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2B TPR Unit 4

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  • Why is it unsafe to turn off switches with wet hands?
    You might get electrecuted
  • What happens if you move two poles of the same sign together?
    repel
  • It allows us to turn the circuit on and off
    Control Devices
  • Instrument to measure voltage
    Voltmeter
  • What is the unit of measurement of electrical energy?
    Watt-hour (Wh) / Kilowatt-hour (kWh)
  • We use _______ to represent electrical circuits
    Electrical Diagram
  • Another word for electrical current (A) and symbol is I
    Amperage
  • What is the equation to get the electrical power?
    P = V x I
  • 3 things you need to assemble an electrical circuit
    Generator, Conductors, Receptor
  • give 3 examples of magnetic things
    Student's answer
  • the circulation of electrical charges is called
    electrical current
  • What is the electrical variable that uses this unit of measurement? (V)
    Voltage
  • What is this symbol?
    LDR (Light Dependent Resistor)
  • What is this electric component?
    Ceramic Resistors
  • Where do electrical charges circulate?
    Electrical Circuit
  • What is Ohm's Law?
    Student's Answer
  • What do you call the invisible force that magnets have over other objects?
    Magnetism
  • What material a conductor
    copper, gold etc.
  • What is DC? (always circulate in the same direction)
    Direct Current
  • The relationship between magnetism and electricity is
    electromagnetism
  • What is AC? (electric charges change directions 50 times per second)
    Alternative Current
  • Protects the circuit
    protective devices (example: fuse)
  • The part of the circuit that turns on/off the appliance
    the switch
  • What is an ammeter?
    to measure amperage
  • What is the equation for Ohm's Law?
    I = V/R
  • Where were magnets discovered?
    Magnesia
  • Mention 5 things that may appear on a circuit
    Belt, Bulb, Switch, Wire, Battery
  • creating a current in the wire when a magnet is placed closed to an electrical wire is called
    Electromagnetic Induction
  • The device makes the electrical connection between an appliance and the mains
    plug
  • What does electricity produce? give 3
    light, motion, sound etc.
  • What is the application we use in class for stimulating electricity?
    Crocodile Clips
  • Part of the circuit that transmits electricity from the mains to the appliance
    wire
  • What is the resistance that the circuit's components create for the flowing electrical current?
    Electrical Resistance
  • What does LED mean?
    Light Emitting Diode
  • What is the unit measurement of Electrical Power?
    Watt (W) or KiloWatt
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