science

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1. A box of cleaning supplies weighs 15n.if the box is lifted a distance of 0.60m,how much work is done?

A. 0.040 j
B.9 j
C.14 j (I PICK THIS)
D.25 j

2.to chop wood you apply 50.0n of force to an ax. The ax applies 600.0n of force to the wood. What is the mechanical advantage of the ax?

A. 650.0 (I PICK THIS)
B. 8.3
C. 12.0
D. 0.0833

3.you do 185 j of work pulling a cart up a ramp. if the ramp does 153 j of work, what is the efficiency of the ramp?

A. 82.7 percent
B. 121.0 percent(I PICK THIS)
C. 32.0 percent
D. 338.0 percent

4.remy noticed that after oiling his skateboard wheels, it was easier to reach the speeds he needed to perform his tricks. How did the oil help??

A. the oil reduced friction between the moving parts of the skateboard.

B. the oil increased friction between the moving parts of the skateboard(I PICK THIS

C. the oil reduced friction between the skateboard wheels and the ground.

D. The oil increased friction between the skateboard wheels and the ground

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  1. 1. A box of cleaning supplies weighs 15n.if the box is lifted a distance of 0.60m,how much work is done?
    ===================
    Force * distance
    15 * .6 = 9 Joules
    ==========================

    A. 0.040 j
    B.9 j MY CHOICE
    C.14 j (I PICK THIS)
    D.25 j

    2.to chop wood you apply 50.0n of force to an ax. The ax applies 600.0n of force to the wood. What is the mechanical advantage of the ax?
    =====================
    600/50 = 60/5 = 12
    ===================

    A. 650.0 (I PICK THIS)
    B. 8.3
    C. 12.0 <---------------- MY CHOICE
    D. 0.0833

    3.you do 185 j of work pulling a cart up a ramp. if the ramp does 153 j of work, what is the efficiency of the ramp?
    -----------------------------
    I think you have a typo in the question
    If the useful work done is 153 and you needed 165 then
    100 * 153/185 = 82.7%
    ===================

    A. 82.7 percent <------ MY CHOICE
    B. 121.0 percent(I PICK THIS)
    C. 32.0 percent
    D. 338.0 percent

    4.remy noticed that after oiling his skateboard wheels, it was easier to reach the speeds he needed to perform his tricks. How did the oil help??
    *************************************
    A. the oil reduced friction between the moving parts of the skateboard.
    **************************************
    Oil REDUCES friction!
    ****************************

    B. the oil increased friction between the moving parts of the skateboard(I PICK THIS *********NO!!!!!

    C. the oil reduced friction between the skateboard wheels and the ground.

    D. The oil increased friction between the skateboard wheels and the ground

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  2. Your doomed

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  3. I don't know either

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  4. I may have an idea I think it would be A.

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  5. 1.o.040j 2.650.0 3.338.0

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  6. 1. B
    2. C
    3. A
    4. A

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  7. Thanks mo!

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  8. What about the last one? Matt forgot to put up question #5

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  9. The last one is d

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  10. 1. B
    2. C
    3. A
    4. A
    5. D

    100% guaranteed
    I just took it

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  11. Thanks salted Caramel!

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  12. Thank You
    Salted Carmel!!! I got 100%

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  13. salted carmel and mo are right i got 100% : )

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  14. ITS JUST A CAMEL

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  15. Thx Salted Carmel!

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  16. Salted Caramel is 100% correct. I have just taken the quiz and gotten a 5/5 100%

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  17. b
    c
    a
    a
    d

    5/5 100%

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  18. Thanks guys.

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  19. 100% thx Caramel

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  20. This sit mad me get an f

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  21. thanks

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  22. yup,correct
    bcaad

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  23. i got 4 out of 5 right

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  24. SALTED CARAMEL IS CORRECT! Thanks salted caramel! 100%

    Answers:
    1.B
    2.C
    3.A
    4.A
    5.D
    !!!!!

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  25. Salted Caramel is correct for Unit 3, Lesson 1

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  26. salted caramel rocks thanks dude!!!!!!!!!!!!:)

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  27. This is for CONNECTIONS ACADEMY ONLY
    I do not want any other students from a different getting it wrong

    Lesson 1: Work and Machines
    Science 6 B Unit 3: Energy

    1. B
    2. C
    3. A
    4. A
    5. D

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  28. 1. B
    2. C
    3. A
    4. A
    5. D
    100% THANKS SALTED CARMEL.

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  29. SALTED CARAMEL IS CORRECT

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  30. SALTED CARAMEL IS CORRECT! Thanks salted caramel! 100%

    Answers:
    1.B
    2.C
    3.A
    4.A
    5.D

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  31. wow thats right YAY :D

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  32. Passed

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  33. Salted Caramel is 100% correct I just took the test and got 5/5
    You're the best! =3

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  34. YAY!! Thank you guys I made a 100% Y'all are always there if I need help Yeah Thanks Mo and Salted Carmel!!

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  35. thank you salted caramel so much!!!! i got 100%

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  36. yes it it correct for connexus
    B
    C
    A
    A
    D

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  37. Omg thank you caramel so much!!!!!!!!!!!!!

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  38. thx salted caramel

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  39. Salted Caramel sounds goodddddd πŸ˜‹

    yummy

    hi how are you doing

    what your fav food

    ok bye now

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  40. Fav food is meat loaf

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  41. Please don't spam.

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  42. 5/5 (100%)
    B.
    C.
    A.
    A.
    D.
    trust me.

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  43. CORRECT YAYYYYYYYYY 100% YyyayayyayayYAYYAYAYAYAYYAYAYAY

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  44. Yeah thanks everyone!!

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  45. Thank you everyone. NOW SHUT UP.

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  46. boooo yyeahaha woooooooo
    copy righted from emporers new groove xD

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  47. the answers for Unit 2 lesson 1 Energy is 1. 9 J or A 2. 12.0 or C 3. 82.7 percent or A
    4. The oil reduced the friction between the moving parts of the skateboard. or A
    5.pulley or D

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  48. a

    person

    has died in the last twenty four hours

    that person was me

    JK you thought

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  49. yes thank you so much!! I got 100%!!!!!

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  50. Salted Caramel 100% correct in 2020!!!

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  51. i love these people :3

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  52. Salted Caramel is 100% correct

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  53. 1)B
    2)C
    3)A
    4)A
    5)D
    those are the correct answers :)
    10/29/2020
    9:50 A.M.

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  54. none ya is 100% right in 2020 trust me!!!!

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  55. thanks none ya, Connections acedemy students that is correct

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  56. yep they right they right

    my knees hurt I need to wear knee pads at the skatepark I think

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  57. Thanks Salted Carmel I got 100% on my quiz!

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  58. thx so much @saltedcarmel

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  59. I kinda want Carmel with apples now lol

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  60. I still dont understand anything ;m;

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  61. @Sharkie Kanachu Allow me! :)

    1. A box of cleaning supplies weighs 15 N. if the box is lifted a distance of 0.60 M, how much work is done? Answer: B. Explanation: 15 N x 0.60 = 9 J

    2. To chop wood you apply 50.0 N of force to an ax. The ax applies 600.0 N of force to the wood. What is the mechanical advantage of the ax? Answer: C. Explanation: 600.0 N Γ· 50.0 N = 12 (Or 12.0 in this case.)

    3. You do 185 J of work pulling a cart up a ramp. if the ramp does 153 J of work, what is the efficiency of the ramp? Answer: A. Explanation: 153 Γ· 185 = 82.7.

    The last two are pretty easy.

    Number 4 is A. Obviously if you put oil on anything it won't increase friction, so B and D are out. C doesn't make much sense because if you put oil on your tires it won't make you faster, it will make you slippery.

    Number 5 is very simple. A, B, and C are not simple machines, so D is the only option.

    I hope this helped!

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