Components

• This is a resistor

  
• This is an ammeter

  
• This is a voltmeter

  
• This is a variable resistor

  
• This is a diode

  
• Diode = allows current to go one way
• identifying a diode = measure I, flip battery; if a diode I stops because it only lets I go one way
• This is a diode graph

  
• Temperature sensitive resistor = when temp increases, resistance decreases, current increases
• light dependant resistor = when light increases, resistance decreases (more light= less resistance = more Current = more elec)