current electricity

Question 1

Electrical energy

Answer 1

Energy that comes from a charge

Question 2

Current electricity

Answer 2

The flow of electrons through a circuit

Question 3

Electric circuit

Answer 3

A loop that allows electrons to flow continuosly

Question 4

Ammeter

Answer 4

An instrument used to measure current

Question 5

Ampere/Amp

Answer 5

Unit for current

Question 6

Electrons flow from the ___________ pole of the battery to the __________ pole

Answer 6

negative pole of the battery to the positive pole

Question 7

Insulator

Answer 7

A material that doesn’t let current electricity flow

Question 8

Conductor

Answer 8

A material that lets current electricity flow

Question 9

Resistance

Answer 9

How difficult it iis for a current to flow through an electrical component

Question 10

Ohmeter

Answer 10

Measures resistance

Question 11

Unit for resistance

Answer 11

Ohm

Question 12

Potential difference

Answer 12

(Voltage) The pushing force from an electrical power source that makes electrons move through a circuit

Question 13

Voltmeter

Answer 13

Instrument used to measure potential difference

Question 14

Unit for potential differemce

Answer 14

Volts

Question 15

Ohm’s law

Answer 15

/V\
/I R\

Question 16

Electrical power

Answer 16

P = V(I)
Power = Voltage x Current

Question 17

Series circuit

Answer 17

All components are connected in a single loop

Question 18

Parallel circuit

Answer 18

The components are connected in more than 1 loop or branch

Question 19

Series circuit:
Description, Current, voltage, if a bulb blows

Answer 19

Description; Single loop
Current; Current is the same for all components
voltage: Divided between components
if a bulb blows: All lights turn off

Question 20

Parallel circuit:
Description, Current, voltage, if a bulb blows

Answer 20

Description: Branches
Current: Spit across different branches
voltage: The same as the source for each component
if a bulb blows: Only lights on the incomplete branch turn off

Question 21

Direct current

Answer 21

Current flows in 1 direction

Question 22

Alternating current

Answer 22

Current flows in both dirrections

Question 23

Rectifier

Answer 23

Converts alternating current into direct current for appliances

Question 24

Diode

Answer 24

Only allows the current to flow in 1 direction

Question 25

LED

Answer 25

Light Emitting Diode

Question 26

LDR

Answer 26

Light Dependent Resistor

Question 27

Circuit breakers

Answer 27

If the current is too strong, the circuit breaker will turn the circuit off to prevent an overload

Question 28

Fuses

Answer 28

If a fault occurs, the fuse melts, breaking the circuit