 #1

me too.. the boiling water one Liberal_in_LA Sep 2015 #2

Same here.... peacebird Sep 2015 #3

Same here. TDale313 Sep 2015 #6

I got that one right TubbersUK Sep 2015 #11

I always remember my gases because of the naming. Erich Bloodaxe BSN Sep 2015 #73

I like it - very useful TubbersUK Sep 2015 #94

I remembered because I've camped LibertyLover Sep 2015 #145

That's the one I missed as well - also, astrology is not science oberliner Sep 2015 #55

Neither bmbmd Sep 2015 #179

Same. Agschmid Sep 2015 #62

Only one that I missed too. NuclearDem Sep 2015 #81

Missed the boiling question as well Mike Daniels Sep 2015 #89

Same, though I did randomly guess on the sound one. Lancero Sep 2015 #119

here here. only one. never think about it near sea level. nt Ilsa Sep 2015 #193

Me too - the one about sound. KentuckyWoman Sep 2015 #16

That was the one I missed. nt tblue37 Sep 2015 #42

Same here Scootaloo Sep 2015 #178

me too restorefreedom Sep 2015 #83

The magnifying glass one KamaAina Sep 2015 #146

That's the only one I missed. n/t A HERETIC I AM Sep 2015 #165

Me, Too Leith Sep 2015 #177

That was the one I missed also. nt Mojorabbit Sep 2015 #203

I got 10 of 12 Skittles Sep 2015 #4

.. Liberal_in_LA Sep 2015 #5

Did you miss the sound and boiling water ones? I would imagine those would be the ones more tblue37 Sep 2015 #44

Those are exactly the two I missed. n/t Whiskeytide Sep 2015 #86

12/12. You scored better than 94% of the public and the same as 6%. Solly Mack Sep 2015 #7

.. Liberal_in_LA Sep 2015 #10

congrats, sincerely :) steve2470 Sep 2015 #97

I got a perfect score as well! bullwinkle428 Sep 2015 #100

What a team we'd make rock Sep 2015 #121

nice catch re the names! renate Sep 2015 #123

Ditto. n/t X_Digger Sep 2015 #200

10 out of 12 for me TubbersUK Sep 2015 #8

#10 doesn't really have a correct answer listed Fumesucker Sep 2015 #9

It CAN, but it ISN'T, generally. Spider Jerusalem Sep 2015 #15

I got 100%, I knew the answer to pick but it's not completely correct Fumesucker Sep 2015 #19

I think you have a reading comprehension issue Spider Jerusalem Sep 2015 #21

Uranium isn't *needed* for nuclear power although it is for nuclear bombs Fumesucker Sep 2015 #22

Yes, it is *needed* for nuclear power. Spider Jerusalem Sep 2015 #23

I've had a diesel car Fumesucker Sep 2015 #24

Post removed Post removed Sep 2015 #25

Well, the question was Kelvin Mace Sep 2015 #154

It does have a correct answer listed, because it's a multiple choice question muriel_volestrangler Sep 2015 #34

I'm a bit embarrassed I missed that one, good catch. Fumesucker Sep 2015 #43

Regarding the cell phone calls.. DCBob Sep 2015 #141

Hmm - is a call a call before any sound has been received? muriel_volestrangler Sep 2015 #144

It is a bit misleading and clearly they were trying to make that question tricky. DCBob Sep 2015 #147

A call without actually connecting can be a form of communication - jonno99 Sep 2015 #160

Plus I'm pretty sure you need CO2 to build a nuclear reactor (nt) Recursion Sep 2015 #58

So can Pu, or theoretically any fissile isotope.. sir pball Sep 2015 #101

Right, that one was a little outdated Warpy Sep 2015 #180

11 of 12, dang magnification question tripped me up nt steve2470 Sep 2015 #12

the water boiling one tripped me up Skittles Sep 2015 #17

It doesn't take longer to boil water at higher altitude, it takes longer to cook Fumesucker Sep 2015 #20

I have a relatively expensive cooking thermometer madokie Sep 2015 #39

Also 11 of 12, missed the magnification one. Scuba Sep 2015 #47

no offense lol but I'm glad I have company in this lol steve2470 Sep 2015 #48

That was the one I missed, too. hifiguy Sep 2015 #184

That one slowed me down, till I remembered ...... dixiegrrrrl Sep 2015 #59

I got all 12. mahatmakanejeeves Sep 2015 #113

The magnification one was easy for me thanks to the Boy Scouts B Calm Sep 2015 #130

I also got 11 out of 12 and got the same question wrong. smirkymonkey Sep 2015 #95

Same here. All right except the magnification question. Xithras Sep 2015 #157

Oh, hell yes! yuiyoshida Sep 2015 #13

less atmospheric pressure = youceyec Sep 2015 #35

went to University of California, Berkeley! yuiyoshida Sep 2015 #38

12/12 (n/t) Spider Jerusalem Sep 2015 #14

Question 13: What percentage of scientist consider themselves to be republican? uponit7771 Sep 2015 #18

12/12 quaker bill Sep 2015 #26

12/12. NutmegYankee Sep 2015 #27

I got 10 of 12. murielm99 Sep 2015 #28

Water wrong 11/12 LiberalArkie Sep 2015 #29

12 out of 12 Trailrider1951 Sep 2015 #30

The question about tides is unacceptable as a question (so, spoiler in this post) muriel_volestrangler Sep 2015 #31

Well, then you get into the whole pedantry thing again. Frank Cannon Sep 2015 #37

Some of the objections (mine about sound waves, Fumesucker's about thorium) might be 'pedantry' muriel_volestrangler Sep 2015 #67

There would still be a tidal bulge on a non-rotating earth Recursion Sep 2015 #56

Ocean tides are generally held to be the change in water level, or current speed muriel_volestrangler Sep 2015 #63

No, because you can remove the rotation of Earth and still have tides greyl Sep 2015 #96

The question asked "the main way that ocean tides are created" muriel_volestrangler Sep 2015 #104

Right, but the rotation of Earth on its axis isn't necessary, greyl Sep 2015 #125

and the presence of the Moon is not necessary muriel_volestrangler Sep 2015 #142

But it's one of 3 choices for the Main way tides are created, greyl Sep 2015 #168

Exactly - neither the Moon nor the rotation of the Earth are the 'main' way muriel_volestrangler Sep 2015 #171

I completely agree with you. That was the only one I "missed" and I dispute it. Jim Lane Sep 2015 #133

I see that as the reason for the timing/interval of the tides, not their existence altogther. greyl Sep 2015 #167

The question asked about neither their timing, nor magnitude muriel_volestrangler Sep 2015 #172

But if the question is about their existence altogether then there are two right answers. Jim Lane Sep 2015 #174

The whole question's nonsense. NuclearDem Sep 2015 #82

Yeah I got stuck on that one too...my oceanography prof went nuts if somebody said "Moon's gravity MindPilot Sep 2015 #106

I got 12 out of 12. Some questions had answers that were close to correct TexasProgresive Sep 2015 #32

That graph had no information about years--only about sugar consumption and cavities. tblue37 Sep 2015 #41

Put me in that 6%. hobbit709 Sep 2015 #33

12 of 12 madokie Sep 2015 #36

SPOILER ALERT! ANSWER SPOILER AT END OF MESSAGE. tblue37 Sep 2015 #40

You and me both... dixiegrrrrl Sep 2015 #60

I struggled w the sound question. guessed right Liberal_in_LA Sep 2015 #199

Stupid magnifying glass. AngryAmish Sep 2015 #45

7 I suck at science underpants Sep 2015 #46

I got them all, but had to think a bit for the water question. nt. polly7 Sep 2015 #49

Wow, that's all elementary-school level TransitJohn Sep 2015 #50

12/12... orwell Sep 2015 #51

10 of 12 LiberalElite Sep 2015 #52

Are these questions racially biased? oberliner Sep 2015 #53

The word you're looking for is "privilege", I think (nt) Recursion Sep 2015 #57

Did you look at the questions? Maybe the answer is that white people have higher pnwmom Sep 2015 #65

I'm not sure what the answer is oberliner Sep 2015 #176

The same question could be asked of gender. lumberjack_jeff Sep 2015 #112

True, and how the gap varied with the question is interesting too. MindPilot Sep 2015 #136

STEM is big with girls oberliner Sep 2015 #175

I have some issues with #2 Recursion Sep 2015 #54

I think they're OK on that particular point muriel_volestrangler Sep 2015 #70

Nope, radio waves are not a type of light waves dumbcat Sep 2015 #148

10 bigwillq Sep 2015 #61

Maybe I'm not in the .01%... PJMcK Sep 2015 #64

I got 503 out of 12. Erich Bloodaxe BSN Sep 2015 #66

I Got The Same Error The First Time ProfessorGAC Sep 2015 #69

Error 503 Service Unavailable ileus Sep 2015 #68

They quiz on science and then use "race" as a cut on the data?! Race is NOT a biologically valid GreatGazoo Sep 2015 #71

I'd have to take the quiz again, but I don't think they actually asked for a 'science' Erich Bloodaxe BSN Sep 2015 #72

I still have the result up on a separate tab. The question was: GreatGazoo Sep 2015 #74

I agree that the context looks bad Erich Bloodaxe BSN Sep 2015 #75

It seemed obvious that that's what the quizmakers were getting at. Frank Cannon Sep 2015 #76

Well, best is somewhat iffy as others have pointed out. Erich Bloodaxe BSN Sep 2015 #78

Yup. Frank Cannon Sep 2015 #87

12 out of 12 Shrek Sep 2015 #77

I missed the boiling water and the magnifying glass. mnhtnbb Sep 2015 #79

missed those too nadine_mn Sep 2015 #169

I got 10/12. phylny Sep 2015 #80

8th grade test. Rex Sep 2015 #84

12/12 Mendocino Sep 2015 #85

Missed nykym Sep 2015 #88

OH WELL Mr Dixon Sep 2015 #90

Got 100% HOWEVER- if you look at the demographic breakdown vs questions most got wrong KittyWampus Sep 2015 #91

I got 12, but why the fuck is there a question about astrology on a science quiz?... SidDithers Sep 2015 #92

I was quite shocked by that question as well. trotsky Sep 2015 #98

There is an in-depth article TacoD Sep 2015 #111

Precisely! If you don't know the difference between astrology and astronomy . . . hatrack Sep 2015 #124

except the question made astology a science hfojvt Sep 2015 #158

Because when I was in High School I signed up for a Community College class on Astronomy Live and Learn Sep 2015 #134

excellent point, that kinda shocked me nt steve2470 Sep 2015 #188

12 of 12 PowerToThePeople Sep 2015 #93

got all 12.... Takket Sep 2015 #99

It's official - DU has become facebook tjwash Sep 2015 #102

12/12 urbanhermit Sep 2015 #103

12 for 12 truebluegreen Sep 2015 #105

12/12 n/t MosheFeingold Sep 2015 #107

Hope Bill-O takes the quiz: "Tide comes in, tide goes out, you can't explain that!" hatrack Sep 2015 #108

Got 10 out of 12. Waldorf Sep 2015 #109

HS education + 30 years of NOVA + $15 in library late fees = Better than most post-grads. lumberjack_jeff Sep 2015 #110

. libodem Sep 2015 #131

12/12...too easy Baclava Sep 2015 #114

12/12 - I guess that's to be expected since I've been characterized Ms. Toad Sep 2015 #115

That's a pretty easy test. tabasco Sep 2015 #116

This is pretty scary. Because I'm not that smart Hassin Bin Sober Sep 2015 #117

12 but those are general knowledge questions though. Xyzse Sep 2015 #118

12/12, but had to guess on the cell phone JustABozoOnThisBus Sep 2015 #120

did I miss a test ? olddots Sep 2015 #122

I got 11 out of 12. Missed the magnifying glass question. yardwork Sep 2015 #126

I answered 10 of 12 questions correctly. Why are men doing better B Calm Sep 2015 #127

because many of us gals were discouraged from all things math / science Skittles Sep 2015 #191

I missed the boiling point question libodem Sep 2015 #128

Got them all. Aerows Sep 2015 #129

I got 100% correct! n/t RKP5637 Sep 2015 #132

12/12 Agnosticsherbet Sep 2015 #135

12/12. You scored better than 94% of the public and the same as 6%. n/t ColesCountyDem Sep 2015 #137

12 of 12.. pretty easy.. although I did have to think a bit on a couple of them. DCBob Sep 2015 #138

12 out of 12 here! Dream Girl Sep 2015 #139

11/12. Demographic breakdown of male vs. female is very disturbing taught_me_patience Sep 2015 #140

The questions must be gender biased dumbcat Sep 2015 #164

I got all of them correct LibertyLover Sep 2015 #143

12/12 oswaldactedalone Sep 2015 #149

10 of 12. nt Zorra Sep 2015 #150

not to gloat....ok yes to gloat got all 12 dembotoz Sep 2015 #151

One wrong. Skinner Sep 2015 #152

will there be a test about the test ? olddots Sep 2015 #153

That test was fairly pedestrian Brother Buzz Sep 2015 #155

36/50 hifiguy Sep 2015 #185

38/50 Brother Buzz Sep 2015 #187

Yes, this one was more challenging Trailrider1951 Sep 2015 #192

Ouch.. 34. DCBob Sep 2015 #204

12 jonno99 Sep 2015 #156

You scored better than 94% of the public and the same as 6%....nt Wounded Bear Sep 2015 #159

12 of 12 correct Bettie Sep 2015 #161

12 out of 12. longship Sep 2015 #162

12 for 12 Boomer Sep 2015 #163

I missed the one about the property of a sound wave. nt DawgHouse Sep 2015 #166

I missed one. Blue_In_AK Sep 2015 #170

12/12 Act_of_Reparation Sep 2015 #173

11/12 and I'm not that great when it comes to science JI7 Sep 2015 #181

11 out of 12 - missed the light beam through magnifying glass question samsingh Sep 2015 #182

magnifying glasses are used to start fires. I assumed that meant the beams had to Liberal_in_LA Sep 2015 #186

logical samsingh Sep 2015 #189

11/12. Looked at the magnifying glass question hifiguy Sep 2015 #183

All 12 correct Gothmog Sep 2015 #190

Hey, I was a Fine Arts major...so whaddya expect... CTyankee Sep 2015 #194

"You answered 12 of 12 questions correctly." mike_c Sep 2015 #195

I missed one because I got bored with the grade school science alphafemale Sep 2015 #196

12 out of 12 Spirochete Sep 2015 #197

12/12--but I wonder what the results are for, like, Britain MisterP Sep 2015 #198

I didnt expect astrology on a science test. WDIM Sep 2015 #201

I missed one. The one about the magnifiying glass. drm604 Sep 2015 #202