Electrical Funtions

Question 1

Power Supply

Answer 1

Generates or provides electrical current

• battery
  ex. flashlight
• photoelectric cell
  ex. solar panel
• outlet
  ex. computer

Question 2

Conduction

Answer 2

provides electrical current from one part to another part
ex.wires, printed circuits

Question 3

Insulation

Answer 3

prevents electrical current from flowing
ex. glass on bulbs, plastic on wires, marrettes

Question 4

Protection

Answer 4

can automatically cut current flow in an event of a power surge

• fuses
• breaker
• resistors

Question 5

Control

Answer 5

can open or close a circuit
1) rocker
2) toggle switch
3) reed switch
4) push button switch

Question 6

Transformation of energy

Answer 6

transforms electrical energy from one energy to another

1) Energy -> Radiation
lightbulbs - flashlights

2) Energy -> Mechanical
quartz - speakers

3) Energy -> Thermal
heating element - stoves

4) Energy -> magnetic
electromagnets - doorbells