Electricity 1

Question 1

Movement of charge (static electricity)

Answer 1

Only electrons move, not protons,
Electrons move because of friction
Which objects pick up or lose electrons depends on the material

Question 2

Buildup of static charge

Answer 2

Friction can cause static, both objects should be insulators because they do not allow the charge to move as easily

Question 3

Electric fields

Answer 3

When a charged object enters the field it experiences force, field lines show the direction of the force experienced by a POSITIVELY charged object when put in the field
The closer the lines the stronger the charge/force

Question 4

Current

Answer 4

Amps (A)
I

Question 5

Charge

Answer 5

Coulombs (C)
Q

Question 6

Time

Answer 6

Seconds (s)

Question 7

Charge ? Energy

Answer 7

Charge is not equal to energy

Question 8

Energy

Answer 8

Joules (J)
E

Question 9

Potential difference

Answer 9

Voltage
Volts
V

Question 10

Resistance

Answer 10

Ohms (Ω)
R

Question 11

Quit

Answer 11

Q
—-
I * T

Question 12

Veer

Answer 12

V
—-
I * R

Question 13

Evaquate

Answer 13

E
—-
V * Q

Question 14

Thermistor investigation

Answer 14

Question 15

I-V plot for resistor (at constant temp)

Answer 15

Question 16

I-V plot for filament bulb

Answer 16

Question 17

Series rules; current, PD,

Answer 17

Current is the same across the circuit
PD is shared across all the components

Question 18

Parallel rules; PD, current

Answer 18

PD is same across each path
Current is shared between all the loops (the paths with more resistance will have less current)

Question 19

Mains supply; current

Answer 19

Alternating current of 230v
50hz

Question 20

Wire colours

Answer 20

Live wire: brown
Earth wire: green/yellow
Neutral wire: blue