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2B TPR Unit 4
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What does electricity produce? give 3
light, motion, sound etc.
What material a conductor
copper, gold etc.
Why is it unsafe to turn off switches with wet hands?
You might get electrecuted
Part of the circuit that transmits electricity from the mains to the appliance
wire
Mention 5 things that may appear on a circuit
Belt, Bulb, Switch, Wire, Battery
The part of the circuit that turns on/off the appliance
the switch
The device makes the electrical connection between an appliance and the mains
plug
What is the application we use in class for stimulating electricity?
Crocodile Clips
creating a current in the wire when a magnet is placed closed to an electrical wire is called
Electromagnetic Induction
What is the equation for Ohm's Law?
I = V/R
give 3 examples of magnetic things
Student's answer
The relationship between magnetism and electricity is
electromagnetism
What do you call the invisible force that magnets have over other objects?
Magnetism
Where were magnets discovered?
Magnesia
What is the unit of measurement of electrical energy?
Watt-hour (Wh) / Kilowatt-hour (kWh)
What is the equation to get the electrical power?
P = V x I
What is the unit measurement of Electrical Power?
Watt (W) or KiloWatt
What is Ohm's Law?
Student's Answer
What is the resistance that the circuit's components create for the flowing electrical current?
Electrical Resistance
What is an ammeter?
to measure amperage
Another word for electrical current (A) and symbol is I
Amperage
Instrument to measure voltage
Voltmeter
What is the electrical variable that uses this unit of measurement? (V)
Voltage
What does LED mean?
Light Emitting Diode
What is this symbol?
LDR (Light Dependent Resistor)
What is this electric component?
Ceramic Resistors
What is AC? (electric charges change directions 50 times per second)
Alternative Current
What is DC? (always circulate in the same direction)
Direct Current
We use _______ to represent electrical circuits
Electrical Diagram
Protects the circuit
protective devices (example: fuse)
It allows us to turn the circuit on and off
Control Devices
3 things you need to assemble an electrical circuit
Generator, Conductors, Receptor
the circulation of electrical charges is called
electrical current
Where do electrical charges circulate?
Electrical Circuit
What happens if you move two poles of the same sign together?
repel
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