An introduction to physics in the context of everyday objects.
How Things Work: An Introduction to Physics
ofrecido por
Universidad de Virginia
129,282 inscrito
Programa - Qué aprenderás en este curso
Semana
11 hora para completar
Course Introduction
Start here!
1 video (Total 5 minutos), 2 readings, 1 quiz
1 video
2 lecturas
Suggested Readings10m
Translations10m
1 ejercicio de práctica
Preliminary Assessment42m
Semana
21 hora para completar
Skating
Professor Bloomfield examines the principle of inertia through skate boarding. Objects at rest tend to remain at rest while objects in motion, tend to remain in motion. Why does a stationary skater remain stationary? Why does a moving skater tend to continue moving? How can we describe the fluid, effortless motion of a coasting skater? How does a skater start, stop, or turn? Why does a skater need ice or wheels in order to skate? Physics concepts covered include Newton's first and second laws and 5 physical quantities: position, velocity, acceleration, force, and mass.
7 videos (Total 49 minutos), 1 quiz
7 videos
Why Does a Motionless Skater Tend to Remain Motionless?9m
Why Does a Moving Skater Tend to Continue Moving?4m
How Can We Describe the Fluid, Effortless Motion of a Coasting Skater?8m
How Does a Skater Start, Stop, or Turn?16m
Why Does a Skater Need Ice or Wheels in Order to Skate?4m
Skating Summary1m
1 ejercicio de práctica
Skating20m
Semana
32 horas para completar
Falling Balls
Professor Bloomfield examines the physics concepts of gravity, weight, constant acceleration, and projectile motion working with falling balls.
8 videos (Total 111 minutos), 1 quiz
8 videos
Why Does a Dropped Ball Fall Downward?4m
How Differently do Different Balls Fall?14m
How Would a Ball Fall on the Moon?9m
How Does a Falling Ball Move After it is Dropped?24m
How Can a Ball Move Upward and Still be Falling?21m
How Does a Ball's Horizontal Motion Affect its Fall?25m
Falling Balls Summary3m
1 ejercicio de práctica
Falling Balls20m
Semana
42 horas para completar
Ramps
Professor Bloomfield examines the physics concepts of Newton's third law including conserved quantities, support forces, work, energy, and mechanical advantage working with ramps.
7 videos (Total 85 minutos), 1 quiz
7 videos
Why Doesn't a Wagon Fall Through a Sidewalk?11m
Why Does a Sidewalk Perfectly Support a Wagon?7m
How Does a Wagon Move as You Let it Roll Freely on a Ramp?12m
Why is it More Exhausting to Lift a Wagon Up Than to Lower a Wagon Down?29m
Why is it Easier to Pull a Wagon Up a Ramp Than to Lift it Up a Ladder?14m
Ramps Summary3m
1 ejercicio de práctica
Ramps20m
Semana
52 horas para completar
Seesaws
Professor Bloomfield illustrates the physics concepts of rotational versus translational motion, Newton's law of rotation, and 5 physical quantities: angular position, angular velocity, angular acceleration, torque, and rotational mass using seesaws.
8 videos (Total 119 minutos), 1 quiz
8 videos
How Does a Balanced Seesaw Move?17m
Why Does a Seesaw Need a Pivot?13m
Why Does a Lone Seesaw Rider Plummet to the Ground?23m
Why do the Riders' Weights and Positions Affect the Seesaw's Motion?19m
Why Do the Riders' Distances from the Pivot Affect the Seesaw's Responsiveness?17m
How Do the Seesaw's Riders Affect One Another?19m
Seesaws Summary3m
1 ejercicio de práctica
Seesaws20m
Semana
62 horas para completar
Wheels
Professor Bloomfield illustrates the physics concept of frictional forces through experiments with wheels.
8 videos (Total 111 minutos), 1 quiz
8 videos
Why Does a Wagon Need Wheels?9m
Why is Sliding a Box Across the Floor Usually Hardest at the Start?20m
How is Energy Wasted as a Box Skids to a Stop?18m
How Do Wheels Help a Wagon Coast?19m
How do Powered Wheels Propel a Bicycle or Car Forward?17m
How is Energy Present in a Wheel?18m
Wheels Summary2m
1 ejercicio de práctica
Wheels20m
Semana
72 horas para completar
Bumper Cars
Professor Bloomfield examines the physics concepts of momentum, impulse, angular momentum, angular impulse, and the relationship between potential energy and force using bumper cars.
7 videos (Total 99 minutos), 1 quiz
7 videos
Does a Moving Bumper Car Carry a Force?18m
How is Momentum Transferred From One Bumper Car to Another?23m
Does a Spinning Bumper Car Carry a Torque?17m
How is Angular Momentum Transferred From One Bumper Car to Another?15m
How Does a Bumper Car Move on an Uneven Floor?15m
Bumper Cars Summary3m
1 ejercicio de práctica
Bumper Cars20m
Semana
81 hora para completar
Final
This is the final exam.
1 video (Total 2 minutos), 1 quiz
1 ejercicio de práctica
Final Assessment42m
40%
comenzó una nueva carrera después de completar estos cursos
36%
consiguió un beneficio tangible en su carrera profesional gracias a este curso
22%
consiguió un aumento de sueldo o ascenso
Principales revisiones
The course was simple and easy to follow! I enjoyed Professor Bloomfield's teaching very much! I definitely would recommend it for anyone who is curious about the basic principles of science!
Great introduction to Physics. I use the concepts taught in this course frequently in everyday life. Professor Bloomfield explains concepts very clearly without getting overly mathematical.
Instructor
Louis A. Bloomfield
Professor of PhysicsAcerca de Universidad de Virginia
A premier institution of higher education, The University of Virginia offers outstanding academics, world-class faculty, and an inspiring, supportive environment. Founded by Thomas Jefferson in 1819, the University is guided by his vision of discovery, innovation, and development of the full potential of students from all walks of life. Through these courses, global learners have an opportunity to study with renowned scholars and thought leaders.
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