Quiz 1

Question 1

charge is __________

Answer 1

quantized / conserved

Question 2

the electric field equation:
use signs?

Answer 2

q=Ne
q = total charge
N = total number of electrons
e = single charge
use signs

Question 3

__________ transfer but __________ do not

Answer 3

electrons transfer but protons do not

Question 4

polarization means

Answer 4

charges shift and are neutral
(balloon on wall example)

Question 5

conductors vs insulators

Answer 5

conductors
- metals
- allow e- to transfer

insulators
- plastic
- hold more tightly

Question 6

Coloumb’s Law:
use signs?

Answer 6

F = k (q1q2/r^2)
electrostatic force between 2 charges
do not use signs

Question 7

gravity is always _____ but electrostatic forces can _____ or ______

Answer 7

attractive
attract or repel

Question 8

if a charge becomes neutral it had to be ______

Answer 8

polarized

Question 9

µC =

Answer 9

10^-6

Question 10

+q placed in an electric field will accelerate _____ the field of gravity

Answer 10

with

Question 11

-q placed in an electric field will accelerate ______ the field of gravity

Answer 11

against

Question 12

+q arrows always point _____

Answer 12

away

Question 13

-q arrows will always point ______

Answer 13

towards

Question 14

density of lines relates to the _______ of E

Answer 14

magnitude