Electricty 2

An example of a conductor is :

• a glass paperweight
• a plastic cap
• a metal screw
• a wooden handle

Wrapping a wire in a coil creates

• a strong magnetic field
• solar energy
• solenoid
• both a & c are true

When you scuff your feet on a rug, electric charges move off you by

• static discharge
• friction
• static discharge
• conduction

What causes current to flow?

• potential difference
• energy
• electricity
• magnetism

An example of a voltage source is a(n)

• magnet
• electrical wire
• battery
• a resisitor

In a series circuit  with 4 bulbs:

• a switch is never used
• all of the bulbs become dimmer if another bulb is added
• There are many paths for electricity to take
• the remaining 3 bulbs stay lit if one burns out

A device that uses electrical energy as it interferes with the flow of charge is a:

• resistor
• conductor
• insulator
• superconductor

An example of an insulator is:

• iron
• silver
• copper wire
• rubber

How are computers, hair dryers, and toasters all :

• are conductors
• contain electric circuits
• are all superconductors
• conduct static electricity

How are computers, hair dryers, and toasters all :

• are conductors
• contain electric circuits
• are all superconductors
• conduct static electricity