ELECTRICITY

Question 1

What is electricity ?

Answer 1

A form of energy that can involve the movement of charge

Question 2

Define a conductor

Answer 2

Heat can be transmitted through it

Eg. Metal

Question 3

Define an insulator

Answer 3

Heat cannot be transmitted through it
Eg. Wood, Rubber, Plastic
(Wendy,Runs,Perfectly)

Question 4

Static electricity

Answer 4

A stationary electrical charge that builds up when two objects rub together

Question 5

What do all electrical circuits require ?

Answer 5

Power,pathway and load

Pretty,Parrots,Lurk

Question 6

Conventional current

Answer 6

POSITIVE

Moves in the same direction as the positive charge flows

Question 7

Electron flow

Answer 7

NEGATIVE

moves in the same direction of negative charge

Question 8

Current

Answer 8

Flow of electrical charge 
Measured in AMPS
known as (i)

Question 9

Voltage

Answer 9

A force expressed in volts
Measured in VOLTS
known as (v)

Question 10

Resistance

Answer 10

The friction in an electrical circuit that controls the flow of the current
Measured in OHM
known as (R)

Question 11

Series circuits

Answer 11

Current is the same through each part

Sum of the voltage across components is equal to the sum across the circuit

Question 12

Parallel circuits

Answer 12

Two or more pathways
Voltage is the same across all
Sum of currents is equal to the total current flow

Question 13

What is a voltmeter used to measure ?

Answer 13

Electrical charge between two points in an electrical circuit

Question 14

How is a voltmeter connected in a circuit

Answer 14

Connected in parallel with a devise to measure its voltage

Question 15

What is an ammeter used to measure ?

Answer 15

The current in a circuit

Question 16

How is an ammeter connected in a circuit

Answer 16

Connected in series with a devise to measure the current

Question 17

Relationship between voltage, current and resistance

Answer 17

Described as OHM’s la
Equation~ i= v/r
(1 OHM= 1(v)