An introduction to physics in the context of everyday objects.
How Things Work: An Introduction to Physics
oferecido por
Universidade da Virgínia
129,118 Inscrito
Programa - O que você aprenderá com este curso
Semana
11 hora para concluir
Course Introduction
Start here!
1 vídeo (total de (Total 5 mín.) min), 2 leituras, 1 teste
1 vídeos
2 leituras
Suggested Readings10min
Translations10min
1 exercício prático
Preliminary Assessment42min
Semana
21 hora para concluir
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 vídeos (total de (Total 49 mín.) min), 1 teste
7 videos
Why Does a Motionless Skater Tend to Remain Motionless?9min
Why Does a Moving Skater Tend to Continue Moving?4min
How Can We Describe the Fluid, Effortless Motion of a Coasting Skater?8min
How Does a Skater Start, Stop, or Turn?16min
Why Does a Skater Need Ice or Wheels in Order to Skate?4min
Skating Summary1min
1 exercício prático
Skating20min
Semana
32 horas para concluir
Falling Balls
Professor Bloomfield examines the physics concepts of gravity, weight, constant acceleration, and projectile motion working with falling balls.
8 vídeos (total de (Total 111 mín.) min), 1 teste
8 videos
Why Does a Dropped Ball Fall Downward?4min
How Differently do Different Balls Fall?14min
How Would a Ball Fall on the Moon?9min
How Does a Falling Ball Move After it is Dropped?24min
How Can a Ball Move Upward and Still be Falling?21min
How Does a Ball's Horizontal Motion Affect its Fall?25min
Falling Balls Summary3min
1 exercício prático
Falling Balls20min
Semana
42 horas para concluir
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 vídeos (total de (Total 85 mín.) min), 1 teste
7 videos
Why Doesn't a Wagon Fall Through a Sidewalk?11min
Why Does a Sidewalk Perfectly Support a Wagon?7min
How Does a Wagon Move as You Let it Roll Freely on a Ramp?12min
Why is it More Exhausting to Lift a Wagon Up Than to Lower a Wagon Down?29min
Why is it Easier to Pull a Wagon Up a Ramp Than to Lift it Up a Ladder?14min
Ramps Summary3min
1 exercício prático
Ramps20min
Semana
52 horas para concluir
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 vídeos (total de (Total 119 mín.) min), 1 teste
8 videos
How Does a Balanced Seesaw Move?17min
Why Does a Seesaw Need a Pivot?13min
Why Does a Lone Seesaw Rider Plummet to the Ground?23min
Why do the Riders' Weights and Positions Affect the Seesaw's Motion?19min
Why Do the Riders' Distances from the Pivot Affect the Seesaw's Responsiveness?17min
How Do the Seesaw's Riders Affect One Another?19min
Seesaws Summary3min
1 exercício prático
Seesaws20min
Semana
62 horas para concluir
Wheels
Professor Bloomfield illustrates the physics concept of frictional forces through experiments with wheels.
8 vídeos (total de (Total 111 mín.) min), 1 teste
8 videos
Why Does a Wagon Need Wheels?9min
Why is Sliding a Box Across the Floor Usually Hardest at the Start?20min
How is Energy Wasted as a Box Skids to a Stop?18min
How Do Wheels Help a Wagon Coast?19min
How do Powered Wheels Propel a Bicycle or Car Forward?17min
How is Energy Present in a Wheel?18min
Wheels Summary2min
1 exercício prático
Wheels20min
Semana
72 horas para concluir
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 vídeos (total de (Total 99 mín.) min), 1 teste
7 videos
Does a Moving Bumper Car Carry a Force?18min
How is Momentum Transferred From One Bumper Car to Another?23min
Does a Spinning Bumper Car Carry a Torque?17min
How is Angular Momentum Transferred From One Bumper Car to Another?15min
How Does a Bumper Car Move on an Uneven Floor?15min
Bumper Cars Summary3min
1 exercício prático
Bumper Cars20min
Semana
81 hora para concluir
Final
This is the final exam.
1 vídeo (total de (Total 2 mín.) min), 1 teste
1 vídeos
1 exercício prático
Final Assessment42min
40%
comecei uma nova carreira após concluir estes cursos
36%
consegui um benefício significativo de carreira com este curso
22%
recebi um aumento ou promoção
Melhores avaliações
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.
Instrutores
Louis A. Bloomfield
Professor of PhysicsSobre Universidade da Virgínia
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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