Bozeman Science
Heat Exchange
In this video Paul Andersen explains how energy can be transferred from warmer objects to colder objects through heat. Temperature is a measure of the average kinetic energy of the particles in a substance. When two objects are in...
Crash Course
Liquids: Crash Course Chemistry
In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD!
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Crash Course
Torque: Crash Course Physics
What is torque? This is one of those things that you may have heard about in passing but never really understood. In this episode of Crash Course Physics, Shini sits down with us to discuss what torque is, how it works, why it works, and...
Crash Course
Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry
We have learned over the past few weeks that gases have real-life constraints on how they move here in the non-ideal world. As with most things in chemistry (and also in life) how a gas moves is more complex than it at first appears. In...
Bozeman Science
Energy Concepts
In this video Paul Andersen explains the different forms and units for energy. A discussion of the laws of thermodynamics is also included. Sample conversion problems using dimensional analysis is also included.
Crash Course
How Rivers Shape the Landscape: Crash Course Geography
Today we're going to talk about rivers and how these dynamic, delicate, yet powerful systems are able to constantly change the landscape. We'll focus on the Zambezi River in Southeast Africa following its main features from the...
TED-Ed
TED-Ed: How do nuclear power plants work? - M. V. Ramana and Sajan Saini
Our ability to mine great amounts of energy from uranium nuclei has led some to bill nuclear power as a plentiful, utopian source of electricity. But rather than dominate the global electricity market, nuclear power has declined from a...
Bozeman Science
Kinetic Theory and Temperature
In this video Paul Andersen explains how the macroscopic measure of temperature can be related to the average kinetic energy of molecules in motion. The Boltzmann constant and distribution can be used to calculate the root mean square...
Crash Course
Temperature: Crash Course Physics
Bridges. Bridges don't deal well with temperature changes. In order to combat this, engineers have come up with some work arounds that allow bridges to flex as they expand or contract. In this episode of Crash Course Physics, Shini talks...
Bozeman Science
Bernoulli's Equation
In the video Paul Andersen explains how Bernoulli's Equation describes the conservation of energy in a fluid. The equation describes the pressure energy, potential energy, and kinetic energy of a fluid at a single point. A sample problem...
Crash Course
The First & Zeroth Laws of Thermodynamics: Crash Course Engineering #9
In today’s episode we’ll explore thermodynamics and some of the ways it shows up in our daily lives. We’ll learn the zeroth law of thermodynamics, what it means to reach a thermal equilibrium, and define the first law of thermodynamics....
Crash Course
The Physics of Heat: Crash Course Physics
Have you ever wondered why we wear clothes? I mean, beyond the obvious. Why does wearing a jacket in the cold keep your warmer? What is happening to all the heat inside your body? In this episode of Crash Course Physics, Shini talks...
Crash Course
Fluid Flow & Equipment: Crash Course Engineering #13
Today we’ll dive further into fluid flow and how we can use equipment to apply our skills. We explain Bernoulli’s Principle and the relationship between speed and pressure in certain flowing fluids. We’ll also discuss how to apply the...
Crash Course
The Engineering Challenges of Renewable Energy: Crash Course Engineering #30
This week we are looking at renewable energy sources and why we need them. We’ll explore hydropower, wind, geothermal, and solar power, as well as some of the challenges, and how engineers are working to make their use more widespread.
Bozeman Science
Elastic and Inelastic Collisions
In this video Paul Andersen compares and contrasts elastic and inelastic collisions. In all collisions the linear momentum will be conserved. In an elastic collision the kinetic energy of the objects will also be maintained. Several...
Bozeman Science
Kinetic and Potential Energy
In this video Paul Andersen explains how the energy in a closed system can be converted from kinetic to potential to kinetic energy. Sample problems and a simulation is contained.
Bozeman Science
Work and Energy
In this video Paul Andersen explains how the mechanical energy added or removed from a system results from work. For work to occur a force must act parallel to the displacement of the system. Since work and energy are equivalent the...
Crash Course
Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry
Continuing our look at Nuclear Chemistry, Hank takes this episode to talk about Fusion and Fission. What they mean, how they work, their positives, negatives, and dangers. Plus, E=mc2, Mass Defect, and Applications of Fission and Fusion...
Bozeman Science
AP Biology Lab 9: Transpiration
Paul Andersen starts by defining transpiration as evaporation off of a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments.
Crash Course
Solutions: Crash Course Chemistry
This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar...
Crash Course
Fluids in Motion: Crash Course Physics
Today, we continue our exploration of fluids and fluid dynamics. How do fluids act when they're in motion? How does pressure in different places change water flow? And what is one of the motion annoying things about filming outside on a...
Crash Course
Kinetic Theory and Phase Changes: Crash Course Physics
How the heck do we map out a planet without oceans? NASA had to figure that out when we sent the Mariner 9 probe to Mars. There's some tricky, yet fascinating science behind all of it! In this episode of Crash Course Physics, Shini talks...
Bozeman Science
Heat
In this video Paul Andersen explains how heat is the movement of energy from an object with a higher temperature to an object with lower temperature. Heat transfer can occur through conduction, convection, and radiation.
Bozeman Science
Potential and Kinetic Energy
Mr. Andersen explains the difference between potential and kinetic gravitational energy. He also uses physics to calculate the energy in various objects.