Todays Act Science

Test Preparation ACT Preparation
21

<p>I think I put the second answer as well, but I’m not entirely positive. I may have put A. It was the one that started off with a plain circle, somewhere branched into darker circles, and that branch stayed dark, where the other ones were not. I don’t know how much sense that all made.</p>

22

<p>scores should be out on the 22. I’m glad i don’t have school that day so I should have no problem staying up. I had about 1 minute left on the science and them circles and stuff for the fighting scientists was just too much to try to understand</p>

23

<p>the branch problem was not bad, the hypothesis stated that the Bacteria needed to be infected early on in different stages (different wording but same idea) so the graph with multiple black lines coming out of random dots would be correct. The allele did not originate from a single bacteria, so all the diagrams with black lines only coming out of one dot was wrong.</p>

24

<p>answers

  1. the branch one was b
  2. 20 days
  3. x1 + x2
  4. boyancy= decrease
  5. cell respiration
  6. allelles
  7. 1993/ 1997 respectively
    lets keep this going?</p>
25

<p>how sure are you that the answer to the flood problem was 1993?</p>

26

<ol>
<li>should be genes</li>
</ol>

<p>What does x1 + x2 represent?</p>

<p>And what happened in 1997?</p>

<p>wanago2college - I put 93 because of the enourmous spike in the graph. It may be wrong, it may not be. I dunno.</p>

27

<p>one of the answers was 93… the other one was 1997… i think.
i dont remember anymore D= shoot.</p>

28

<p>I think the flood was in 93.</p>

<p>Was 97 the year the cryz-whatever it was called (it was on eof the herbicides) was at its lowest? (I think I’m making this up. Someone tell me I haven’t gone insane…)</p>

29

<p>I thought the Science was a breeze</p>

30

<p>To clarify, the 1997 was referring to the question where the level of pesticide was the lowest. What you had to do was look at the figure on the right page (where the x axis was amount of herbicide). The corresponding load would match up to the original graph and it turned out to be in 1997.</p>

31

<p>well I know I got buoyancy wrong now… dam shoulda read the passage.
anyways for the resistor one: for the same current, would a resistor with higher resistance generate more heat or less heat than one with lower resistance? I was really iffy about this problem but I put higher resistance would get more heat</p>

32

<p>we asked that earlier and never really came to one answer. I had said a resister wouldnt get more heat because a current wasnt passing through. I’m not sure about that one though</p>

33

<p>answers

  1. the branch one was b
  2. 20 days
  3. x1 + x2
  4. boyancy= decrease
  5. cell respiration
  6. allelles
  7. 1993/ 1997 respectively
  8. Risistor 2 had more heat because higher resistance
  9. Sector 6 for biking question.
  10. average was 165 167 170 173 175
  11. As D increased the t decreased
  12. Order was A, B, C
  13. Liquid C because it had a higher viscocity.
  14. Liquid L would be over 194 sec.
  15. Scientist 2 believed the mutation can occur before exposure, scientist 1 did not believe that.
  16. Scienits 2, 3 had the same belief.
    lets keep this going? </p>

<p>ill try to think of more later</p>

34

<h1>8 - are we sure about that one? I don’t think we ever came to a definite conclusion.</h1>

<p>And I’m still not sure what the x1 + x2 refers to…</p>

35

<p>x1 + x2 is the equation for resistors in series. And number 8 is correct because the more resistance, the more friction and therefore the more heat generated. There are physics equations involving Q. maybe Q = RV? I dont remember but heat increases with more resistance.</p>

36

<p>yay for olleger! compiling answers to lessen jelecrois’s neuroticism ftw(:</p>

37

<p>Wait, olleger for #6 wasn’t another option genes?</p>

38

<p>yeah one of the two. they were one answer. Im pretty sure it was genes</p>

39

<p>It was genes, but that’s okay :)</p>

<p>Yeah, I tried remembering the equation we learned in physics last year for the heat one, and I eventually gave up. I think I picked that answer… I was debating between being inversely proportional and being directly proportional. Not sure which one I went with. Thanks for clearing that up, olleger!</p>

40

<p>It should be 40 for the half-life question. If half of your stuff is gone at 20, all of it will be gone at 40. So 40 is the minimum number of days you need to keep applying it.
For the population genetics question, I put C. That’s because in Hyp. 1 it stated the mutation happened ONCE whereas on the genetic map for C the mutation happened multiple times.</p>