check answers

Question

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

Answer 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

Answer 2

Your doomed

Answer 3

I don't know either

Answer 4

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

Answer 5

1.o.040j 2.650.0 3.338.0

Answer 6

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

Answer 7

Thanks mo!

Answer 8

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

Answer 9

The last one is d

Answer 10

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

100% guaranteed
I just took it

Answer 11

Thanks salted Caramel!

Answer 12

Thank You
Salted Carmel!!! I got 100%

Answer 13

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

Answer 14

ITS JUST A CAMEL

Answer 15

Thx Salted Carmel!

Answer 16

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

Answer 17

b
c
a
a
d

5/5 100%

Answer 18

Thanks guys.

Answer 19

100% thx Caramel

Answer 20

This sit mad me get an f

Answer 21

thanks

Answer 22

yup,correct
bcaad

Answer 23

i got 4 out of 5 right

Answer 24

SALTED CARAMEL IS CORRECT! Thanks salted caramel! 100%

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

Answer 25

Salted Caramel is correct for Unit 3, Lesson 1

Answer 26

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

Answer 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

Answer 28

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

Answer 29

SALTED CARAMEL IS CORRECT

Answer 30

SALTED CARAMEL IS CORRECT! Thanks salted caramel! 100%

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

Answer 31

wow thats right YAY :D

Answer 32

Passed

Answer 33

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

Answer 34

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

Answer 35

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

Answer 36

yes it it correct for connexus
B
C
A
A
D

Answer 37

Omg thank you caramel so much!!!!!!!!!!!!!

Answer 38

thx salted caramel

Answer 39

Salted Caramel sounds goodddddd 😋

yummy

hi how are you doing

what your fav food

ok bye now

Answer 40

Fav food is meat loaf

Answer 41

Please don't spam.

Answer 42

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

Answer 43

CORRECT YAYYYYYYYYY 100% YyyayayyayayYAYYAYAYAYAYYAYAYAY

Answer 44

Yeah thanks everyone!!

Answer 45

Thank you everyone. NOW SHUT UP.

Answer 46

boooo yyeahaha woooooooo
copy righted from emporers new groove xD

Answer 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

Answer 48

a

person

has died in the last twenty four hours

that person was me

JK you thought

Answer 49

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

Answer 50

Salted Caramel 100% correct in 2020!!!

Answer 51

i love these people :3

Answer 52

Salted Caramel is 100% correct

Answer 53

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

Answer 54

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

Answer 55

thanks none ya, Connections acedemy students that is correct

Answer 56

yep they right they right

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

Answer 57

Thanks Salted Carmel I got 100% on my quiz!

Answer 58

thx so much @saltedcarmel

Answer 59

I kinda want Carmel with apples now lol

Answer 60

I still dont understand anything ;m;

Answer 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 ÷ 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 ÷ 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!

Answer 62

BCAAD is right

Answer 63

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

100% guaranteed
I just took it

Salted Caramel
Nov 5, 2015 this is the right stuff if u scroll up its 2021 just a little update so this stuff is right i got a 100 :P

Answer 64

you all are lovely people. thanks salted caramel! :)

Answer 65

If you guys think about it.... Salted Caramel is in COLLEGE rn (17-18 years old) !! That is crazy. Also, thxs Salted Caramel, if you ever get to see my note. Good luck at college.

Answer 66

none ya is correct

Answer 67

Idk about y’all other connexus peeps but for me it was
B
A
A
C
D