## What do you learn?

### One-dimensional motion

27 LessonsTitle

Study Time

Introduction to physics

9:29

Intro to vectors & scalars

8:39

Introduction to frames of reference

6:54

Calculating average velocity or speed

11:46

Solving for time

9:35

Displacement from time and velocity example

5:0

Instantaneous speed and velocity

4:38

Position vs. time graphs

15:20

Acceleration

9:6

Airbus A380 take-off time

8:8

Airbus A380 take-off distance

5:30

Why distance is area under velocity-time line

9:26

Acceleration vs. time graphs

14:38

Average velocity for constant acceleration

14:10

Acceleration of aircraft carrier take-off

14:16

Deriving displacement as a function of time, acceleration, and initial velocity

9:58

Plotting projectile displacement, acceleration, and velocity

16:18

Projectile height given time

8:51

Deriving max projectile displacement given time

7:9

Impact velocity from given height

11:43

Viewing g as the value of Earth's gravitational field near the surface

7:31

Choosing kinematic equations

10:58

Projectile motion (part 1)

9:9

Projectile motion (part 2)

9:15

Projectile motion (part 3)

9:4

Projectile motion (part 4)

8:58

Projectile motion (part 5)

9:33

### Two-dimensional motion

15 LessonsTitle

Study Time

Horizontally launched projectile

12:27

Visualizing vectors in 2 dimensions

12:54

Projectile at an angle

12:47

Launching and landing on different elevations

15:12

Total final velocity for projectile

7:53

Correction to total final velocity for projectile

2:41

Projectile on an incline

18:17

Unit vectors and engineering notation

7:58

Unit vector notation

9:54

Unit vector notation (part 2)

9:13

Projectile motion with ordered set notation

10:18

Optimal angle for a projectile part 1: Components of initial velocity

5:50

Optimal angle for a projectile part 2: Hangtime

4:12

Optimal angle for a projectile part 3: Horizontal distance as a function of angle (and speed)

2:39

Optimal angle for a projectile part 4: Finding the optimal angle and distance with a bit of calculus

10:41

### Centripetal force and gravitation

20 LessonsTitle

Study Time

Race cars with constant speed around curve

4:49

Centripetal force and acceleration intuition

10:47

Visual understanding of centripetal acceleration formula

9:48

Optimal turns at Indianapolis Motor Speedway with JR Hildebrand

6:25

Calculus proof of centripetal acceleration formula

14:22

Loop de loop question

3:1

Loop de loop answer part 1

6:5

Loop de loop answer part 2

4:48

Centripetal force problem solving

15:0

Yo-yo in vertical circle example

10:31

Bowling ball in vertical loop

8:49

Mass swinging in a horizontal circle

12:39

Introduction to gravity

15:43

Mass and weight clarification

10:41

Gravity for astronauts in orbit

7:12

Would a brick or feather fall faster?

10:35

Acceleration due to gravity at the space station

10:13

Space station speed in orbit

6:36

Introduction to Newton's law of gravitation

8:38

Gravitation (part 2)

8:17

### Work and energy

19 LessonsTitle

Study Time

Introduction to work and energy

9:18

Work and energy (part 2)

9:52

Conservation of energy

10:6

Work and the work-energy principle

5:48

Work as the transfer of energy

3:17

Work example problems

4:50

Work as area under curve

12:31

Thermal energy from friction

14:47

Work/energy problem with friction

10:5

Conservative forces

4:2

Power

5:46

Intro to springs and Hooke's law

10:6

Potential energy stored in a spring

10:0

Spring potential energy example (mistake in math)

9:39

LOL diagrams

15:0

Vertical springs and energy conservation

14:27

Introduction to mechanical advantage

10:2

Mechanical advantage (part 2)

6:50

Mechanical advantage (part 3)

10:35

### Linear momentum

13 LessonsTitle

Study Time

Introduction to momentum

9:18

Impulse and momentum dodgeball example

10:33

Bouncing fruit collision example

9:13

Momentum: Ice skater throws a ball

6:0

2-dimensional momentum problem

10:36

2-dimensional momentum problem (part 2)

9:33

Force vs. time graphs

8:14

Elastic and inelastic collisions

14:25

Solving elastic collision problems the hard way

15:46

Deriving the shortcut to solve elastic collision problems

12:22

How to use the shortcut for solving elastic collisions

10:20

Center of mass

9:36

Center of mass equation

5:40

### Torque and angular momentum

17 LessonsTitle

Study Time

Angular motion variables

12:51

Relating angular and regular motion variables

14:36

Relationship between angular velocity and speed

9:24

Rotational kinematic formulas

14:51

Introduction to torque

9:25

Moments

14:14

Moments (part 2)

13:50

Finding torque for angled forces

11:54

Rotational version of Newton's second law

13:56

More on moment of inertia

14:59

Rotational kinetic energy

14:3

Rolling without slipping problems

15:0

Angular momentum

11:18

Constant angular momentum when no net torque

5:55

Angular momentum of an extended object

9:40

Ball hits rod angular momentum example

14:54

Cross product and torque

10:1

### Oscillations and mechanical waves

33 LessonsTitle

Study Time

Intuition about simple harmonic oscillators

14:50

Definition of Amplitude and Period

10:0

Equation for simple harmonic oscillators

14:14

Period dependence for mass on spring

8:10

Phase constant

9:12

Pendulums

14:46

Introduction to harmonic motion

10:3

Harmonic motion part 2 (calculus)

9:46

Harmonic motion part 3 (no calculus)

9:44

Introduction to waves

13:3

Amplitude, period, frequency and wavelength of periodic waves

14:26

The equation of a wave

14:43

Production of sound

3:46

Sound Properties (Amplitude, Period, Frequency, Wavelength)

5:16

Speed of Sound

3:45

Relative speed of sound in solids, liquids, and gases

3:19

Mach numbers

4:4

Decibel Scale

10:30

Why do sounds get softer?

8:48

Ultrasound medical imaging

5:35

Introduction to the doppler effect

10:37

Doppler effect formula for observed frequency

10:13

Doppler effect formula when source is moving away

9:18

When the source and the wave move at the same velocity

7:35

Doppler effect for a moving observer

5:16

Doppler effect: reflection off a moving object

7:49

Wave interference

7:24

Constructive and Destructive interference

13:44

Standing waves on strings

13:25

Standing waves in open tubes

14:19

Standing waves in closed tubes

9:57

Beat frequency

11:48

Derivation of beat frequency formula

9:55

### Specific Gravity

17 LessonsTitle

Study Time

Specific gravity

3:10

Pressure and Pascal's principle (part 1)

9:47

Pressure and Pascal's principle (part 2)

10:13

Pressure at a depth in a fluid

9:54

Finding height of fluid in a barometer

10:9

Archimedes principle and buoyant force

8:42

Buoyant force example problems

9:41

Volume flow rate and equation of continuity

9:59

Bernoulli's equation (part 1)

10:8

Bernoulli's equation (part 2)

10:9

Bernoulli's equation (part 3)

8:36

Bernoulli's equation (part 4)

5:20

Bernoulli's example problem

7:46

Viscosity and Poiseuille flow

11:6

Turbulence at high velocities and Reynold's number

2:10

Venturi effect and Pitot tubes

9:58

Surface Tension and Adhesion

6:38

## About this course

Physics 101 is a course aimed at teaching you everything you need to know about physics in a very complete, intuitive and easy way. This course is one of several focused on position understanding. This course covers topics to build a basic intuitive understanding of the physical concept of position. Videos and resources include lectures, demonstrations, and many solved problems using the High School Physics Curriculum, AP Physics 1 Curriculum, and College Physics. This is great for students who plan to take, or have already taken, any of the following: High school physics, AP exams, college-level physics, or college introductory physics students.

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## Forces and Newton's laws of motion

33 Lessons