Academic Concepts

Sample Academic Concepts for Photon: 
Relevant academic concepts 
Gravity - a force that attracts two bodies that have mass 
    How does gravity effect the Photon robot on a floor? 

Friction - the resistance that one object encounters when moving across or through another 

    Where does friction occur? 
    Where should you increase friction to make your bot go fast? 
    Where should you decrease friction to make your bot go fast? 
    How can you increase or decrease friction? 

Torque - a measure of twisting force 

    What happens if you increase the diameter of your wheels? Do you go faster or                    slower? Does the torque increase or decrease? 
    What are some ways your could change the diameter of your wheels? 
    
Speed - a measure of distance over time 
    How fast can your bot go? 
    How could you determine your bots speed? 

Electricity - the flow of electrons 
    What is the source of electricity in your robot? 

Circuit - a path along which electrons can flow
    What does the electricity flow through in your robot? 
    What happens if you disconnect a wire from your robot's circuit? 

Short - the unintended flow of electricity across parts of a circuit. 
    What happens when you short the circuit?

Polarity - the direction of electron flow 
    What happens when you change the direction of electron flow in a circuit with an LED 
    connected? 
     What happens when you change the direction of electron flow in a circuit with an     
    motor connected? 

Voltage - a measure of electrical potential 
    How can you change the voltage of your bot with two batteries? 
    If you increase the voltage going to a motor what happens? 
    If you decrease the voltage going to a motor what happens? 

Amperage or current - a measure of the amount of electrons moving through a given material 

Magnetism is a force of attraction or repulsion that acts at a distance 

    Where are magnets used in your robot? 
    What happens if you remove them and then try to run your bot? 

Conductivity - the amount a material conducts or allows electricity to flow
    What materials on your bot conduct electricity?  

Insulator - a material that does not conduct electricity 
    What materials on your bot do not conduct electricity?  

Resistance - a measure of the conductivity of a material 
    Does an insulator have a hight electrical resistance or a low one? 

Photon - a packet of energy or radiation that behaves like a particle and a wave - we see it as light 

    Where are photons created by your bot? 
    What is the difference between a red LED and a green LED? 

Batteries wired in series - doubles voltage same capacity 
Batteries wired in parallel - doubles capacity same voltage


Leading through questions
What is electricity?
How is it created?
How is it measured?
    Predicating content
        Voltage
        Current
        Resistance
        V=IR

What is going on inside the breadboard?
    Predicating content
        Conductor/ insulator/ spring

What is a circuit?
What is an open circuit?
What is a closed circuit?
What is a short circuit?

What is going on inside a battery?
    Predicating content
        Anode
        Cathode
        Electrolyte
        Chemical reaction
        Series
        Parallel

What can batteries be used for?

What is an LED?
    What is going on inside the LED?
    Which leg is positive?
    What happens if you put the LED in backwards?

Predicating content
    Photons
    Photon emission
    Wavelengths

Resistors

What is going on inside the motor?
    Predicating content
        Permanent magnet
        Magnetic field
        Electromagnet (temporary magnet)
        Rght-hand rule /left-hand rule
        Basic 1 pole motor
        1.5-3v toy motor
        Contacts
        Contact springs
        Brushes
        Plastic cap
        Bearings
        Commutator
        Soft iron core
        Field windings
        Housing
        Permanent magnets
        Permanent magnet springs
        Axel

What happens when you reverse power wires?

What happens when you move the permanent magnets away?

What happens when you change the voltage?

What is going on inside the sliding switch?

What is going on inside the SPDT switch?

What direction is the electricity flowing?
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