October 2, 2013

animation of phy

COMPUTER ANIMATIONS OF PHYSICAL PROCESSES



 
» The Physics Classroom » Multimedia Physics Studio

Multimedia Physics Studio

1-Dimensional Kinematics

Newton's Laws

Vectors and Projectiles

Momentum and Collisions

Work and Energy

Circular, Satellite, and Rotational Motion

Einstein's Theory of Special Relativity

Static Electricity

Waves, Sound and Light

Ray Optics

QuickTime Movies

Vectors and Projectiles

Momentum and Collisions

Work and Energy

Return to List of Animations
 

Motion with Constant Acceleration

This Java applet shows a car moving with constant acceleration. The green control panel contains text fields where you can vary the values of initial position, initital velocity and acceleration (don't forget to press the "Enter" key!). By using the buttons at the top right you can bring back the car to its initial position or stop and resume the simulation. If you choose the option "Slow motion", the movement will be ten times slower.
Three digital clocks indicate the time elapsed since the start. As soon as the car has reached the green respectively red light barrier with its front bumper, the corresponding clock will stop. Both light barriers are adjustable by dragging the mouse with pressed mouse button.
Three diagrams illustrate the motion of the vehicle:
  • Position x versus time t
  • Velocity v versus time t
  • Acceleration a versus time t
 
 
Physics
Physics Applets
URL: http://www.walter-fendt.de/ph14e/acceleration.htm
© Walter Fendt, November 2, 2000
Last modification: Febr
Animations for Physics and Astronomy
These animations are available for use under a Creative Commons License.

by Dr. Michael R. Gallis
Penn State Schuylkill
mrg3@psu.edu 

Do not try to download the entire collection, it will lock up the server.

A compressed 1.2 GB snapshot of all project files can be downloaded via Physics Animation Project Snapshot .

Select a category from the menu at left to browse the catalogue of animations by category. Most animations are 512 by 384 pixel avi files and are generally several megabytes long. Small screenshots are provided, and the user may view the animation in three ways: direct link to the media file, and two versions of a link to a page with the animation embeded in a web page with a brief comment on the animation. There are two methods used to embed the animation because not all work equally well with any one method. You can right-click on the media file link to save an animation to your own computer.
Project Page
The animations project has its very own YouTube Channel. 
CWIS Portal to the Animations. The portal allows searching as well as browsing of animation topics. 
A blog has been created to discuss the creation of the animations. 
-=Papers and Presentations=-
Artificial Video for Video Analysis, MichaelR. Gallis to be submitted to The Physics Teacher: draft paper and zipped files: 1D activities files, 2D activities files, Millikan virtual lab files (large file), all activities files, (large file).
3-D Animations for Introductory Electromagnetism, MichaelR. Gallis presented at CPS-AAPT 2005 Spring Meeting   -Presentation
Elementary Animated Illustrations of Geodesics using POV-Ray , Michael R. Gallis (unpublished)
Animations for Introductory Courses, Dr. Michael R. Gallis and Dr. Ping Wang presented at the 2004 ASEE Annual Conference and Exposition:   -Presentation  -Paper
See also Visual Mathematics by Dr. Michael R. Gallis and Dr. Ping Wang
These works are licensed under a Creative Commons License. Creative Commons License
వీరిచే పోస్ట్ చెయ్యబడింది వద్ద No comments:

physics flash animations

Physics Flash Animations 
by Don Ion (ion@sbcc.edu)
Download Page   -   Flash movies can be downloaded and played in a browser or Flash Player
Oscilations and Waves:
Simple Harmonic Motion
Materials:

వీరిచే పోస్ట్ చెయ్యబడింది వద్ద No comments:

9th atoms@molecules notes


Saturday, October 20, 2012

9th Atoms and molecules Study Notes, Q & A

NCERT Solution, MCQs, Study Notes, Q & A
Q1: Name the international organization who approves names of elements.
Ans : IUPAC (International Union of Pure and Applied Chemistry)
Q2: How do we know the presence of atoms if they do not exist independently for most of the elements?
Answer: Atom join in different way to form matter(neutral molecules or ion) that we are able to touch, feel and see.
Q3: Give an example to show Law of conservation of mass applies to physical change also.
Ans: When ice melts into water, is a physical change. Take a piece of ice in small flask, cork it and weight it (say Wice gm). Heat the flask gently and ice (solid) slowly melts into water (liquid). Weigh the flask again (Wwater gm). It is found there is no change in the weight i.e. Wice= Wwater.
                               Heat(Δ)
                        Ice  ----------➜   Water
This shows law of conservation of mass holds true for physical changes.
Q4: Explain with example that law of conservation of mass is valid for chemical reactions.
Ans: According to this law, total mass of the products (chemicals produced) is equal to the total mass of the reactants (chemicals take part in reaction). e.g. Carbon combines with Sulphur to form Carbon disulphide. The mass of reactants i.e. carbon and sulphur is same mass of products (carbon disulphide).
                 Carbon + Sulphur -----➜   Carbon DiSulphide
                   C    +   S     -----➜     C2S  
                   1g   +  5.34g    =       6.34 g
                       LHS          =     RHS
Q5: Is there any exception to law of conservation of mass?
Ans: Later after atoms were discovered, it was found during nuclear reactions this law does not hold good. In a nuclear reaction, some of the mass gets converted into energy, as given by famous Einstein's mass-energy relationship (E = mC2). The law was rechristened as Law of conservation of mass and energy.
Q6.In a reaction, 5.3 g of sodium carbonate reacted with 6 g of ethanoic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium ethanoate. Show that these observations are in agreement with the law of conservation of mass.
       sodium carbonate + ethanoic acid  → sodium ethanoate + carbon dioxide + water
Ans:  Mass of  sodium carbonate (Na2CO3) = 5.3 g  Mass of ethanoic acid (CH3COOH) = 6g
Mass of carbon dioxide (CO2) = 2.2g  Mass of Water (H2O) = 0.9 g
Mass of sodium ethanoate (CH3COONa) = 8.2 g
Total mass of reactants = 5.3g + 6g = 11.3g
Total mass of products = 2.2g + 0.9 g + 8.2g = 11.3g
Since, Total mass of reactants = Total mass of products, the observations in this reaction are in agreement with the law of conservation of mass.
Q7 If 12 g of carbon is burnt in the presence of 32 g of oxygen, how much carbon dioxide will be formed? 
Ans: Given, the reaction is carbon + oxygen → carbon dioxide
Mass of carbon = 12g       Mass of oxygen = 32g
Mass of carbon dioxide (CO2) = xg
Since the reaction is in agreement with law of conservation of mass, then
                      Total mass of reactants = Total mass of products
i.e. 12g + 32g = x        i.e. x = 44g
∴ mass of carbon dioxide (CO2) formed = 44g
Q.8.  A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight.
Ans: Given, mass of boron = 0.096 g      mass of the oxygen = 0.144g
mass of the sample compound (boron+oxygen) = 0.24 g
According to Law of definite proportions, boron and oxygen are in fixed ratio in the given compound.= 0.096 : 0.0144  = 2:3
% of boron = mass of boron × 100 / mass of compound = 0.096 × 100/0.24 = 40%and % of oxygen = mass oxygen  × 100 / mass of compound = 0.144 × 100/0.24 = 60%
Q.9. When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen? Which law of chemical combination will govern your answer?
Answer: The given reaction is
                Carbon + Oxygen ➜ Carbon Dioxide
                  3g   +  8g    =   11g
⇒ Total mass of reactants = Total mass of products
∴ Law of conservation of mass is obeyed.
It also shows that carbon dioxide (CO2) contains carbon and oxygen in fixed ratio i.e. 3:8 which follows Law of Constant proportion.
⇒ 3g of carbon (C) will react with 8g of oxygen (O) to give 11g of carbon dioxide (CO2).
⇒ Remaining oxygen (50 -8 = 42g) will not participate in the reaction.
Q10 : Magnesium and oxygen combine in the ratio of 3 : 2 by mass to form magnesium oxide. How much oxygen is required to react completely with 12 g of magnesium?
Answer: Magnesium (Mg) and Oxygen (O) combine in the ratio = 3:2 to form compound magnesium oxide (MgO). It follows Law of Constant proportions.
⇒ 3g of Mg combines with = 2g of O.
∴ 12g of Mg combines with = 2 × 12/3 = 8g of O.

Q.11.Why are Dalton's symbol not used in chemistry?
Answer:Dalton was the first scientist to use the symbol for the name of the elements a specific sense but it was difficult to memorize and in uses so Dalton's symbol are not used in chemistry
Related post to IX(9th)  Atoms and Molecules

Posted by J Sunil at 6:46 PM
Labels:
  • Discovering psychology 4th edition
  • Discovering psychology 5th edition
  • New car loan rates
  • Best weight loss program
  • Weight loss plans

No comments:

Post a Comment


Related Posts Plugin for WordPress, Blogger...
  • Diet plans to lose weight fast
  • Sample Papers
  • Weight loss program
 
వీరిచే పోస్ట్ చెయ్యబడింది వద్ద No comments:
Subscribe to: Posts (Atom)