Electric Vehicle
What is the average range of an EV?
220 miles
What type of power, AC or DC, do the batteries put out?
Direct Current (DC) power
How many levels of charging stations are there in the U.S. for EVs?
3 levels
How many types of EVs are on the market?
2 main types
How long does it take for a full charge of an EV battery using the Level 1 charger?
20 hours or more
Is the polarity of the sets of magnets in an EV's motor charged differently or the same?
The same
Where does the exhaust exit the vehicle, after leaving the exhaust system?
Out of the back of the vehicle
What is the measure of an EV battery's capacity?
Kilowatt-hours (kWh)
How many sets of magnets are inside of an EV's motor?
Two
Why are the individual cylinders' cycles offset from each other and evenly spaced?
So that the combustion strokes do not occur simultaneously and so that the engine is as balanced and smooth as possible
Between 2 and 12
What is an EVs battery pack made up of?
Groups of lithium-ion batteries, or cells
What is the typical number of strokes in almost all of today's internal-combustion engines?
Four strokes
What is a heat engine that converts energy from the heat of burning gasoline into mechanical work
An internal-combustion engine
Instead of running on gas, what do EVs rely on to turn the electric motor (or motors) connected to the wheels and drive the car forward?
Electrical energy stored in their battery packs
What type of engine pumps additional air into the engine, which increases the available oxygen and thus the amount of fuel that can be burned—resulting in more power?
Turbocharging and supercharging engines
What are the metal tubes that contain the pistons called?
Cylinders
What is the device in an EV that is needed to keep flipping the polarity of the magnets, so they constantly repel one another?
An inverter
Name each of the strokes in an internal-combustion engine.
Combustion (Power), intake, compression, and exhaust
What connects the pistons to the crankshaft?
Which stroke is responsible for getting the wheels on the car rolling?
Combustion (power) stroke
What are the two different batteries that are used in EVs?
nickel cobalt manganese (NCM) and lithium iron phosphate (LFP)
What 2 things mix together, causing the tiny controlled explosions within the cylinders?
Fuel and oxygen
What ignites the air and fuel mixture, just before the piston reaches the top of its travel?
The spark plug
How many times per second does an EV's inverter flip the polarity of the magnets?
Around 60 times per second