electric charges that are different
A) attract each other
B) repel each other
C) exist in pairs
D) do not interact
Magnetic field lines around a bar magnet
A) are only perpendicular to the magnet
B) spread out from one pole and curve around the other
C) cross back and forth over one another
D) are perfectly straight
which of the following would decrease the magnetic field around the wire?
A) decreasing the current
B) reversing the The polls of the wire
C) looping a section of the wire into a solenoid
D) increasing the current
What device transforms electrical energy into mechanical energy?
A) an electromagnet
B) an electric motor
C) a generator
D) a solenoid
A device used to open and close an electric circuit is a(n)
A) light bulb
B) energy source
C) switch
D) resistor
According to Ohm's law resistance is equal to voltage devided by
A) time
B) conduction
C) current
D) potential
In a series circuit with three bulbs
A) The remaining two bolts will go out if one bulb burns out
B) The remaining two bulbs are not affected if one bulb burns out
C) The brightness of the light bulbs does not change if more bulbs are added
D) a switch is never used
The strength of the force of gravity depends on
A) The masses of the objects in their speeds
B) The masses of the objects and the distance between them
C) The weight of the objects in their speeds
D) The masses of the objects in their weight s
According to Ohm's law what is the resistance of a light bulb if the applied voltage is 9.0 V and the current is 0.30 amps?
A) 0.033 ohms
B) 2.7 ohms
C) 30 ohms
D) 8.7 ohms
An example of an insulator is
A) rubber
B) copper
C) silver
D) iron
The force of gravity on Jupiter is much stronger than the force of gravity on earth. Which of the following explains why this is true?
A) Jupiters orbit is farther away from the sun then earths orbit
B) Jupiter has more mass than earth
C) jupiters orbit is closer to the sun than earths orbit
D) Jupiter has less mass than earth
An electric current produces a
A) magnetic field
B) magnet
C) solenoid
D) insulator
A generator transforms
A) potential energy to kinetic energy
B) mechanical energy into electrical energy
C) mechanical energy into electrical energy
D) friction into electrical energy
The correct answers are:
1. a
2. b
3. a
4. b
5. c
6. c
7. a
8. b
9. c
10. a
11. b
12. a
13. b
14. true
I promise these are correct. I took the test. Hope this helps!
Just took the practice, these are the answers. In this order 1 - 14.
1. A
2. B
3. A
4. B
5. C
6. C
7. A
8. B
9. C
10. A
11. B
12. A
13. B
14. A [true]
Olivia is 100% correct
12 is a 13 is b 8 is b 5 is c 4 is b 2 is b
Olivia is correct.
1. A
2. B
3. A
4. B
5. C
6. C
7. A
8. B
9. C
10. A
11. B
12. A
13. B
14. A
100%
Thanks olivia also if anyone has the unit test answers for this unit please provide them
Olivia is correct
1. a
2. b
3. a
4. b
5. c
6. c
7. a
8. b
9. c
10. a
11. b
12. a
13. b
14. true
10000000
Why did I just scroll through all this?
1. A
2. B
3. A
4. B
5. C
6. C
7. A
8. B
9. C
10. A
11. B
12. A
13. B
14. True
Thanks to everyone who has hepled me get through sceince this year. Without you guys I probably would have failed sceince this semester.
thanks
dude just stop. XD btw Olivia thank you
Olivia is correct is promise
Btw thx ppl that posted the answers (sorry i forgot all ur names)
olivia is correct. 100%. thank you
All of these people are correct:
1. connections student
2. Olivia
3. Lily
4. TEA
5. boo
6. Hal
7. COCO
I accidentally clicked C for #4. But those people are correct 100%.
Hal is 100% correct!
Hal is correct
100%
Thanks for the answer's Olivia :D
Olivia ty. Arigato.
Olivia is correct. Thanks Olivia :)
connections student is correct.
thanks for the answers, Olivia
Thanks for the answers! I'm really behind in science so this really saved me!
Thanks, Olivia
Tank you Olivia, also for some reason my sister has school work tomorrow
THANK YOU SO MUCH OLIVIA!!!!!!
Olivia is right 2021, thank you
Olivias still correct!
1. A
2. B
3. A
4. B
5. C
6. C
7. A
8. B
9. C
10. A
11. B
12. A
13. B
14. True
100%14/41😙☺😚🥰😇✋✨🤟❤⚡😮💘💌💞❣🖤👏😎😊😉😘😂✌😁😃😌👧🏾🧡💛🤑💚💙💜💗✔🐱🏍🐱👤🎶🎉💖🤤👌💟😛🌝💓😜
ababccabcabab true
100%
No I just forgot to give my answers. Sorry my answers are
1) A
2) d
3) a
4) b
5) c
6) c
7) a
8) d
9) ?
10)?
11)b
12) b
13)d
Do you think your school approves of these test questions posted here?
It looks to me like you're wanting to cheat and have someone else give you these answers.