NTN FireTEAM flashcards
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32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Mechanical advantage
- The ratio of output force to input force in a machine; a value greater than one means the machine multiplies the applied effort.
- Lever classes
- Class 1 places the fulcrum between effort and load; class 2 places the load between them; class 3 places the effort in the middle.
- Gear ratio
- Driven gear teeth divided by driving gear teeth; a ratio above one reduces speed while increasing torque at the output.
- Movable pulley effect
- A single movable pulley halves the effort needed to lift a load but requires pulling twice as much rope.
- Pressure formula
- Pressure equals force divided by the area over which it acts, so spreading force over more area lowers pressure.
- Buoyancy and density
- An object floats in a fluid when its density is less than the fluid's density and sinks when its density is greater.
- Work definition
- Work equals force times the distance moved in the direction of the force; no movement means no work is done.
- Series vs parallel
- In series, current is constant and resistances add; in parallel, voltage is constant across branches and current splits.
- Heat transfer direction
- Heat always flows spontaneously from a warmer object to a cooler one until both reach the same temperature.
- Active listening
- A communication technique where the listener summarizes or restates the speaker's message to confirm understanding before replying.
- Conflict resolution steps
- Identify the problem, hear both perspectives, propose options, agree on a solution, and follow up to confirm it worked.
- Chain of command
- The formal line of authority; concerns go first to the immediate supervisor and escalate upward only when unresolved.
- I-statements
- Phrasing that describes your own observation and feeling rather than accusing, reducing defensiveness during a difficult conversation.
- Constructive feedback
- Feedback that is specific, focused on behavior, given promptly, and paired with a clear path to improvement.
- Workplace confidentiality
- Personnel and medical information is shared only with individuals who have a legitimate need to know it.
- Nonverbal communication
- Posture, eye contact, facial expression, and tone of voice that accompany and can modify the meaning of spoken words.
- Percent change
- New value minus old value, divided by old value, times 100; a positive result is an increase, negative a decrease.
- Finding a part
- Convert the percent to a decimal by dividing by 100, then multiply by the whole to get the part.
- Order of operations
- Evaluate parentheses first, then exponents, then multiplication and division left to right, then addition and subtraction left to right.
- Mean calculation
- Add all the values in a set and divide the sum by the number of values to find the average.
- Unit rate
- The cost or quantity per single unit, found by dividing the total amount by the number of units.
- Dividing fractions
- To divide by a fraction, multiply by its reciprocal, flipping the numerator and denominator of the divisor.
- Triangle area
- The area of a triangle equals one-half times the base length times the perpendicular height.
- Proportion solving
- Set two ratios equal, then cross-multiply and divide to find the unknown value in the proportion.
- Main idea
- The central point that an entire passage supports; supporting details explain or illustrate it rather than replace it.
- Inference
- A conclusion that follows logically from the text even though the author never states it directly.
- Fact versus opinion
- A fact can be verified or proven; an opinion expresses a judgment, belief, or feeling that cannot be proven.
- Transition words
- Words such as however, therefore, and although that signal contrast, conclusion, or concession between ideas.
- Author's tone
- The author's attitude toward the subject, revealed through word choice and phrasing rather than stated outright.
- Run-on sentence
- Two independent clauses joined without correct punctuation; fix it with a period, semicolon, or coordinating conjunction.
- Subject-verb agreement
- A singular subject takes a singular verb and a plural subject takes a plural verb, ignoring phrases between them.
- Parallel structure
- Items in a list or series use the same grammatical form, such as all gerunds or all infinitives.