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  3. AP Physics 1 - 2018 FRQ Review: Circular Motion & Gravity

ap physics 1 - 2018 frq review: circular motion & gravity

originally streamed in 2020 with Peter AppsTeacher
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Review the 2018 AP Physics 1 FRQs with detailed solutions for orbital mechanics, rotational dynamics, and spring oscillations. This session walks through spacecraft orbits, spinning disc problems, experimental modeling, and block-spring systems—perfe ...more

curriculum note

This video was recorded during the 2020 COVID remote exam season and repeatedly references an open-book, at-home exam format; the current AP Physics 1 exam is administered in-person under standard test conditions.

covered in this stream

units
Unit 2 – Force and Translational DynamicsUnit 5 – Torque and Rotational DynamicsUnit 6 – Rotating Systems: Energy & MomentumUnit 7 – OscillationsUnit 4 – Linear Momentum
topics
2.2 Forces and Free-Body Diagrams2.5 Newton's Second Law2.6 Gravitational Force2.9 Circular Motion6.6 Motion of Orbiting Satellites5.1 Rotational Kinematics5.3 Torque5.4 Rotational Inertia5.6 Newton's Second Law in Rotational Form6.3 Angular Momentum and Angular Impulse4.3 Conservation of Linear Momentum4.4 Elastic and Inelastic Collisions7.2 Frequency and Period of SHM7.4 Energy of Simple Harmonic Oscillators3.4 Conservation of Energy

timestamps

  • 0:00

    Introduction and Tech Setup

  • 1:05

    Starting 2018 FRQs Review

  • 1:35

    Topics for Spacecraft Orbit

  • 2:38

    Forces on Spacecraft

  • 5:51

    Deriving Orbital Period

  • 11:40

    Period with Double Mass

  • 14:17

    Speed in Larger Orbit

  • 17:36

    Exam Format Discussion

  • 20:12

    Starting Question 3: Spinning Disc

  • 22:48

    Graphing Angular Velocity

  • 25:26

    Angular Acceleration Graph

  • 26:59

    Deriving Rotational Inertia

  • 31:54

    Oil Dripping Experiment

  • 35:13

    Velocity Graph with Oil

  • 35:45

    Acceleration Graph with Oil

  • 39:55

    Modeling Equations Selection

  • 46:12

    Starting Question 5: Blocks and Spring

  • 47:46

    Topics for Spring Oscillation

  • 49:20

    Period Ratio Calculation

  • 51:57

    Amplitude After Collision

  • 58:43

    Mathematical Amplitude Derivation

  • 1:02:24

    Session Wrap-Up

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every AP exam is fiveable

Fiveable

Study Content & Tools

Study GuidesFRQs + AI ScoringAP Essay Grader for StudentsAI Grading for TeachersPractice QuestionsGlossaryScore Calculators

Company

What's New?PricingBulk DiscountsTestimonialsFAQsEmail us

Resources

AP Exam Schedule 2027AP Exam AccommodationsAP ClassesAP ClassroomEasiest AP ClassesHardest AP ClassesAP vs IBAP vs Dual EnrollmentAP vs Honors ClassesAP Scholar Awards

history

🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

career kickstart

💼 ap business with personal finance🔒 ap cybersecurity

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
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© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.