8A Masterclass (Dr. Na Ji) – Cogverse Academy

Cogverse Academy

Category

Physics Masterclass

Author

Cogverse Academy

Language

English

Current Status

Not Enrolled

Price

$60/week

Get Started

Check Enrollment Date

Check Enrollment Date

Current Status

Not Enrolled

Price

$60/week

Get Started

Check Enrollment Date

Welcome to the Physics 8A Masterclass for Professor Ji.

The goal of this Masterclass is to help you be as prepared as possible to ace Physics 8A. I have tutored students in Physics 8A for over 15 years and am very familiar with the course and the instructors as well as with the parts that students often have trouble with.

As a Masterclass student, you will get access to the best content (lecture notes, practice problems, old exams) as well as the best resources to do well. Each Masterclass includes weekly summaries of important concepts, recommended problems, review sessions and graded practice exams before each midterm or final, and individual help along the way.

Please feel free to reach out if you have any questions, I look forward to help you with Physics 8A!

John

Course Content

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-- KINEMATICS --

Kinematics – Lecture 19 Topics Sample Lesson

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P01-010 – Measuring Time & Position

P01-020 – Particle Model

P01-030 – Position Vector

P01-040 – Displacement Vector

P01-050 – Average Velocity Vector

P01-060 – Average Acceleration Vector

P01-070 – Instantaneous Velocity

P01-080 – Instantaneous Acceleration

P01-090 – Relationship Between Velocity & Acceleration

P01-100 – Kinematic Equations with Constant Acceleration

P01-110 – Application: Free-Fall

P01-200 – Angular Position & Displacement

P01-210 – Average Angular Velocity

P01-220 – Average Angular Acceleration

P01-230 – Instantaneous Angular Velocity

P01-240 – Instantaneous Angular Acceleration

P01-250 – Relationship Between Angular Speed & Acceleration

P01-260 – Kinematic Equations for Circular Motion

P01-270 – Relating Angular and Linear Quantities

8A – Kinematics Summary

Kinematics – Problems 11 Topics Sample Lesson

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P01R2015 – Components & Dot Product

P01G2015 – Average Velocity

P01R2015 – Acceleration on an incline

P01R2015 – Vertical Free-fall

P01G2019 – Rocket Launch

P01G2019 – Cars Racing Alongside Each Other

P01R2021 – Physics Rocks

P01R2015 – Catching the Bus

P01R2015 – Highway Patrol

P01G2007 – Balls Colliding in Mid-air

P01G2008 – Passing a Car

-- PROJECTILE MOTION --

Projectile Motion – Lecture 7 Topics Sample Lesson

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P02-010 – Projectile Motion

P02-020 – Equations of Motion

P02-030 – Equation of the Path y = f(x)

P02-040 – Finding the Maximum Height

P02-050 – Property of the Path of the Projectile

P02-060 – Range of the Projectile

P02-070 – Launch Angle and Range Maximization

8A – Projectile Motion Summary

Projectile Motion – Problems 10 Topics Sample Lesson

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P02R2015 – Analysis of a Jump

P02R2015 – Hoop Spacing

P02G2018 – Air Drop

P02R2015 – A Ball Game

P02G2017 – Ball Toss

P02R2015 – Clearing the Edge of a Cliff

P02G2005 – Home Run

P02G2016 – Ball Thrown in the Air

P02G2020 – Football Toss

P02G2021 – Projectile Launched from Unknown Height

-- DYNAMICS --

Newton’s Laws – Lecture 13 Topics

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P03-010 – Force and Vector Representation

P03-020 – Common Forces: weight force

P03-030 – Common Forces: tension force

P03-040 – Common Forces: normal force

P03-050 – Common Forces: friction forces

P03-060 – Common Forces: spring force & Hooke’s Law

P03-070 – Free-Body Diagram

P03-080 – Net Force

P03-090 – Newton’s First Law

P03-100 – Newton’s Second Law

P03-110 – Newton’s Third Law

P03-120 – Application: ideal string

P03-130 – Application: ideal pulley

8A – Newton’s Laws Summary

Newton’s Laws – Problems 20 Topics

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P03G2018 – Blocks Slipping on an Incline

P03R2015 – Hanging Mass

P03R2015 – Keeping a Box at Rest

P03G2007 – Holding a Block on an Incline

P03G2008 – Holding a Block Up Against a Wall

P03G2016 – Pressing a Block Against a Wall

P03R2015 – Resting or Sliding Up an Incline

P03R2015 – Acceleration and Friction Forces

P03G2005 – Holding Up a Block

P03G2015 – Pushing on Three Blocks

P03B2006 – Who is Pulling Who?

P03G2016 – Joint Inclines

P03G2017 – Pulling Three Blocks

P03G2018 – Pulling and Lifting

P03G2020 – Connected Blocks

P03R2015 – Atwood Machine

P03R2015 – Acceleration Constraint

P03R2015 – Pulling Two Connected Boxes

P03G2021 – Minimum Slipping Force

P03G2022 – Pulling Blocks on an Incline

-- CIRCULAR MOTION --

Circular Motion – Lecture 14 Topics

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P04-010 – Circular Motion

P04-020 – RTZ Coordinate System

P04-030 – Direction of Acceleration

P04-040 – Components of Acceleration

P04-050 – Derivation of the Components of Acceleration

P04-060 – Uniform & Non-Uniform Circular Motion

P04-070 – Period of Revolution

P04-080 – Newton’s Second Law

P04-090 – Angular Position & Displacement

P04-100 – Instantaneous Angular Velocity

P04-110 – Instantaneous Angular Acceleration

P04-120 – Relationship Between Velocity and Acceleration

P04-130 – Kinematic Equations for Circular Motion

P04-140 – Relating Angular & Linear Quantities

8A – Circular Motion Summary

Circular Motion – Problems 10 Topics

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P04G2016 – Lift Force on a Plane

P04B2006 – Space Ride

P04G2017 – Toy Car

P04G2018 – Holding a Block against a Wall

P04S2016 – Sliding Around a Funnel

P04S2016 – Pendulum on Planet Vulcan

P04G2019 – Semicircular Hill and Valley

P04G2005 – Flying in a Loop

P04R2015 – Around the Loop

P04G2022 – Pendulum

-- WORK & ENERGY --

Work & Energy – Lecture 14 Topics

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P05-010 – Energy

P05-020 – Kinetic Energy

P05-030 – Gravitational Potential Energy

P05-040 – Elastic Potential Energy

P05-050 – Mechanical Energy

P05-060 – Work Done by a Force

P05-070 – Calculating the Work Done by a Force

P05-080 – Conservative Force

P05-100 – Work Done by the Weight Force

P05-110 – Work Done by the Spring Force

P05-120 – Work-Kinetic Energy Theorem

P05-130 – Derivation of the Work-Kinetic Energy Theorem

P05-140 – Conservation of Mechanical Energy

P05-150 – Power and Mechanical Power

8A – Work & Energy Summary

Work & Energy – Problems 14 Topics

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P05G2007 – Package Landing on a Spring

P05S2016 – Sliding Over a Hill

P05L2022 – From One Spring to Another

P05G2019 – Block on a Vertical Spring

P05G2020 – Frictionless Ramp

P05G2016 – Mass-Spring System

P05R2015 – Rough Sliding

P05G2017 – Shooting a Crate

P05G2018 – Back and Forth Between Springs

P05R2021 – Launching a Block Up a Rough Incline

P05G2016 – Non-Conservative Force

P05G2018 – Projectile Launched from a Ramp

P05G2019 – Pushing a Block on the Ceiling

P05G2021 – Friction Under a Spring

-- MIDTERM 1 - STUDY GUIDE --

Bordel – 8A 2016 Spring – Midterm 1 – L1 4 Topics

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P01B2016 – Jetliner Landing

P02B2016 – Rescue Operation

P04B2016 – Banked Curve vs. Flat Curve

P05B2016 – Swinging on a Vine

Bordel – 8A 2017 Spring – Midterm 1 – L1 4 Topics

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P01B2017 – Airport Connection

P04B2017 – Ball Launched from a Tube

P03B2017 – Alpinists in Danger

P05B2017 – Up the Incline

Bordel – 8A 2017 Spring – Midterm 1 – L2 4 Topics

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P01B2017 – Dropped and Tossed Balls

P02B2017 – Golf Course

P04B2017 – Interconnected Masses

P05B2017 – Loop the Loop

Bordel – 8A 2018 Spring – Midterm 1 – L1 4 Topics

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P01B2018 – Tiger on a Linear Hunting Path

P02B2018 – The Impressive Spit of the Archerfish

P03B2018 – Baby Bouncer

P04B2018 – Car Rounding a Curve

Bordel – 8A 2018 Fall – Midterm 1 – L2 4 Topics

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P01B2018 – The Tortoise & the Hare

P02B2018 – Stranded on a Desert Island

P03B2018 – Pushing a Crate

P04B2018 – Interconnected Blocks

Bordel – 8A 2019 Fall – Midterm 1 – L2 4 Topics

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P01B2019 – Stop-and-Go Traffic

P02B2019 – Water Balloon Game

P03B2019 – Water Skiing

P04B2019 – A Fairground Ride

Bordel – 8A 2020 Spring – Midterm 1 – L1 4 Topics

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P01B2020 – Miniature Rocket Launch

P02B2020 – Medieval Attack Reenactment

P03B2020 – Sliding Blocks

P04B2020 – A Fun Ride

Bordel – 8A 2020 Fall – Midterm 1 – L2 4 Topics

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P01B2020 – Trains Approaching

P02B2020 – Ball Thrower

P03B2020 – Blocks and Pulley

P04B2020 – Tether Ball

Bordel – 8A 2021 Spring – Midterm 1 – L2 4 Topics

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P01B2021 – Brake Failure

P02B2021 – Ring Toss

P05B2021 – Ski Patrol

P04B2021 – Racing Outside of a Cone

Bordel – 8A 2023 Spring – Midterm 1 – L1 4 Topics

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P02B2023 – Jump of a Grasshopper

P05B2023 – Ski Lift

P04B2023 – Cube on a Rotating Disk

P05B2023 – Boat Launch Ramp

Bordel – 8A 2024 Spring – Midterm 1 – L1 4 Topics

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P02R2024 – Ball Landing on an Incline

P05B2024 – Ski Patrol

P04B2024 – Interconnected Blocks

P05B2024 – Up the Incline

8A Masterclass – Practice Midterm 1 (graded)

8A Masterclass – Midterm 1 Review Session

-- GRAVITATION --

Gravitation – Lecture 16 Topics

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P07-010 – Gravitational Field

P07-020 – Gravitational Force

P07-030 – The Weight Force

P07-040 – The Principle of Superposition

P07-050 – Circular Orbits: uniform circular motion

P07-060 – Circular Orbits: orbital speed

P07-070 – Circular Orbits: period of revolution

P07-080 – Gravitational Potential Energy

P07-090 – Gravitational Potential Energy for a System of Masses

P07-100 – Gravitational Potential Energy and Work

P07-110 – Conservation of Mechanical Energy

P07-120 – Nature of Orbits and Mechanical Energy

P07-130 – Escape Velocity

P07-150 – Kepler’s 1st Law: law of orbits

P07-160 – Kepler’s Second Law: law of areas

P07-170 – Kepler’s Third Law: law of periods for circular orbits

8A – Gravitation Summary

Gravitation – Problems 8 Topics

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P07R2015 – Accelerations Due to Gravity

P07S2015 – Mass Density of the Earth & the Moon

P07R2015 – Orbiting Satellite

P07R2015 – Geostationary Satellite

P07S2013 – Three Orbiting Bodies

P07S2013 – Orbiting the Center of Mass

P07R2015 – Satellite Orbiting Earth

P07R2015 – Of Kepler’s Laws

-- IMPULSE & MOMENTUM --

Impulse & Moment. – Lecture 10 Topics

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P06-010 – Momentum Vector

P06-020 – Newton’s Second Law in Momentum Form

P06-030 – Conservation of Momentum

P06-040 – Impulse of a Force

P06-050 – How to Calculate an Impulse

P06-060 – Impulse-Momentum Theorem

P06-070 – Inelastic & Elastic Collisions

P06-080 – Solving Strategy: perfectly inelastic collision

P06-090 – Solving Strategy: head-on elastic collision

P06-100 – Solving Strategy: off-center elastic collision

8A – Impulse & Momentum Summary

Impulse & Moment. – Problems 16 Topics

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P06G2005 – Game of Catch

P06L2018 – Plate Pieces

P06R2015 – Explosion of a Hockey Puck

P06R2015 – Ballistic Pendulum

P06G2019 – Blocks & Compressed Spring

P06B2006 – Saving Lois?

P06G2007 – Three Colliding Blocks

P06G2017 – Sequence of Collisions

P06R2019 – Two Collisions in a Row

P06G2016 – Collision Between Three Masses

P06G2018 – Masses Bouncing Off Each Other

P06G2020 – Speed Before and After a Collision

P06R2020 – Inelastic Collision vs. Elastic Collision

P06D2009 – Fun with a Slingshot

P06S2016 – Sliding Down and Back Up

P06G2015 – Inelastic Collision

-- CENTER OF MASS --

Center of Mass – Lecture 6 Topics

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P08-010 – Center of Mass of a System of Particles

P08-020 – Position of the Center of Mass

P08-030 – Velocity of the Center of Mass

P08-040 – Acceleration of the Center of Mass

P08-050 – Newton’s Second Law and Center of Mass

P08-060 – Center of Mass of a Rigid Body

Center of Mass – Problems 9 Topics

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P08G2019 – Stacked Blocks

P08R2015 – Walking to the End of the Canoe

P08D2014 – Elephant on a Train Car

P08R2015 – Collision and COM of Two Blocks

P08R2015 – Two Sliding Masses

P08R2015 – Two Sliding Masses at it Again

P08R2015 – COM of Three Boxes

P08R2015 – Exploding Firework

P08S2015 – Jumping the Plank

-- TORQUE - STATICS --

Statics – Lecture 5 Topics

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P09-010 – Equilibrium of an Extended Body

P09-020 – Introduction: three simple cases

P09-030 – Reminder: cross product of two vectors

P09-040 – Torque Created by a Force

P09-050 – Equilibrium Condition for an Extended Body

Statics – Problems 14 Topics

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P09R2020 – Balanced Beam

P09R2020 – Balanced Beam with Hanging Mass

P09B2021 – Drawbridge

P09R2015 – Resting Ladder

P09R2015 – Ladder and Painter

P09S2016 – Balanced Sphere

P09R2015 – Straw Balanced Across a Glass

P09G2019 – Non-Uniform Hanging Bar

P09B2011 – Marble Quarry Crane

P09G2007 – Rod in Equilibrium

P09G2016 – Balancing a Horizontal Rod

P09G2017 – Two Balanced Rods

P09G2020 – Beam with Two Sections

P09G2018 – Balanced Pole

-- TORQUE - DYNAMICS --

Dynamics – Lecture 7 Topics

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P10-010 – Solid Rotation

P10-020 – Angular Velocity Vector

P10-030 – Angular Acceleration Vector

P10-040 – Moment of Inertia

P10-050 – List of Moments of Inertia

P10-090 – Parallel-Axis Theorem

P10-100 – Newton’s Second Law for Rotational Motion

Dynamics – Problems 11 Topics

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P10S2015 – Helicopter Blade

P10G2005 – Rotating a Disk and a Rod

P10G2016 – Rotating Cylinder

P10D2013 – Pushing a Dresser

P10G2018 – Pushing a Door and a Box

P10R2015 – Kinematics of a Hollow Sphere

P10R2015 – Atwood Machine

P10G2019 – Blocks & Non-ideal Pulley

P10G2007 – Pulley Lowering a Block

P10L2018 – Moment of Inertia of a Pulley

P10G2015 – Acceleration of a Pulley

-- TORQUE - ENERGY & MOMENTUM --

Energy & Moment. – Lecture 11 Topics

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P11-010 – Angular Momentum

P11-020 – Newton’s Second Law in Angular Momentum Form

P11-030 – Conservation of Angular Momentum

P11-040 – Impulse-Momentum Theorem of Angular Momentum

P11-050 – Rolling Motion

P11-060 – Rolling w/o Slipping and Static Friction

P11-070 – Rotational Kinetic Energy

P11-080 – Rolling Kinetic Energy

P11-090 – Work Done by a Torque

P11-100 – Work-Kinetic Energy Theorem

P11-110 – Conservation of Energy for Rolling w/o Slipping

Energy & Moment. – Problems 14 Topics

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P11G2019 – Biking Down a Hill

P11G2007 – Kinetic Energy of a Spool

P11G2008 – Rotating Rod

P11G2016 – Unraveling a String Wound on a Sphere

P11G2017 – Velocity of a Rolling Disk

P11R2015 – Atwood Machine

P11G2018 – Two-Disk Pulley

P11R2015 – Down the Incline

P11G2015 – Around the Loop

P11G2005 – Pulley with Friction

P11R2015 – Vertical Swinging Rod

P10S2016 – Rolling on a Circular Track

P11G2015 – Disk Rolling then Sliding

P11G2015 – Collision with a Swinging Stick

-- MIDTERM 2 - STUDY GUIDE --

Bordel – 8A 2012 Spring – Midterm 2 – L2 4 Topics

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P07B2012 – Orbiting Spaceship

P06B2012 – Cars Colliding

P11B2012 – Rolling up an Incline

P09B2012 – Car Rescue

Bordel – 8A 2016 Spring – Midterm 2 – L2 4 Topics

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P07B2016 – Space Maneuvers

P05B2016 – Roller Coaster

P06B2016 – Fireworks

P11B2016 – Potter Wheel

Bordel – 8A 2017 Spring – Midterm 2 – L1 4 Topics

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P07B2017 – Blast Off

P05B2017 – Sliding Block

P06B2017 – Ballistic Pendulum

P11B2017 – Throwing Mud

Bordel – 8A 2017 Spring – Midterm 2 – L2 4 Topics

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P07B2017 – Satellite and Asteroid

P05B2017 – Ball Launcher

P06B2017 – Fun at the Arcade

P11B2017 – Spinning Wheel

Bordel – 8A 2018 Spring – Midterm 2 – L1 3 Topics

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P06B2018 – Colliding Particles

Block Lowered by a Pulley

P11B2018 – A Playful Mouse

Bordel – 8A 2018 Fall – Midterm 2 – L2 4 Topics

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P05B2018 – Puck on an Incline

P06B2018 – Collision with a Pendulum

P10B2018 – Dropping Anchor

P11B2018 – Ball Race

Bordel – 8A 2019 Fall – Midterm 2 – L2 4 Topics

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P07B2019 – Mars & Jupiter

P05B2019 – Santa Claus Contest

P06B2019 – Lodging a Bead in a Block

P10B2019 – Dropping the Bucket into the Well

Bordel – 8A 2020 Fall – Midterm 2 – L1 4 Topics

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P07B2020 – A Satellite Around the Earth

P05B2020 – When a Pendulum Meets a Peg

P10B2020 – Pulling a Load

P06B2020 – Battle of Mudballs

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