# Science

Which statement explains how the charges on objects determine the electric force between
them? (1 point)
Objects with positive charges repel each other, and objects with negative charges attract each other.
Objects with the same charge repel each other, and objects with opposite charges attract each other.
Objects with the same charge attract each other, and objects with opposite charges repel each other.
Objects with positive charges attract each other, and objects with negative charges repel each other.

Use the table of electric force between objects in two different interactions to answer the question.
Interaction Charge on Object 1 (C) Charge on Object 2 (C) Amount of Force
A +1 –2 weak
B +1 +2 strong
Which conclusion about the interactions is correct?
(1 point)
The objects in interaction A are smaller than in interaction B.
Repulsive forces are stronger than attractive forces.
Positive charges are stronger than negative charges.
The objects in interaction A are farther apart than in interaction B.

A) Why is glass a good insulator? (1 point)
The atoms in glass do not hold on tightly to their positively charged particles.
The atoms in glass do not hold on tightly to their negatively charged particles.
The atoms in glass hold on tightly to their positively charged particles.
The atoms in glass hold on tightly to their negatively charged particles.
A) Which statement describes a difference between insulators and conductors? (1 point)
Insulators have high resistance, while conductors have low resistance.
Insulators have high conductivity, while conductors have low conductivity.
Insulators are made of metallic materials, while conductors are not.
Insulators can transmit electric current, while conductors cannot.
A) Circuit A has a voltage of 10 V, and circuit B has a voltage of 15 V. Which statement about the
circuits is correct? (1 point)
If the resistance in circuit A is greater than the resistance in circuit B, then the current in circuit A is
greater than the current in circuit B.
If the resistance in circuit A equals the resistance in circuit B, then the current in circuit A is greater
than the current in circuit B.
If the current in circuit A equals the current in circuit B, then the resistance in circuit A equals the
resistance in circuit B.
If the current in circuit A is greater than the current in circuit B, then the resistance in circuit A is less
than the resistance in circuit B.

A) How does adding a resistor to an electric circuit affect the current? (1 point)
The resistor increases the current by transforming light energy or heat into electrical energy.
The resistor decreases the current by transforming electrical energy into different types of energy.
The resistor increases the current by increasing the amount of electric charge.
The resistor decreases the current by decreasing the amount of electric charge.
A) Which energy transformation happens when a toaster is plugged in to an outlet in the wall and
used to make toast? (1 point)
Electrical energy from the outlet is converted to heat and chemical energy in the toast.
Electrical energy from the outlet is converted to heat and light energy for the toaster.
Electrical energy from the outlet is converted completely to chemical energy in the toast.
Electrical energy from the outlet is converted completely to heat energy for the toaster.
A) Solar cells are used to power a person’s house. Which statement about the process is correct?
(1 point)
Energy from the sun might be greater than the energy needs of the house, so some energy will be
stored and/or wasted.
Energy from the sun might be greater than the energy needs of the house because some energy is
destroyed in the process.
Energy from the sun might be less than the energy needs of the house, but solar cells make up for
this difference.
Energy from the sun will equal the energy needs of the house because energy is not created or
destroyed.

A) A particular circuit is made up of a battery, a switch, a buzzer, and wires connecting the
components. All of the components are in working order, but the buzzer does not make noise.
Which statement explains this observation? (1 point)
The switch is open.
The conductors are not attached.
The circuit lacks a power source.
The load cannot convert electrical energy.
A) Which purpose does a light bulb serve in a circuit? (1 point)
wire
cell
switch

A)
Use the table to answer the question.
Electromagnet Current Intensity Number of Turns
P medium 20
Q low 20
R low 15
Which list shows the electromagnets in order from weakest magnetic force to strongest magnetic
force?
(1 point)
R, Q, P
Q, R, P
R, P, Q
P, Q, R
A) Which statement about electromagnets is correct? (1 point)
As the number of turns in the wire increases, the strength of the electromagnet increases.
As the number of turns in the wire increases, the intensity of the current increases.
As the intensity of the current increases, the number of turns in the wire increases.
As the strength of the electromagnet increases, the intensity of the current increases.

A) How is an electromagnetic field produced? (1 point)
when an object has an electrical charge
when a conductor interacts with a magnet
when a current runs through a conductor
when electrons move through a circuit

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1. Please I need help I do not understand the topic at all. PLEASE I NEED HELP!!!

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2. We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

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3. I am sorry this is the first time I have use Jiskha my answer where
1.B
2.A
3.D
4.A
5.D
6.B OR D I am not shore
7.D
8.A
9.B
10.A
11.A
12.B
13.B

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4. 1.A
2.C
3.B
4.A
5.A
6.C
7.B
8.A
9.A
10.C
11.B
12.B
13.A
14.do it yourself

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1.C
2.C
3.D
4.B
5.C
6.A
7.D
8.A
9.B
10.D
11.A
12.D
13.D

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6. who do i trust to see if the answers are right

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7. don't trust Chicken little he got me 0/13 now i am in trouble

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8. Thanks a lot juss a hero for fun. I got 3 right out of 17. 😒

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9. What are the right answers sage you should be able to see after the test and if you can’t which ones did you get right

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10. Guys you have to put the words and not the letters

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B
B
A
C
D
A
A
A
B
A
B
B
D

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13. Correct answers Thanks a lot I GOT 3/18 U LIED! DO NOT LISTEN TO HIM!!! I will tell you the answers when my teacher finishes grading it

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14. the answers were switched around for everyone so only putting down the letter is useless, please somebody copy and paste the whole answers i need to check mine to see if they're right

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15. Please right out the response.

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16. Gotta write the whole response instead of the letters because they will be mixed around

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17. Oof dang. Trust no one here lol

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18. Someone please take the test and put the responses next to it and dont blame the other people because teachers change the questions around all the time. Come on fellow cheaters we need the right answers!

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19. probably not on the same unit or test i guess cause i took the test and failed for no reason then looked at the answers and put it on here so welp nothing i could do cya loser

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20. Here these are 100%
D
B
A
A
C
C
C
A
D
C
B
A
C
U can do the last one

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21. UNKNOWN UR SO WRONG NO WONDER UR MOM HATES YOU 3 CORRECT ANSWERS GO SCREW URSELF

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22. Can someone plz help. I need to check my answers

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c
d
a
b
c
d
d
d
b
b
c
b

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24. i got a 1 out of 17 trusting someone so i'll give u the answers it said after i took the test

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25. 1.Objects with the same charge repel each other, and objects with opposite charges attract each other.
2. The objects in interaction A are farther apart than in interaction B.
3.The atoms in glass hold on tightly to their negatively charged particles.
4.Insulators have high resistance, while conductors have low resistance.
5. If the current in circuit A is greater than the current in circuit B, then the resistance in circuit A is less than the resistance in circuit B.
6. The resistor decreases the current by transforming electrical energy into different types of energy
7. Electrical energy from the outlet is converted to heat and light energy for the toaster.
8. Energy from the sun might be greater than the energy needs of the house, so some energy will be stored and/or wasted.
9. The switch is open.
11. R, Q, P
12. As the number of turns in the wire increases, the strength of the electromagnet increases.
13. when electrons move through a circuit
14. you can do it all by your self

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26. they are 100% correct

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27. is emperor correct

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28. Is emperor correct?? Does anyone know??

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29. I just took the test. Make sure you guys don't just go through, but please legitimately try your best first; yes Emperor is correct.

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30. Emperor is 100% correct ty!

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31. i got 15 questions xP

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32. Emperor is correct tysm i didnt wanna do it myself Imao

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33. Emperor is 100% correct.
for # 14 you just need to look up some stuff on the internet and you'll find your answer quite easily.

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34. I just took the test using the Emperor's answers. He did a great job except that number one is actually C. Other then that Great Job!

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35. these tests answer placements are randomized, dont use anything that uses letters

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