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The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. This nucleus accounts for most (if not all) of the weight in an atom but only a small fraction of its volume. This nucleus is made up of protons and neutrons densely smushed together, and surroudning this dense mass is a space which electrons float and orbit in. The nucleus is particularly critical in identifying elements, which are identified by the number of protons in the nucleus. | The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. This nucleus accounts for most (if not all) of the weight in an atom but only a small fraction of its volume. This nucleus is made up of protons and neutrons densely smushed together, and surroudning this dense mass is a space which electrons float and orbit in. The nucleus is particularly critical in identifying elements, which are identified by the number of protons in the nucleus. | ||
==Model== | |||
Model | |||
please follow this link to see a picture and diagrams of an atom and the nucleus within it. | please follow this link to see a picture and diagrams of an atom and the nucleus within it. | ||
Revision as of 21:17, 27 November 2016
Georgia Tech Student Wiki for Introductory Physics.
This resource was created so that students can contribute and curate content to help those with limited or no access to a textbook. When reading this website, please correct any errors you may come across. If you read something that isn't clear, please consider revising it for future students!
Looking to make a contribution?
- Pick one of the topics from intro physics listed below
- Add content to that topic or improve the quality of what is already there.
- Need to make a new topic? Edit this page and add it to the list under the appropriate category. Then copy and paste the default Template into your new page and start editing.
Please remember that this is not a textbook and you are not limited to expressing your ideas with only text and equations. Whenever possible embed: pictures, videos, diagrams, simulations, computational models (e.g. Glowscript), and whatever content you think makes learning physics easier for other students.
Source Material
All of the content added to this resource must be in the public domain or similar free resource. If you are unsure about a source, contact the original author for permission. That said, there is a surprisingly large amount of introductory physics content scattered across the web. Here is an incomplete list of intro physics resources (please update as needed).
- A physics resource written by experts for an expert audience Physics Portal
- A wiki written for students by a physics expert MSU Physics Wiki
- A wiki book on modern physics Modern Physics Wiki
- The MIT open courseware for intro physics MITOCW Wiki
- An online concept map of intro physics HyperPhysics
- Interactive physics simulations PhET
- OpenStax algebra based intro physics textbook College Physics
- The Open Source Physics project is a collection of online physics resources OSP
- A resource guide compiled by the AAPT for educators ComPADRE
Resources
- Commonly used wiki commands Wiki Cheatsheet
- A guide to representing equations in math mode Wiki Math Mode
- A page to keep track of all the physics Constants
- A page for review of Vectors and vector operations
- A listing of Notable Scientist with links to their individual pages
Physics 1
Week 1
Help with VPython
Interactions
Velocity and Momentum
Week 2
Momentum and the Momentum Principle
Iterative Prediction with a Constant Force
Week 3
Analytic Prediction with a Constant Force
Iterative Prediction with a Varying Force
Week 4
Fundamental Interactions
Week 5
Conservation of Momentum
Properties of Matter
Week 6
Identifying Forces
Week 7
Energy Principle
Week 8
Work by Non-Constant Forces
Potential Energy
Week 9
Multiparticle Systems
Week 10
Choice of System
Thermal Energy, Dissipation and Transfer of Energy
Rotational and Vibrational Energy
Week 11
Different Models of a System
Models of Friction
Week 12
Collisions
Week 13
Rotations
Angular Momentum
- Total Angular Momentum
- Translational Angular Momentum
- Rotational Angular Momentum
- The Angular Momentum Principle
- Angular Momentum Compared to Linear Momentum
- Angular Impulse
- Predicting the Position of a Rotating System
- Angular Momentum of Multiparticle Systems
- The Moments of Inertia
- Moment of Inertia for a cylinder
- Right Hand Rule
Week 14
Analyzing Motion with and without Torque
Week 15
Introduction to Quantum Concepts
Physics 2
Week 1
3D Vectors
Electric field
Electric force
Superposition
Dipoles
Week 2
Interactions of charged objects
Tape experiments
Polarization
Week 3
Insulators
Conductors
Charging and discharging
Week 4
Field of a charged rod
Field of a charged ring/disk/capacitor
Field of a charged sphere
Week 5
Potential energy
Electric potential
Sign of a potential difference
Potential at a single location
Path independence and round trip potential
Week 6
Electric field and potential in an insulator
Moving charges in a magnetic field
Biot-Savart Law
Moving charges, electron current, and conventional current
Week 7
Magnetic field of a wire
Magnetic field of a current-carrying loop
Magnetic field of a Charged Disk
Magnetic dipoles
Atomic structure of magnets
Week 8
Steady state current
Node rule
- Node Rule
- In an electric circuit in series, electrons flow from the negative end of a power source, creating a constant current. This current remains consistent at each point in the circuit in series. Sometimes, a circuit is not simply one constant path and may include parts that are in parallel, where the current must travel down two paths such as this:
- File:Noderule.jpg
- In this case, when the current enters a portion of the circuit where the items are in parallel, the total amount of current in must equal the total amount of current out. Therefore, the currents in each branch of the parallel portion must sum up to the amount of current at any other point in series in the circuit.
- For the previous image, the node rules can be written as I_total = I_1 + I_2 and I_total = I_3 + I_4. It is also true that I_1 + I_2 = I_3 + I_4.
- However, each of these currents are different because each point has a different resistance. The current is different for each because it is equal to V/R, and in a parallel circuit, the voltage drop across each point is equal.
Electric fields and energy in circuits
Macroscopic analysis of circuits
Week 9
Electric field and potential in circuits with capacitors
Magnetic forces on charges and currents
Electric and magnetic forces
Velocity selector
Week 10
The Hall effect
Motional EMF
Magnetic force
Magnetic torque
Week 12
Gauss's Law
Ampere's Law
Week 13
Semiconductors
Faraday's Law
Maxwell's equations
Week 14
Circuits revisited
Week 15
Electromagnetic Radiation
Sparks in the air
Superconductors
Physics 3
Week 1
Classical Physics
Week 2
Special Relativity
Week 3
Photons
Week 4
Matter Waves
Week 5
Wave Mechanics
Week 6
Rutherford-Bohr Model
Week 7
The Hydrogen Atom
Week 8
Many-Electron Atoms
Week 9
Molecules
Week 10
Statistical Physics
Week 11
Condensed Matter Physics
Week 12
The Nucleus
The nucleus is the small, dense region consisting of protons and neutrons at the center of an atom. This nucleus accounts for most (if not all) of the weight in an atom but only a small fraction of its volume. This nucleus is made up of protons and neutrons densely smushed together, and surroudning this dense mass is a space which electrons float and orbit in. The nucleus is particularly critical in identifying elements, which are identified by the number of protons in the nucleus.
Model
please follow this link to see a picture and diagrams of an atom and the nucleus within it.
http://www.livescience.com/37206-atom-definition.html