electricity

Question 1

static electricity (4)

Answer 1

• build up of electrons
• fast movement of electrons between objects
• stays in 1 place
• when 2 insulators rub togetha

Question 2

current electricity (2)

Answer 2

• steady flow of electrons

- needs conductive closed wire to flow

Question 3

semi conductor (1)

Answer 3

insulator when cold and conductor when hot

Question 4

conventional current direction (1)

Answer 4

electrons pushed out of - end of battery to be attracted by + end

Question 5

charge formula (1)

Answer 5

charge (Q meas. C) = current (I meas. A) x time (t meas. s)

Question 6

voltage formula (1)

Answer 6

voltage (V) = energy (meas. J)/Q (meas. C)

Question 7

resistance (3)

Answer 7

• current doesnt pass thru as easily
• thin + long = wore resistance
• measure in Ohms

Question 8

resistance in series formula

Answer 8

R = V/I

Question 9

potential difference (1)

Answer 9

voltage

Question 10

resistance in parallel formula (1)

Answer 10

1/RT = 1/R1 + 1/R2