AP Physics 1: 250 Concepts, Relationships and Limits
Knowing conservation of energy is not the same as knowing when it does not hold.
카드 250장
수록 카드 30장 보기
전체 250장 중 30장을 발췌해 보여 주고 있습니다.
| 앞면 | 뒷면 |
|---|---|
| Position-time graph — what is it? | A graph of position against time. The area under a position-time graph has no physical meaning. |
| Constant acceleration — what is it? | Motion in which velocity changes at a steady rate. The kinematic equations apply only when acceleration is constant. |
| Free fall — what is it? | Motion under the influence of gravity alone. Air resistance is neglected. Real falling objects reach a terminal speed. |
| Relative velocity — what is it? | The velocity of one object as measured in the frame of another. The order of subtraction matters and reversing it reverses the direction. |
| Force — what is it? | A push or a pull that one object exerts on another. A force is an interaction, not something an object possesses or carries with it. |
| Free-body diagram — what is it? | A diagram showing all forces acting on a single object. Never include forces the object exerts on other things, and never include acceleration as a force. |
| Newton's first law — what is it? | An object at rest stays at rest and an object in motion continues at constant velocity unless a net force acts. It does not say that no forces act, only that they cancel. |
| Weight — what is it? | The gravitational force exerted on an object. Weight changes on another planet even though the mass does not. |
| Static friction — what is it? | The force that prevents surfaces from sliding relative to each other. Using the maximum value when the object is not on the verge of slipping is wrong. |
| Tension — what is it? | The pulling force transmitted along a string, rope or cable. Tension pulls and never pushes, so its direction is always away from the object along the string. |
| Spring force — what is it? | The restoring force exerted by a stretched or compressed spring. It is measured from the natural length, not from any convenient starting position. |
| Forces on an incline — what is it? | The forces acting on an object resting on a slope. The component along the surface uses the sine of the angle, not the cosine. |
| Kinetic energy — what is it? | The energy an object has because of its motion. It is a scalar and is never negative, whatever the direction of motion. |
| Work-energy theorem — what is it? | The statement that the net work done on an object equals its change in kinetic energy. It uses the net work, so the work of every force must be included. |
| Power — what is it? | The rate at which work is done or energy is transferred. Power is not energy. A small motor can do the same work as a large one, given more time. |
| Dissipative force — what is it? | A force that converts mechanical energy into internal energy. The energy is not destroyed. It is spread among many particles. |
| Momentum — what is it? | The product of an object's mass and its velocity. Momentum is not energy. Two objects can share a momentum and have very different kinetic energies. |
| Centre of mass — what is it? | The point at which the mass of a system can be considered concentrated. It need not lie within any of the objects, as with a ring. |
| Angular position — what is it? | The angle locating a rotating object relative to a reference direction. Degrees must be converted to radians before rotational relationships are used. |
| Centripetal acceleration — what is it? | The acceleration directed toward the centre of a circular path. It exists even at constant speed, because the direction of velocity keeps changing. |
| Torque — what is it? | The turning effect of a force about an axis. A force through the axis produces no torque however large it is. |
| Rotational inertia — what is it? | The resistance of an object to angular acceleration. It is not a fixed property of an object. It changes when the axis changes. |
| Rotational form of the second law — what is it? | The relationship between net torque and angular acceleration. The rotational inertia takes the role of mass, and it is not the same as mass. |
| Angular momentum — what is it? | The rotational analogue of linear momentum. It depends on the axis chosen, so the axis must be stated. |
| Newton's law of universal gravitation — what is it? | The statement that every mass attracts every other mass. The distance is measured between centres, not between surfaces. |
| Orbital motion — what is it? | The motion of a satellite held in a circular path by gravity. A satellite in orbit is in free fall, not weightless because gravity has vanished. |
| Simple pendulum — what is it? | A mass swinging on a light string. The period does not depend on the mass of the bob. |
| Superposition — what is it? | The principle that overlapping waves add displacement by displacement. The waves pass through each other unchanged after overlapping. |
| Sound as a wave — what is it? | A longitudinal pressure wave travelling through a medium. Sound cannot travel through a vacuum. |
| Electric charge — what is it? | A property of matter that produces electrical forces. Charge is conserved. It is transferred, never created. |
이 덱 소개
A student who can write conservation of mechanical energy still gets the wrong answer on a rough incline. A student who knows the momentum principle still misapplies it when a pivot supplies an external force. Physics rewards knowing a relationship and its conditions together, and most lost marks come from applying a correct equation in a situation it was never valid for. This deck is 250 cards, one quantity, law or concept per card, with the back giving what it states and, where it applies, a line on what it is confused with or the case where it fails. The sections follow the course: kinematics, forces and Newton's laws, work, energy and power, momentum and collisions, rotation and gravitation, and oscillations, waves and circuits. No worked numbers appear. Relationships are written inline as sentences, because the exam rewards reasoning stated in words at least as much as a computed value. Once the deck is on a spaced-repetition schedule, the relationships you can already place stop coming back and the pairs you keep reversing return until they stop being guesswork.
자주 묻는 질문
- What is in each section of the deck?
- Kinematics has 35 cards, forces and Newton's laws 45, work, energy and power 40, momentum and collisions 35, rotation and gravitation 45, and oscillations, waves and circuits 50, for 250 in total. Every card carries section and subtopic tags, so you can drill only rotation, only circuits, or only energy.
- Are there worked calculations?
- No. Cards describe relationships in words and symbols rather than substituting numbers. The reason is that the hard part of a physics problem is choosing which principle applies and checking its conditions, and that choice is made before any arithmetic starts. Numerical practice still has to happen on problem sets.
- Does it cover the qualitative reasoning questions?
- Directly. The exam asks students to explain why something happens and to justify a claim with physics principles, and the third line on every card names the misconception those questions are usually built around. Writing full paragraph answers is still separate practice.
- Can I import the whole deck on the free plan?
- Yes. Importing a saved deck runs no new AI generation and does not use your AI allowance, so the free plan imports all 250 cards. You can study, edit and delete them afterwards.
- Will importing it twice create duplicates?
- No. Cards you already have are skipped and only cards added in a revision come through. Including re-imports after deleting it, one official deck can be imported three times per account.
- Can I use it on the web and in the mobile app?
- Yes. The deck is added to your account rather than to a device, so the same cards and the same progress are there on the web, on iOS and on Android.
- Can I edit the cards after importing?
- Yes. Imported cards are yours: you can edit both sides, delete cards you do not need, change tags, and move cards to another deck.
No official exam questions are reproduced. Every card was written for this deck.Advanced Placement is a trademark of College Board. This deck is not produced, endorsed or approved by College Board.Editorial reference date 2026-08-31.