Paul Andersen explains how ecosystems function. He begins with a description of how life on the planet is ordered from large to small in biomes, ecosystems, communities, population, and individuals. He describes the major terrestrial and aquatic biomes on the planet.
This USGS video uses Raleigh, NC as an example of the effects of urbanization on stream ecosystems.
The resource, "Effects of Urbanization on Stream Ecosystems" included in "Lesson 1 Intro to Stormwater Management" is a part of "Unit 08 Storm Water Management Capstone" included in Energy & Sustainability ES - Course 2.
Definition of efficiency for a heat engine. Efficiency of a Carnot Engine.
Students use a watt meter to measure energy input into a hot plate or hot pot used to heat water. The theoretical amount of energy required to raise the water by the measure temperature change is calculated and compared to the electrical energy input to calculate efficiency.
Hear about Einsteinium from a scientist who looks like the man himself! This video is one of the 118 clips included in the periodic table of elements themed collection created by Brady Haran and the University of Nottingham in the UK.
Einstein's Messengers is an award-winning, 20-minute documentary on LIGO, NSF's Laser Interferometer Gravitational Wave Observatory. The video examines how LIGO is spearheading the new field of gravitational wave astronomy and opening a whole new window on the universe. It explains how LIGO's exquisitely sensitive instruments may ultimately take us farther back in time than we've ever been, catching, perhaps, the first murmurs of the universe in formation. Above all, Einstein's Messengers is a compelling, thought-provoking production about the drama of the scientific quest.
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 examples and demonstrations are included.
Paul Andersen explains how electric charge is quantized and how the smallest unit of charge is 1.6x10^-19 C, or the elementary charge. Robert Millikan discovered the elementary charge using the oil drop experiment. Electrons have a negative elementary charge and protons have a positive elementary charge.
The video resource "Electric Charge: Crash Course Physics #25" is included in the "Sociology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
Paul Andersen explains how electric circuits contain different elements which can be connected in series or in parallel. The following four elements are explained in detail; emf, resistor, capacitor, and switch. The voltage and current of resistors in both series and parallel are explained.
The video resource "Electric Current: Crash Course Physics #28" is included in the "Media Literacy" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
Paul Andersen explains how the electric field strength is directly related to the amount of charge that generates the field.
Paul Andersen explains how the electric field between oppositely and equally charged plates is uniform as long as you are far from the edge. The strength of the electric field can be determined by either the charge of the plate and the area or the voltage and separation.
Paul Andersen explains how vector addition can be used to determine the electric field of a dipole.
Paul Andersen explains how the electric field strength decreases as the square of the radius as you move away from a point charge, or a uniform distribution of charge on a sphere. This is a direct application of Coulomb's Law.
The video resource "Electric Fields: Crash Course Physics #26" is included in the "Sociology" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.
Paul Andersen explains how electric force on an object inside a field can be calculated by multiplying the charge of the object (in C) times the electric field strength (in N/C).
Paul Andersen explains how electric permittivity of a material resists the formation of electric fields. Capacitors store energy be preventing the formation of electric fields in dielectric material. The electric permittivity of free space is constant and increases in insulators.
Introduction to electric potential
Mr. Andersen introduces the topic of electricity. He differentiates between static electricity and current electricity. An introduction to electric circuits is also included.