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Officer Candidate / Aptitude tests (AFOQT) Technical and Physical Sciences Flashcards
50 question-and-answer cards covering Technical and Physical Sciences as it is examined in Officer Candidate / Aptitude tests (AFOQT). 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Technical and Physical Sciences deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
What is the SI unit of work and energy?
The joule (J), equal to one newton-meter.
What is the formula for power?
P = W / t; power equals work done divided by time, measured in watts.
What is the formula for kinetic energy?
KE = 1/2 m v squared; one-half mass times velocity squared.
What is the formula for gravitational potential energy?
PE = mgh; mass times gravitational acceleration times height.
State the Law of Conservation of Energy.
Energy cannot be created or destroyed, only transformed from one form to another; total energy stays constant.
How is one horsepower related to watts?
One horsepower equals about 746 watts.
What is Ohm's Law?
V = I x R; voltage equals current times resistance.
What is the formula for electrical power?
P = V x I; power equals voltage times current (also P = I squared x R).
How do current and voltage behave in a series circuit?
Current is the same through all components; voltage divides among them and resistances add together.
How do current and voltage behave in a parallel circuit?
Voltage is the same across each branch; current divides among branches and total resistance decreases.
What are the SI units for current, voltage, and resistance?
Current in amperes (A), voltage in volts (V), and resistance in ohms.
What is the rule for magnetic poles?
Like poles repel and unlike poles attract; magnetic poles always come in pairs (north and south).
What is electromagnetic induction?
A changing magnetic field through a conductor induces a voltage/current (basis of generators and transformers).
What is the difference between a conductor and an insulator?
A conductor allows electric charge to flow easily (e.g., copper); an insulator strongly resists charge flow (e.g., rubber, glass).
State the First Law of Thermodynamics.
Energy is conserved: the change in internal energy of a system equals heat added minus work done by the system.
State the Second Law of Thermodynamics.
Heat flows naturally from hot to cold, and the entropy (disorder) of an isolated system tends to increase.
What are the three methods of heat transfer?
Conduction (direct contact), convection (movement of fluids), and radiation (electromagnetic waves).
What is the difference between heat and temperature?
Temperature measures average kinetic energy of particles; heat is the total thermal energy transferred between objects due to temperature difference.
At what temperatures does water freeze and boil on the Celsius scale (at sea level)?
Freezes at 0 degrees C and boils at 100 degrees C.
What is the relationship between a wave's speed, frequency, and wavelength?
v = f x lambda; wave speed equals frequency times wavelength.
What is the difference between a transverse and a longitudinal wave?
In a transverse wave the medium vibrates perpendicular to wave travel (e.g., light); in a longitudinal wave it vibrates parallel (e.g., sound).
What is the Doppler effect?
The apparent change in frequency/pitch of a wave due to relative motion between source and observer (higher pitch approaching, lower receding).
What is amplitude and what does it determine for a sound wave?
Amplitude is the maximum displacement from rest; for sound it determines loudness (volume).
In mechanics, what are the SI base units for force, and how do they combine in a newton?
One newton equals one kg times m/s squared (kg-m/s squared), the force that accelerates 1 kg at 1 m/s squared.
What this deck covers
The Technical and Physical Sciences deck follows the Officer Candidate / Aptitude tests (AFOQT) Technical and Physical Sciences syllabus — 3 chapters and 10 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 16.7 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 91 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Technical and Physical Sciences flashcards FAQ
How many Technical and Physical Sciences flashcards are in this Officer Candidate / Aptitude tests (AFOQT) deck?
50 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these Officer Candidate / Aptitude tests (AFOQT) flashcards free?
Yes. The preview here is free to read with no signup, and the full 50-card deck is free inside the Examius app.
What do the Technical and Physical Sciences cards cover?
They follow the Officer Candidate / Aptitude tests (AFOQT) Technical and Physical Sciences syllabus — 3 chapters and 10 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.