quiz 1/21

Question 1

what is electricity?

Answer 1

the flow of electrons from place to place

Question 2

what is a gradient?

Answer 2

a difference in concentration of something

Question 3

what is a current?

Answer 3

the flow of electrons, measured in amps

Question 4

what is resistance?

Answer 4

opposition to the flow of the current, measured in ohms

Question 5

ohms law?

Answer 5

v=ixr

Question 6

what is a series circuit?

Answer 6

only 1 continuous path for the electricity to flow

Question 7

parallel circuit?

Answer 7

multiple paths for electricity to flow?

Question 8

what are the factors that affect resistance?

Answer 8

• diameter of wire
• length of wire
• temp. of wire
• type of wire

Question 9

in a series circuit, what is constant?

Answer 9

current

Question 10

in a paralell circuit, what is constant?

Answer 10

voltage

Question 11

luigi galvani

Answer 11

1780, researched frogs
was dissecting a frog on an iron table
touched brass hook to iron while in frog, made spark

Question 12

alassandra volta

Answer 12

used galvani’s research to make the first battery

Question 13

what was the first battery made out of?

Answer 13

layered zinc, salty water paper, and silver

Question 14

what is an electrade?

Answer 14

piece of metal sitting on an electryte

Question 15

what is an electrolyte?

Answer 15

a substance, liquid or paste, that conducts electric current

Question 16

what is a terminal?

Answer 16

the part of the electrolyte that sticks out

Question 17

what is a battery?

Answer 17

a combination of 2 or more electrochemical cells