Choose a Chapter from OpenStax College Physics for AP® Courses

Welcome to the internet's best resource to learn physics problem solving! Three years in the making, this enormous collection demonstrates best practices with clarity for any type of physics problem. Each video is concise, but without skipping steps, to help get you on your way as quickly as possible. I hope you will find the help you need. Best wishes with your studies!

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Infrared Andromeda Galaxy (M31).

Chapter 1

Measurement and the scientific method.

36 solutions

American kestrel.

Chapter 2

One-dimensional kinematics

73 solutions

The Dragon Khan in Spain's Universal Port Aventura Amusement Park.

Chapter 3

Two-Dimensional Kinematics

74 solutions

Newton’s laws of motion describe the motion of the dolphin’s path. This photo was taken at the Lisbon Zoo.

Chapter 4

Dynamics: Force and Newton's Laws of Motion

86 solutions

Total hip replacement surgery has become a common procedure. The head (or ball) of the patient's femur fits into a cup that has a hard plastic-like inner lining.

Chapter 5

Further applications of Newton's Laws: friction, drag, and elasticity

48 solutions

This Australian Grand Prix Formula 1 race car moves in a circular path as it makes the turn. Its wheels also spin rapidly—the latter completing many revolutions, the former only part of one (a circular arc). The same physical principles are involved in each.

Chapter 6

Gravitation and uniform circular motion

54 solutions

How many forms of energy can you identify in this photograph of a wind farm in Sandesneben, Germany?

Chapter 7

Work, Energy, and Energy Resources

108 solutions

Each rugby player has great momentum, which will affect the outcome of their collisions with each other and the ground.

Chapter 8

Linear Momentum and Collisions

113 solutions

On a short time scale, rocks like these in Australia's Kings Canyon are static, or motionless relative to the Earth.

Chapter 9

Statics and Torque

50 solutions

The mention of a tornado conjures up images of raw destructive power. Tornadoes blow houses away as if they were made of paper and have been known to pierce tree trunks with pieces of straw. They descend from clouds in funnel-like shapes that spin violently, particularly at the bottom where they are most narrow, producing winds as high as 500 km/h. Location: Oklahoma 7 miles south of Anadarko.

Chapter 10

Rotational Motion and Angular Momentum

77 solutions

The fluid essential to all life has a beauty of its own. It also helps support the weight of this swimmer.

Chapter 11

Fluid statics

90 solutions

Many fluids are flowing in this scene. Water from the hose and smoke from the fire are visible flows. Less visible are the flow of air and the flow of fluids on the ground and within the people fighting the fire. Explore all types of flow, such as visible, implied, turbulent, laminar, and so on, present in this scene.

Chapter 12

Fluid Dynamics and its Biological and Medical Applications.

74 solutions

The welder’s gloves and helmet protect him from the electric arc that transfers enough thermal energy to melt the rod, spray sparks, and burn the retina of an unprotected eye. The thermal energy can be felt on exposed skin a few meters away, and its light can be seen for kilometers.

Chapter 13

Temperature, Kinetic Theory, and the Gas Laws

80 solutions

(a) The chilling effect of a clear breezy night is produced by the wind and by radiative heat transfer to cold outer space. (b) There was once great controversy about the Earth’s age, but it is now generally accepted to be about 4.5 billion years old. Much of the debate is centered on the Earth’s molten interior. The discovery of radioactivity in rocks revealed the source of energy that keeps the Earth’s interior molten, despite heat transfer to the surface, and from there to cold outer space.

Chapter 14

Heat and Heat Transfer Methods

88 solutions

A steam engine uses heat transfer to do work. Tourists regularly ride this narrow-gauge steam engine train near the San Juan Skyway in Durango, Colorado, part of the National Scenic Byways Program.

Chapter 15

Thermodynamics

77 solutions

There are at least four types of waves in this picture—only the water waves are evident. There are also sound waves, light waves, and waves on the guitar strings.

Chapter 16

Oscillatory Motion and Waves

101 solutions

This tree fell some time ago. When it fell, atoms in the air were disturbed. Physicists would call this disturbance sound whether someone was around to hear it or not.

Chapter 17

Physics of Hearing

106 solutions

Static electricity from this plastic slide causes the child's hair to stand on end. The sliding motion stripped electrons away from the child's body, leaving an excess of positive charges, which repel each other along each strand of hair.

Chapter 18

Electric charge and electric field

106 solutions

Automated external defibrillator unit (AED)

Chapter 19

Electric Potential and Electric Field

112 solutions

Electric energy in massive quantities is transmitted from this hydroelectric facility, the Srisailam power station located along the Krishna River in India, by the movement of charge—that is, by electric current.

Chapter 20

Electric Current, Resistance, and Ohm's Law

109 solutions

Electric circuits in a computer allow large amounts of data to be quickly and accurately analyzed..

Chapter 21

Circuits, Bioelectricity, and DC Instruments

90 solutions

The magnificent spectacle of the Aurora Borealis, or northern lights, glows in the northern sky above Bear Lake near Eielson Air Force Base, Alaska. Shaped by the Earth’s magnetic field, this light is produced by radiation spewed from solar storms.

Chapter 22

Magnetism

105 solutions

This wind turbine in the Thames Estuary in the UK is an example of induction at work. Wind pushes the blades of the turbine, spinning a shaft attached to magnets. The magnets spin around a conductive coil, inducing an electric current in the coil, and eventually feeding the electrical grid.

Chapter 23

Electromagnetic Induction, AC Circuits, and Electrical Technologies

111 solutions

Human eyes detect these orange “sea goldie” fish swimming over a coral reef in the blue waters of the Gulf of Eilat (Red Sea) using visible light.

Chapter 24

Electromagnetic Waves

62 solutions

Image seen as a result of reflection of light on a plane smooth surface.

Chapter 25

Geometric Optics

82 solutions

A scientist examines minute details on the surface of a disk drive at a magnification of 100,000 times. The image was produced using an electron microscope.

Chapter 26

Vision and Optical Instruments

49 solutions

he colors reflected by this compact disc vary with angle and are not caused by pigments. Colors such as these are direct evidence of the wave character of light.

Chapter 27

Wave Optics

116 solutions

Special relativity explains why traveling to other star systems, such as these in the Orion Nebula, is unreasonable using our current level of technology.

Chapter 28

Special Relativity

76 solutions

A black fly imaged by an electron microscope is as monstrous as any science-fiction creature.

Chapter 29

Introduction to Quantum Physics

102 solutions

Individual carbon atoms are visible in this image of a carbon nanotube made by a scanning tunneling electron microscope.

Chapter 30

Atomic Physics

83 solutions

The synchrotron source produces electromagnetic radiation, as evident from the visible glow.

Chapter 31

Radioactivity and Nuclear Physics

93 solutions

Tori Randall, Ph.D., curator for the Department of Physical Anthropology at the San Diego Museum of Man, prepares a 550-year-old Peruvian child mummy for a CT scan at Naval Medical Center San Diego.

Chapter 32

Medical Application of Nuclear Physics

71 solutions

Part of the Large Hadron Collider at CERN, on the border of Switzerland and France. The LHC is a particle accelerator, designed to study fundamental particles.

Chapter 33

Particle Physics

68 solutions

This galaxy is ejecting huge jets of matter, powered by an immensely massive black hole at its center.

Chapter 34

Frontiers of Physics

29 solutions