Question

1. Use the image below to answer the following question.
At which position does the diver have the most gravitational potential energy?
(1 point)
1
2
3
4
2. How does the gravitational potential energy of Coaster A compare with that of Coaster B?(1 point)
The gravitational potential energy of Coaster A is twice as large as that of Coaster B.
The gravitational potential energy of Coaster A is half as large as that of Coaster B.
The gravitational potential energy of Coaster A is 15 times as large as that of Coaster B.
The gravitational potential energy of Coaster A is equal to that of Coaster B.
3. A 54-kg jogger is running at a rate of 3 m/s. What is the kinetic energy of the jogger? (1 point)
18 J
81 J
162 J
243 J
4. Use the image below to answer the following question.
Which kind of energy transformation occurs during skydiving?
(1 point)
mechanical to gravitational to kinetic to potentialmechanical to potential
5. Use the image below to answer the following question.
Which kind of energy does a bowling ball transfer to bowling pins?
(1 point)
potential
chemical
kinetic
sound
6. A student is trying to identify the different forms of energy described in the following chart:
Form of
Energy
Description Examples
Energy A
energy that travels in waves through
space
light
radio waves
Energy B energy that depends on the height of
an object
a person at the top of a
mountain
a book lifted above ground
Energy C
vibration or disturbance of matter
through waves
vibrations from vocal chords
vibrations from stereo speakers
Energy D
potential and kinetic energy are the
basic types
describes how much work an object
can do
a speeding car
a pebble sitting at the top of a mountain

Which entry describes electromagnetic energy?
(1 point)
Energy A
Energy B
Energy C
Energy D
7. During the process of photosynthesis, plants convert carbon dioxide and water into
glucose. Covalent bonds hold the glucose molecules together. The energy stored in these
covalent bonds is called
(1 point)
nuclear energy
thermal energy
electrical energy
chemical energy
8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point)
increasing the slope of the ramp
reducing the friction between the wagon wheels
reducing the length of the wagon handle
increasing the friction between the wagon wheels
9. To lift a load to the roof, you apply 21 N of force to a pulley. The pulley applies 21 N of force
to the load. What is the mechanical advantage of the pulley?
(1 point)
0
1
40
21
10. Carla applied a force of 35 N to a wheelbarrow full of bricks and moved it 2.5 m. Which of the following can be determined from this information?(1 point)
The wheelbarrow supplied 87.5 J of work.
The wheelbarrow has a mechanical advantage of 14.
The wheelbarrow is 7 percent efficient.
The wheelbarrow has 87.5 J of potential energy.

Answer 1

HELP ME PLEASE

Answer 2

FOR CONNEXUS ACADEMY SCIENCE UNIT1 LESSON 4

Answer 3

Can you please post any work you've done for any of the questions and let us know where you are getting stuck? Thanks.

Answer 4

1B
2D
3A
4D
5B
6A
7D
8A
9C
10B

Answer 5

Leo asked you to post your work, not a bunch of letters.

Answer 6

You got two right. That is what one would expect from guessing.

Answer 7

I DID NOT

Answer 8

ok I think they are
B
A
D
B
C
A
D
B
B
A

Answer 9

I guessed the first time but then I looked at them and I think there right

Answer 10

Well -- that's useful! You had a bunch wrong -- and then you post a lot of letters and tell us that you THINK they are right. Yeah!

And you still didn't show any work!

Answer 11

but are they correct

Answer 12

No those are wrong

Answer 13

guys who's right

Answer 14

@ANSWERS PLZ HELP Dude u got everything wrong exept 2

Answer 15

umm actually those are right but they aren't for this test
they are for unit 1 lesson 4 for grade 8
also you guys need to provide explanations like they do on brainly
just trying to help

Answer 16

btw the thing said responses saved so yeah Mrs. sue is lying

Answer 17

2.4.4-Quiz: Potential Energy Quiz (Connections Academy Students)
1. B
2. A
3. D
4. B
5. C
6. A
7. D
8. B
9. B
10. A
(This quiz says 2.4.4 but I have the same questions so I think it's a 100% but I can't guarantee it.) ヾ(⌐■_■)ノ♪

Don't forget to sub to Jackultramotive and AR12 Gaming!

Answer 18

Correct 10/10

Answer 19

For the unit 2 lesson 4 quiz it’s
1. 2
2. The gravitational potential Englert of Coaster A is twice as large as that if Coaster B
3. 243 J
4. Gravitational to kinetic
5. Kinetic
6. Energy A
7. Chemical Energy
8. Reducing the friction between the wagon wheels
9. 1
10. The wheelbarrow supplied 87.5 J of work.

Answer 20

@ Ms.sue & @Bob whatever the hell it is.

Your not helping your just being rude and its really herd to "Show your work" You need to find it and her answer's are right so bug off you little imposter and don't come back because no one wants to see your face you should be ashamed of yourself! >:(

Answer 21

@Yw:) is 100% correct just took the quiz. thank u!!

Answer 22

thanks soooooo much everyone!! :3