Science 9: Unit 4 - Electricity MEGA QUIZ

Positive Charge: Not enough Too many Balance of( Not enough, Too many, Balance of ) electrons compared to protons
Negative Charge: Too many Not enough Balance of( Too many, Not enough, Balance of ) electrons compared to protons
Neutral Charge: Balance of Not enough Too many( Balance of, Not enough, Too many ) electrons and protons 

Current electricity flows from negative to positive positive to negative( negative to positive, positive to negative ).

Fill in the Blanks for Dry Cells:

Use a paste liquid( paste, liquid ) electrolyte. The electrolytes mix together and create free electrons static protons( free electrons, static protons ). These electrons flow through an electrode electrolyte( electrode, electrolyte ) and a wire from the negative to positive positive to negative( negative to positive, positive to negative ) terminal.

Fill in the Blanks for Wet Cells:

Uses liquid paste( liquid, paste ) electrolyte. A negative positive( negative, positive ) electrode electrolyte( electrode, electrolyte ) soaks in the electrolyte electrode( electrolyte, electrode ) and dissolves, which creates free electrons static protons( free electrons, static protons ) that flow through it over to the next positive negative( positive, negative ) terminal.

Primary Cells: Non-rechargeable Rechargeable( Non-rechargeable, Rechargeable )
Secondary Cells: Rechargeable Non-rechargeable( Rechargeable, Non-rechargeable )

Direct Current: Current moves in one direction two directions back and forth( one direction, two directions, back and forth )
Alternate Current: Current moves back and forth one direction two directions( back and forth, one direction, two directions )

Electric Circuit: A pathway used to control electricity. It flows as long as there's:
forms)
- There's an energy source insulator( energy source, insulator )
- There's a complete path incomplete path( complete path, incomplete path )

Open Circuit: Doesn't make a complete loop Makes a complete loop( Doesn't make a complete loop, Makes a complete loop ); doesn't work works( doesn't work, works )
Closed Circuit: Makes a complete loop Doesn't make a complete loop( Makes a complete loop, Doesn't make a complete loop ); works doesn't work( works, doesn't work )

Parts of a circuit:
An Energy Source: A battery A wire Something to power( A battery, A wire, Something to power )
A Conductor: A wire A battery Something to power( A wire, A battery, Something to power )
A Load: Something to power A battery A wire( Something to power, A battery, A wire )

What are the Units used for each?

Current - Amperes Volts Watts( Amperes, Volts, Watts )
Voltage - Volts Amperes Watts( Volts, Amperes, Watts )
Resistance - Ohms Joules %( Ohms, Joules, % )

Switch: Controls the flow of electrons but closing and opening the circuit by lowering power levels by raising power levels( but closing and opening the circuit, by lowering power levels, by raising power levels ) Eg. Lightswitch Dimmer switch( Lightswitch, Dimmer switch )
- Off = Open Closed( Open, Closed )
- On = Closed Open( Closed, Open )

Rheostat(Variable Resistor): Adjusts the resistance (difficulty to flow)by extending and shortening wire by heating and cooling wire( by extending and shortening wire, by heating and cooling wire ) Eg. Dimmer switch
- More Less( More, Less ) resistance = Less More( Less, More ) power = Dimmer Brighter( Dimmer, Brighter ) lights

Series Circuit: A circuit that has all of its components in a row many paths for each component( all of its components in a row, many paths for each component )
- More devices = More resistance Less resistance( More resistance, Less resistance )
Parallel Circuit: A circuit that has many paths for each component all of its components in a row( many paths for each component, all of its components in a row )
- More devices = Less resistance More resistance( Less resistance, More resistance )

Ohms Law: As long as the temperature resistance current and voltage( temperature, resistance, current and voltage ) stays the same, the resistance temperature current and voltage( resistance, temperature, current and voltage ) is constant, and the current and voltage resistance temperature( current and voltage, resistance, temperature ) are proportional disproportional( proportional, disproportional ).

Current and Voltage goes up goes down( goes up, goes down ) = Resistance goes down goes up( goes down, goes up )

Potential Energy: Energy being stored in motion( being stored, in motion )
Kinetic Energy: Energy in motion being stored( in motion, being stored )

Electromagnet: A wire wrapped around an iron core. It creates a temporary permanent( temporary, permanent ) magnet.
- The direction of current = Polarity Strength of the magnet( Polarity, Strength of the magnet )
- Amperage in the wire/ Amount of coils = Strength of the magnet Polarity( Strength of the magnet, Polarity )

Electric Motor: Converts electrical mechanical( electrical, mechanical ) energy into mechanical electrical( mechanical, electrical ) energy. Has an electromagnet(coil and iron core) permanent magnet( electromagnet(coil and iron core), permanent magnet ) rotating on an armature around permanent magnets electromagnet( permanent magnets, electromagnet ). Every time the electromagnet permanent magnet( electromagnet, permanent magnet ) rotates, a communitator brush( communitator, brush ) switches the direction polarity( direction, polarity ) of the current, making the magnets continuously spin.

Electromagnetic Induction: Converts mechanical electrical( mechanical, electrical ) energy to electrical mechanical( electrical, mechanical ) energy. The electromagnet permanent magnet( electromagnet, permanent magnet ) is rotated by mechanical electrical( mechanical, electrical ) means with permanent magnets electromagnets( permanent magnets, electromagnets ) surrounding it. 

Law of Conservation of Energy: Energy cannot can( cannot, can ) be created or destroyed, it is only converted. So no matter what, an electrical device's output energy is the same as different from( the same as, different from ) the input because some is released as heat or light, etc.

Dam: Using water steam( water, steam ) to turn a turbine. Expensive Destructive Polluting( Expensive, Destructive, Polluting ), high medium low( high, medium, low ) energy output.
Coal: Uses steam water( steam, water ) to turn a turbine. Polluting Expensive Destructive( Polluting, Expensive, Destructive ), high medium low( high, medium, low ) energy output.
Nuclear: Splitting an atom Using burning( Splitting an atom, Using burning ) to create electricity. Destructive Expensive Polluting( Destructive, Expensive, Polluting ), high medium low( high, medium, low ) energy output.
Solar: Converts sunlight wind( sunlight, wind ) to electricity. Takes up space, medium high low( medium, high, low ) energy output.
Wind: Uses wind sunlight( wind, sunlight ) to turn a turbine. Takes up space, high medium low( high, medium, low ) energy output.