Define endometrium
Key Terms
Define endometrium
lining of the uterus
When one atom bonds to another by borrowing an electron is a called a _____ bond
Ionic bond
two atoms with the same amount of electrons and neutrons but different numbers of neutrons are called _____
Isotopes
Identify the value and abbreviation of metric system prefix: micro
Base x 0.000001
What is an element's atomic number?
The number of protons in one of the element's atoms
Rows of the periodic table refer to ______ columns of the periodic table refer to ______
Electron shells in atom; electron shells outside of atom
Related Flashcard Decks
| Term | Definition |
|---|---|
Define endometrium | lining of the uterus |
When one atom bonds to another by borrowing an electron is a called a _____ bond | Ionic bond |
two atoms with the same amount of electrons and neutrons but different numbers of neutrons are called _____ | Isotopes |
Identify the value and abbreviation of metric system prefix: micro | Base x 0.000001 |
What is an element's atomic number? | The number of protons in one of the element's atoms |
Rows of the periodic table refer to ______ columns of the periodic table refer to ______ | Electron shells in atom; electron shells outside of atom |
What is the common name for hypertension | high blood pressure |
The ozone layer is part of the _____ | Stratosphere |
Combination slip joint pliers are adjustable at the _____ | joint of two handles |
What is the difference between a ball peen hammer and a claw hammer | Ball peen has a rounded steel end opposite the striking force and a claw hammer has a bifurcated lever for removing nails |
A castellated nut uses a(n) _____ to hold it in place | Cotter pin |
an air wrench combines torque with a ____ to loosen fasteners | vibration |
_____ nuts can be loosened by hand | wing nuts |
a worker would use a _______ to join to two pieces of wood while glue used to bind them dries | Clamp |
What is the difference between tubular spirit level and a bullseye spirit level? | Tubular spirit level measures a levelness in one dimension while a bullseye spirit level measures a levelness in all dimensions |
What type of screwdriver would be used with a screw with this type of head? | Torx screwdriver |
a drill's chuck is identified by the ______ diameter drill bit it will hold | Largest |
What does AC and DC stand for? | Alternating current and direct current |
Electrical current flowing through a conductor produces a(n)______ field | Magnetic |
What is the difference between direct current and alternating current? | Direct current flows only in one directon whule alternating changes directions constantly |
The basic unit of electrical charge is the _______ | Coulomb |
If multiple loads are connected in a parallel circuit, how is the overall resistance of the circuit calculated? | 1/Rtot = 1/R1 + 1/R2 + 1/R3 |
in a series circuit, does the current vary, alternate, or remain the same throughout the circuit? | Remains the same |
Identify this symbol: | AC supply |
Identify this symbol: | battery |
Identify this symbol: | resistor |
Current and resistance are directly/inversely proportional? | Inversely |
Poor conductors have ______ resistance than good conductors | higher |
The name for the imaginary flow of positive charge, opposite to the actual flow of electrons is ________. | Conventional current |
A(n) ______ is constructed of two metal plates and used to store electricity | Capacitor |
if the resistance provided by a load were to decrease, the current flowing through that circuit would ______ | Increase |
What is voltage? | pressure produced by a large negative charge |
Identify this symbol: | variable resistor |
A(n) ________ resists changes in current flow by applying a voltage that runs against increased current | Inductor |
Identify this symbol: | Motor |
When a P-type semiconductor is joined to an N-type semiconductor, the result is a(n) ________. | Diode |
The three major parts of a transistor are | the collector, the emitter, and the base |
Identify this symbol: | Inductor |
Identify this symbol: | DC supply |
Identify this symbol: | fixed resistor |
A(n) _____ serves the same function as a fuse but can be used multiple times | Circuit breaker |
does a battery supply AC or DC current? | DC |
Identify this symbol: | Capacitor |
What does an ammeter do? | measures electrical current |
Resistance can be measured using a device called a(n) ______ | ohmmeter |
What is a short circuit? | when a load is bypassed by a conductor, allowing more current to flow through the circuit |
What three things must be present before combustion can occur in an internal combustion engines? | Inline, horizontally opposed, V-type |
What are TDC and BDC? | top dead center; bottom dead center |
What function does the cylinder perform? | serves as a guide for the piston to move in a upward and downward motion |
What are the four strokes of a four-stroke cycle from first to last | Intake, compression, power, exhaust |
In a double overhead cam arrangement, what does each cam do? | one operates the exhaust valve and the other operates the intake valve. |
What are the two advantages of a four valve cylinder head over a two valve cylinder head? | Higher engine operation speed, and more complete combustion of air-fuel mixture |
25 degrees BTDC (before top dead center) is an example of ________ ignition timing. | advanced ignition time |
what are two likely causes of pre-ignition | a glowing spark, a hot piece of carbon |
The transaxle in a front-wheel drive vehicle combines which two components that are normally distinct in a rear-wheel drive vehicle? | Transmission, Drive axle |
The _____ allows the left and right wheels to turn at different speeds while cornering | differential |
What does an automatic transmission use instead of a clutch? | Torque converter |
The ______ generates the fluid pressure to operate the brake assemblies at the wheels | Master cylinder |
What five functions does an engine's lubrication system perform? | lubricates, cools, seals, cleans, and quiets |
What is the function of the intake valve in an internal combustion engine? | Allows air-fuel mixture to be drawn into the combustion chamber |
What is a car's water jackets? | Hollow sections of the engine block through which coolant flows |
Define stoichiometric ratio | the ideal air-fuel mixture for insertion into the engine cylinder. For gasoline engines, this is 14.7:1 by weight. |
between the drive axle and the CV joints is a short drive shaft called the _______ | half shaft |
Spent fuel gases exit the cylinder and pass into the _______ | Exhaust manifold |
Diesel engines lack a _____ (a common element in gasoline-burning engines). | Spark ignition system |
Does an alternator produce DC or AC power? | AC |
What does a camshaft do? | opens and closes cylinders' intake and exhaust valves |
the low-voltage winding in a car's ignition system is called the ________ | Primary coil winding |
What is chiefly responsible for generating fluid pressure to operate a car's brakes? | The master cylinder |
What does a fuel rail do? | A fuel rail delivers fuel under pressure to the engine's fuel injectors. |
The camshaft is driven by the crankshaft by means of a _____. | Timing belt or timing chain |
Where is the oil filter positioned in an engine? | the oil filter filers oil after it leaves the oil pump and before it circulates through the engine |
_______ work by adjusting the brake pressure in each wheel depending on the wheel's speed | Anti-lock breaks |
Diesel engines employ _______ to ignite the air-fuel mixture | A high compression ratio |
What is a PCM? | Powertrain control module |
Engine coolant is usually composed of mixture of ____ antifreeze and _____ water | 50, 50 |
the ______ matches engine speed to the desired speed of the vehicle | transmission |
Internal combustion engines take ______ energy, convert it into ______ energy, and then into ______ energy | Chemical, heat, mechanical |
Most internal combustion engines employ a _____ stroke cycle | Four |
Define viscosity | The viscosity of a liquid is its resistance to flow |