Physics 7A (Lee)

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Physics 7A

Physics 7A - (Lee)

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January 2025

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This study guide is tailored to Physics 7A with Professor Lee and contains lecture notes, practice problems, and old exams with step-by-step solutions.

If you find yourself not knowing how to study or what to focus on when you leave discussion and feel like you could use some help with the class, then this study guide is a great resource. Not only will it teach you what you need to know to do well on exams, it will also save you massive amounts of time otherwise wasted on trying to find relevant problems with good solutions.

I have spent over 15 years helping students with Physics and I look forward to helping you do well in Physics 7A!

Kinematics

1. Lecture notes & videos

2. Practice Problems

  • Components & Dot Product
  • Graphical Subtraction of Vectors
  • Average Velocity
  • Kitty Kinematics
  • Trip to the Store
  • Acceleration on an Incline
  • Jetliner Landing
  • Vertical Free-Fall
  • Throwing a Rock from a Truck
  • Miniature Rocket Launch
  • Rocket Launch
  • Rising Rocket
  • Cars Racing Alongside Each Other
  • Physics Rocks
  • Trains Approaching
  • Catching the Bus
  • Coming at Each Other
  • Trains Crossing
  • Highway Patrol
  • Missiles Colliding
  • Balls Colliding in Mid-air
  • Passing a Car
  • Dropped and Tossed Balls
  • Airport Connection
  • Stop-and-Go Traffic
  • The Tortoise & the Hare
  • Furiously Fast
  • Dropping vs. Throwing
  • Tiger on a Linear Hunting Path
  • Biking Along
Projectile Motion

1. Lecture Notes & Videos

2. Practice Problems

  • Analysis of a Jump
  • Water Balloon Game
  • Ball Thrower
  • Medieval Attack Reenactment
  • Ring Toss
  • Jump of a Grasshopper
  • Air Delivery
  • Stranded on a Desert Island
  • Projectile Launched from Unknown Height
  • Hoop Spacing
  • Ball Landing on an Incline
  • Rescue Operation
  • The Impressive Spit of the Archerfish
  • A Ball Game
  • Throwing a Rock Off a Cliff
  • Ball Flying Past a Window
  • Ball Toss
  • Clearing the Edge of a Cliff
  • Golf Course
  • Home Run
  • Ball Thrown in the Air
  • Football Toss
  • Clearing the Wall
  • Throwing a Rock Over a Plateau
  • Tennis Ball Launcher and Mobile Target
  • Throwing Gum Out an Elevator
Newton's Laws

1. Lecture Notes & Videos

2. Practice Problems

  • Three Hanging Masses
  • Blocks Slipping on an Incline
  • Hanging Mass
  • Three Blocks at Rest
  • Two Blocks Compressing a Spring
  • Keeping a Box at Rest
  • Pushing a Crate
  • Sliding or Not?
  • Holding a Block Up Against a Wall
  • Pressing a Block Against a Wall
  • Resting or Sliding Up an Incline
  • Acceleration and Friction Forces
  • Max and Min Angle of an Incline
  • Corvette Flying Off a Cliff
  • Rough Interfaces
  • Holding Up a Block
  • Marble Falling in Glycerin
  • Small Block on Larger Moving Block
  • Pulling Stacked Blocks
  • Blocks Sliding Down a Ramp
  • Small Block Sliding on Another
  • Stacked Triangular Blocks
  • Sliding Up a Wedge at Rest
  • Who is Pulling Who?
  • Joint Inclines
  • Pulling Three Blocks
  • Pulling and Lifting
  • Connected Blocks
  • Minimum Slipping Force
  • Pulling and Lifting
  • Slanted Push
  • Minimum Slipping Force
  • Atwood Machine
  • Two Blocks on the Verge of Slipping
  • Lifting a Box with Pulleys
  • Climbing Up a Rope
  • Stacked Blocks and Pulley
  • Pulling Two Connected Boxes
Circular Motion

1. Lecture Notes & Videos

2. Practice Problems

  • Interconnected Blocks
  • A Fairground Ride
  • Tether Ball
  • Racing Outside of a Cone
  • Cube on a Rotating Disk
  • Space Ride
  • Toy Car
  • Whirling Chamber
  • Holding a Block Against a Wall
  • Connected Blocks and Circular Motion
  • Rotating Around a Rod
  • Twirling Pendulum
  • Car Driving Inside a Cone
  • Sliding Around a Funnel
  • RC Car in a Can
  • Pendulum on Planet Vulcan
  • Car Rounding a Curve
  • Banked Curve vs. Flat Curve
  • A Fun Ride
  • Banked Road
  • Racing Outside a Banked Curve
  • Ball Launched from a Tube
  • Semicircular Hill and Valley
  • Whirling a Stone
  • Flying in a Loop
  • Around the Loop
  • Skateboarding in the Hills
Work & Energy

1. Lecture Notes & Videos

2. Practice Problems

  • Ball Launcher
  • Loop-the-Loop then Friction
  • Ski Jump
  • Puck Launch
  • Blocks Connected Over a Pulley
  • Sliding Over a Hill
  • Santa Claus Contest
  • Block on a Vertical Spring
  • Frictionless Ramp
  • Sliding Mounds and Block
  • Up the Incline
  • Shooting a Crate
  • Back and Forth Between Springs
  • Springs and Friction
  • Launching a Block Up a Rough Incline
  • Sliding Down and Bouncing Back Up
  • Non-Conservative Force
  • Friction Under a Spring
  • Roller Coaster
  • Sliding Block
  • Loop-the-Loop
  • When a Pendulum Meets a Peg
  • Projectile Launched from a Ramp
  • Pushing a Block on the Ceiling
  • Risky Swinging
  • Stretching a Spring
  • Sliding Off a Ramp with Friction
  • Downhill Ski Race
  • Bobsled Challenge
  • Ski Patrol
  • Ski Lift
  • Tension Force with Changing Direction
  • Energy of Connected Masses
  • Spring, Pulley, and Masses
Impulse & Momentum

1. Lecture Notes & Videos

2. Practice Problems

  • Catching a Ball on a Boat
  • Game of Catch
  • Ball Bouncing Off a Wall
  • Hockey Puck Bouncing Off a Wall
  • Bullet Fired into a Block
  • Canoe Disagreement
  • Space Chase
  • Sliding and Colliding
  • Collision with a Pendulum
  • Exploding Rocket
  • Block Sliding Down a Curved Incline
  • Radioactive Decay
  • Ejecting a Block Off a Table
  • Saving Lois?
  • Three Colliding Blocks
  • Collision Course
  • Two Collisions in a Row
  • Launching Two Blocks with a Spring
  • Sliding Blocks Compressing a Spring
  • Projectile Game
  • Collision in Free-Fall
  • Lodging a Bead in a Block
  • Colliding Particles
  • Bumper Car Collision
  • Collision Between Three Masses
  • Masses Bouncing Off Each Other
  • Speed Before and After a Collision
  • Blocks Colliding
  • Explosion of a Hockey Puck
  • Inelastic Collision vs. Elastic Collision
  • Sinking the 9-Ball
  • Fun at the Arcade
  • Hockey Pucks
  • Elastic Collision Between Pucks
  • Fun with a Slingshot
  • Sliding Down and Back up
  • Burning Through Rocket Propellant
  • Rocket Sled
Gravitation

1. Lecture Notes & Videos

2. Practice Problems

  • Lunar Eclipse
  • Accelerations Due to Gravity
  • Mass Density of the Earth & the Moon
  • Space Maneuvers
  • Geostationary Satellite
  • Orbiting Satellite
  • Geostationary Satellite
  • Three Orbiting Bodies
  • Orbiting the Center of Mass
  • Orbiting Spaceship
  • Blast Off
  • Satellite and Asteroid
  • A Satellite Around the Earth
  • Putting a Satellite in Orbit
  • Changing Orbits
  • From One Planet to Another
  • Gravitational Potential Energy & Work
  • Satellite Orbiting Earth
  • Of Kepler’s Laws
Center of Mass

1. Lecture Notes & Videos

2. Practice Problems

  • Elephant on a Train Car
  • Walking to the End of the Canoe
  • Collision and COM of Two Blocks
  • Two Sliding Masses
  • Two Sliding Masses at it Again
  • COM of Three Boxes
  • Stacked Blocks
  • A Grenade Exploding in Midair
  • Exploding Firework
  • Jumping the Plank
  • COM of Rigid Bodies
Torque - Statics

1. Lecture Notes & Videos

2. Practice Problems

  • Balanced Beam
  • Resting Ladder
  • Ladder and Painter
  • Holding a Sign
  • Balanced Pole
  • A Ball Attached to an Incline
  • Disk Balanced on an Incline
  • Balanced Sphere
  • Straw Balanced Across a Glass
  • Disk Balanced Between Rods
  • Non-Uniform Hanging Bar
  • Non-Uniform Balancing Rod
  • Marble Quarry Crane
  • Car Rescue
  • Drawbridge
  • Rod in Equilibrium
  • Balancing a Horizontal Rod
  • Two Balanced Rods
  • Beam with Two Sections
  • Joined Sections
  • Suspended Beam
  • Balanced Beam with Hanging Mass
  • CO2 Sampling Technique
  • Yoga Pose
  • Balancing Force
Torque - Dynamics

1. Lecture Notes & Videos

2. Practice Problems

  • Helicopter Blade
  • Opposing Torques
  • Pushing a Door and a Box
  • Kinematics of a Hollow Sphere
  • Two Rockets on a Rod
  • Rolling on a Circular Track
  • Acceleration of a Yo-yo
  • Rolling and Slipping
  • Pulling a Spool of Thread
  • Pulling Strings Off a Disk
  • Spherical Spintop
  • Accelerating Joint Disks
  • Atwood Machine
  • A Non-Ideal Pulley
  • Block Lowered by a Pulley
  • Dropping a Bucket into a Well
  • Pulling a Load
  • Pulley Lowering a Block
  • Unknown Falling Mass
  • Cylinder Dragging a Box
  • Disk and Mass Contraption
  • Block Pulling a Rolling Disk
  • Measuring Rotational Inertia
  • Experimental Determination of  Rotational Inertia
  • Double Pulley
Torque - Energy & Momentum

1. Lecture Notes & Videos

2. Practice Problems

  • Track with a Bump
  • Large Ball Rolling Down a Track
  • Kinetic Energy of a Spool
  • Rotating Rod
  • Disk Rolling then Sliding
  • Unraveling a String Wound on a Sphere
  • Two-Disk Pulley
  • Disk Rolling Then Sliding
  • Down the Incline
  • Rolling UP and Off a Ramp
  • Rolling…or Not
  • Rolling Ball and Semicircular Track
  • Ball Race
  • Around the Loop
  • Incline Height
  • Rolling Without Slipping Around a Loop
  • Spring-Launched Objects
  • A Bar Suspended by a Rope
  • Swinging Bar
  • Swinging Physical Pendulum
  • Hoisting Device
  • Spring-Block in Circular Motion
  • Pulley with Friction
  • Rusty Barn Door
  • Rolling on a Sliding Plank
  • Unraveling a String
  • Potter Wheel
  • Kid’s Game
  • A Playful Mouse
  • A Walk on the Merry-go-round
  • Ball Colliding with a Rod
  • Fleas Jumping Off a Disk
  • Throwing Mud
  • Collision with a Swinging Stick
  • All Sorts of Momentum
  • Atwood Machine
  • Jumping on a Carousel
  • Ballistic Pendulum
  • Rotational Collision
  • Launching a Block on a Plate
  • Stopping a Rotating Rod
  • Point Masses Colliding with a Rod
  • Collision with a Spinning Rod
  • Hitting a Hanging Rod
  • Collision and Full Swing
Fluids

1. Lecture Notes & Videos

2. Practice Problems

  • Floating in Two Fluids
  • Ball Suspended in Water
  • Experiment with a U-Shaped Tube
  • Hydraulic Press
  • Floating Glass Beaker
  • Floating Cylinder
  • Anchored Barge
  • U-Shaped Tube with Oil and Water
  • The Hidden Part of the Iceberg
  • Suspended Floating Iron Cylinder
  • Piece of Iron with Cavities
  • Weighing Suspended Blocks in Water
  • Hot Air Balloon
  • Manometer Reading
  • Liquid in a Container
  • Fire Hydrant Flow
  • Measuring Fluid Speed
  • Hose Draining a Tank
  • Flow Through a Pipe
  • Flow Through a Horizontal Pipe
  • Flow Through a Pitot Tube
  • Narrow Pipe on a Tank
  • Large Hole in a Water Tank
  • Syringe of Water
  • Filling a Leaky Tank
  • Pitot Tube
  • Water Leaking Out of a Tank
  • Drinking Fountain
  • Leaky Cylindrical Tank
  • Toricelli’s Law
  • Force and Torque on a Dam
Oscillations

1. Lecture Notes & Videos

2. Practice Problems

  • Springs in Series and in Parallel
  • Oscillations and Rolling Without Slipping
  • Pivoting Rod Attached to a Spring
  • Bobbing Cylinder
  • Oscillating Rod
  • Oscillating While Rolling Without Slipping
  • Cylinder-Spring Oscillator
  • Mathematics of Oscillations
  • Oscillating Block
  • Horizontal Oscillator
  • Mass of an Oscillating Block
  • Motion of an Oscillator
  • Oscillating Block
  • Superposed Oscillating Blocks
  • Hitting a Pendulum
  • Choosing a Torsional Constant
  • Collision then Oscillations
  • Collision with a Rod
  • Oscillating Block
  • Acrobatic Show
  • Launched Block and Oscillations
  • Initial Conditions of a Pendulum
  • Mass Dropped on an Oscillator
  • Landing on a Spring
  • Energy of a Horizontal Oscillator
  • Energy of a Simple Pendulum
  • Elastic Collisions and Oscillations
Mechanical Waves

1. Lecture Notes & Videos

2. Practice Problems

  • Describing a Wave Mathematically
  • Guitar String
  • Standing Wave on a Wire
  • Standing Wave on a String
  • Vibrating Wire
  • Standing Wave Pattern
  • Displacement of a Vibrating String
  • Two Strings
  • Vibrating Hanging Wires
  • Hanging Rope
  • Another Vibrating Wire
  • Speaker and Microphone
  • Standing Waves in a Pipe
  • A Tuning Fork and a Tube
  • Interfering Soundwaves
  • Strings Attached
  • The Perfect Wave
  • Bat Flying Toward a Wall
  • Doppler Shifts
  • Extraterrestrial Doppler Shift
  • Doppler-Shifted Train Whistle
  • Oscillating Speaker
  • Foghorns on the Bay

Reviews

Saved so much time thanks to this study guide!

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Physics 7A

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Physics 7A

Having so many resources in one place was really beneficial. Thanks!

Emily G.

Physics 7A

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