Science

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2. Two identical masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other? (1 point)
The faster object has the same kinetic energy as the slower object.
The faster object has less kinetic energy than the slower object.
The faster object has twice as much kinetic energy as the slower object.
The faster object has four times as much kinetic energy as the slower object.
3. A 10.0-kg animal is running at a rate of 3.0 m/s. What is the kinetic energy of the animal? (1 point)
3.3 J
30.0 J
45.0 J
90.0 J
When a tennis ball smashes into a tennis racket, the ball temporarily changes shape as it compresses against the racket. Which type of energy is temporarily stored with the ball as it is compressed?

(1 point)
elastic potential
kinetic
electrical
potential
8. Some kayakers coat the bottom of their kayaks with wax to make them more slippery.

Kayakers wax their boats to (1 point)
reduce the work output.
reduce the weight of the kayak.
reduce their input force.
reduce the speed the boat travels in water.
9. You apply 100.0 N of force to a machine. The machine applies 20.0 N of force to the load. What is the mechanical advantage of the machine? (1 point)
200.0
80.0
5.00
0.200
10. A construction worker is using his weight to keep a stationary stack of wooden beams from falling. If the construction worker uses 689.0 N of force to hold 10 beams stationary against a wall, how much work does he do? (1 point)
0 J
0.0150 J
68.9 J
6,890 J
11. Metal cookware often comes with plastic handles. The plastic handles (1 point)
decrease friction.
decrease mechanical advantage.
are insulators.
are conductors.
My answers
2.d
3.c
7.a
8.c
9.c
10.a
11.c

  • Science -

    2. Slower object: KE = 0.5m*V^2.
    Faster object: KE = 0.5m*(2V)^2 =
    0.5m*4*V^2.

    0.5m*4V^2/0.5m*V^2 = 4 Times.

    3. KE = 0.5m*V^2

    9. MA = 20/100

    10. W = F*d. d = 0.

  • Science -

    is number 10. A

  • Science -

    So what are the answers?

  • Science -

    i do not know

  • Science -

    are you from connexus?

  • Science -

    I think so Morgan

  • Science -

    Austin you owe us Answers

  • Science -

    2.D
    3.C
    7.A
    8.C
    9.D
    10.A
    11.C
    These are the correct answers for those

  • Science -

    These answers are wrong you are an idiot

  • Science -

    You guys are all dumb maybe instead of cheating online maybe go back to you lessons and study

  • Science -

    well what are the nsewers if your so smart

  • Science -

    ansewers*

  • Science -

    this is a conexus test not gonna help what your looking for

  • Science -

    You guys are so dum read it says my answers at the bottom look and read

  • Science -

    We did study you idiot!!! I just want to check my answers

  • Science -

    stop talking stuff and help one another! :( I am so disappointed in you kids! You're parents will be mad when I tell on all of you. I am a teacher/tutor here and I will not tolerate this behavior!

  • Science -

    I don't know who you are, but the next time you try to impersonate a teacher, start your sentences with a capital letter and use great punctuation skills. Secondly, I have no idea how you were not only going to impersonate me without using correct spelling and improper punctuation, but you also expect these kids to believe you can contact their parents with no information about their personal life, stop using scare tactics on these poor kids.

  • Science -

    This is just pure madness, you guys don't fight! let's just agree to disagree. Honestly, in my opinion, I believe the it doesn't matter if you cheat or not, if you learned something then you have achieved something:) but still you should at least try because if you don't you won't. meaning, if you believe you can't, you won't try to be anything other than what you can be!
    - This girl is on fire

  • Science -

    That's right!! @This girl is on fire!! Any one have the answers to the conexus test?? There is 25 questions!

  • Science -

    Lesson 12:
    1. D 2. D
    3. C 4. C
    5. A 6. B
    7. A 8. C
    9. D 10. A
    11. C 12. A
    13. A D 14. A
    15. C 16. B C
    17. C 18. C
    19. B 20. B.
    21. ABD 22. A
    23. D

  • Science -

    Hey guys! If you're in ARCA or any other Connections Academy schools then these will be the right answers.
    1. D
    2. D
    3. C
    4. C
    5. A
    6. B
    7. A
    8. C
    9. D
    10. A
    11. C
    12. A
    13. A/D
    14. A
    15. C
    16.B/C
    17.C
    18. C
    19. B
    20. B
    21. A/B/D
    22. A
    23. D

    You can figure out the last two yourself right?? Enjoy, peoples!

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