Question

Help please A?

Answer 1

keep in mind the magnetic poles are in the opposite orientation as the actual poles so the south pole acts like the north pole of a magnet

Answer 2

D

Answer 3

good

Answer 4

A

Answer 5

good

Answer 6

not sure about this one

Answer 7

they're permanent (just have to know this one)

https://www.magnetassemblies.com/bar-magnets/

Answer 8

I think this one is A?

Answer 9

hm. I'm not sure about this one and couldn't find any sources so we could go with A if you feel comfortable

Answer 10

B

Answer 11

well done

Answer 12

C

Answer 13

well done

Answer 14

D

Answer 15

another memorization based question but this one is a generator

Answer 16

D

Answer 17

good

Answer 18

A

Answer 19

hm. since the formula is qvsin(theta) and theta is 90, does sin take its maximum or mnimum value when theta = 90?

Answer 20

this is really important to know, not just for physics but for math

sin(theta) takes its maximum at 90 so the force is at its maximum

Answer 21

SO B

Answer 22

yes

Answer 23

C

Answer 24

excellent

Answer 25

Um not sure about this one ,,A?

Answer 26

check again, compare how the orientation of the hand in the problem compares to this chart

Answer 27

oh wait nvm yeah I think it's A too

Answer 28

C

Answer 29

I really don't know about this one :S

Answer 30

@Shadow

Answer 31

@Shadow

Answer 32

https://www.eia.gov/energyexplained/index.cfm?page=electricity_delivery