Projects Tagged with "physique"
15 pendulum_test
By: dapontes
Views: 1814 | LoveIts: 157
Description: I saw the video http://www.youtube.com/watch?v=yVkdfJ9PkRQ and decided to make a simulation.
From (x,t) to (v,t) to motion
By: dapontes
Views: 1131 | LoveIts: 17
Description: Drag the 5 "points" to change the graph (position x, time t). Press the button "Start" to simulate the motion according to the graph. Press the Green flag to start.
Physics_Gears
By: dapontes
Views: 1071 | LoveIts: 21
Description: A remix of nevit's project about gears. Change the speed (v1) of the first gear (left). Choose the gear (buttons 1, 2 and 3). Learn more about gears: http://en.wikipedia.org/wiki/Gear
Mars- Retrograde motion
By: dapontes
Views: 616 | LoveIts: 28
Description: Watch Mars' apparent motion across the Earth's sky as the Earth passes in their orbits around the Sun. The retrograde otbits are caused by the overtaking Mars as they orbit the Sun. Thanks forest for the music "Act of Love". Learn more about the retrograde motion in http://en.wikip ... show more
Physics+Scratch=Fun! (Demo)
By: dapontes
Views: 395 | LoveIts: 29
Description: A MICROWORLD WITHOUT FRICTION! I used only the law of conservation of energy for the small cart: Kinetic Energy+potential Energy=constant INSTRUCTIONS 1.Press spacebar to change background 2.Press the 0 key to start the motion from this position (with velocity v=0)
Newton's Thought Experiment
By: dapontes
Views: 386 | LoveIts: 11
Description: INSTRUCTIONS a) Green flag to start b) Click on square A (or B) to put there the spacecraft (initial position) c) Choose the values of initial velocity (by sliders v0x and voy) d) Press the button to start the motion e) If you like click on stage to put the spacecraft on that position. Pre ... show more
Six mirrors_game
By: dapontes
Views: 298 | LoveIts: 16
Description: I saw the chalkmarrow's project and i decided to make another one easy game. We have one laser source, six mirrors and one target. 1.Click and drag the white dot to change the mirror's position. 2.Click and drag the red dot to change the mirror's diraction 3.Choose the position of the las ... show more
Water waves
By: dapontes
Views: 291 | LoveIts: 14
Description: Water waves are an example of waves that involve a combination of both longitudinal and transverse motions. As a wave travels through the waver, the particles travel in clockwise circles. The radius of the circles decreases as the depth into the water increases. http://paws.kettering.edu/~drussell/D ... show more
simple_pendulum_experiment
By: dapontes
Views: 284 | LoveIts: 11
Description: Simple pendulum experiment. INSTRUCTIONS 1.Green flag to start 2.Chooge initial angle θο 3.Choose the value of length L 4.Click on the play button 5.When the mass bob completes a full swing click on clock 6.Repeat steps 3 up to 5 in order to take mesurements for differnt lengt ... show more
Rutherford_experiment_02
By: dapontes
Views: 282 | LoveIts: 10
Description: Remix of my project....This time I use nine sprites instead of one. A simple model of the Rutherford scattering experiment. Ernest Rutherford was the first to use the idea that matter could be investigated by firing particles at it.
The physics of Camera Obscura
By: dapontes
Views: 277 | LoveIts: 8
Description: I used simple geometry to calculate the magnitude of the real image inside the camera obscura. For an introduction look at the goch's project "CameraObscura". Thanks to goch for the idea. Thanks to greenflash, who made the music "The Entertainer" by Scott Joplin.
Inclined plane_Galilei
By: dapontes
Views: 271 | LoveIts: 7
Description: A virtual Lab to compare speed and time at A and B.
Minifig Reflection
By: dapontes
Views: 258 | LoveIts: 5
Description: A minifig in front of a rotated mirror. Press the button GO to start the rotation and the button PAUSE to stop. Thanks DarthPickley for the minfig sprites and the TheSaint for the music. It works better in presentation mode.
Mechanical Egg Curve Construction
By: dapontes
Views: 257 | LoveIts: 7
Description: I use a mechanism (Slider-Crank) to draw an egg! Click on the button info to read about the idea for this drawing. Thanks gosh for the music (Fooled Love).
Independent_motions
By: dapontes
Views: 251 | LoveIts: 8
Description: Thanks abee for the monkey's image and the idea. INSTRUCTIONS 1.Click green flag 2.Place girl and monkey 3.Choose the initial velocity v0 and the gravity g 4.Click on start button * Click on monkey to stamp it. The problem is a version of "The Monkey and the Hunter" ( ... show more
Simple Harmonic Motion on a frictionless surface
By: dapontes
Views: 239 | LoveIts: 12
Description: A block of mass (m) attached to a spring of spring constant (k) is free to move on a frictionless horizontal surface. INSTRUCTIONS 1.Choose the spring constant (k) and the mass of block (m). 2.Choose the initial position of the block (click and drag) 3.Click on the block to start the motion ... show more
Slider_Crank Mechanism
By: dapontes
Views: 235 | LoveIts: 8
Description: I saw the chalkmarrow's project and i decided to make another one mechanism but in different way. Use the sliders R and a to change the length of the crank and the angular velocity respectively. If you like change the position of the mechanism use the arrows keys (up, down, right, left). Gre ... show more
Center of mass_Game
By: dapontes
Views: 230 | LoveIts: 7
Description: The task: Which is the overhang (maximum horizontal distance between the higher brick and the lower brick ) than one can reach in theory without the pile crumbling? Click and drag to change the horizontal position of a brick. Look at http://web.ics.purdue.edu/~mjcarlso/ST/videos.html
Four Cylinder Engine
By: dapontes
Views: 230 | LoveIts: 12
Description: A remix of ngmr's project. Look at my project http://scratch.mit.edu/projects/dapontes/2198212
4-stroke petrol engine (Otto)
By: dapontes
Views: 227 | LoveIts: 16
Description: A simulation of the 4-stroke petrol engine. For an animation look at the project http://scratch.mit.edu/projects/dapontesgr/2198148
Ptolemaic Geocentric Model
By: dapontes
Views: 212 | LoveIts: 11
Description: A remix of my project about the Geocentric planetary system of Ptolemy (a simplification, thanks Paddle2See). Learn more about this in wikipedia http://en.wikipedia.org/wiki/Deferent_and_epicycle Click on the green flag to start.
concave mirrors
By: dapontes
Views: 211 | LoveIts: 9
Description: Ray diagrams for mirrors. Click and drag the object to see the image (real and virtual). Look at wikipedia: http://en.wikipedia.org/wiki/Curved_mirror
Hooke's Law experiment
By: dapontes
Views: 211 | LoveIts: 1
Description: This law (F=-kx) was discovered in 1676 by the British scientist Robert Hooke. Change the spring constant and mass by sliders.
Charging a Single Sphere by Induction Using a Negatively-Charged Object
By: dapontes
Views: 210 | LoveIts: 7
Description: Green flag to start... Look at two others projects "charging by contact" http://scratch.mit.edu/projects/dapontesgr/1741892 and http://scratch.mit.edu/projects/dapontesgr/1741886
Brachistochrone_Experiment
By: dapontes
Views: 203 | LoveIts: 10
Description: A Brachistochrone curve (Gr. βραχίστος, brachistos - the shortest, χρόνος, chronos - time), or curve of fastest descent, is the curve between two points that is covered in the least time by a body that starts at the first point with zero speed and is constrained to move along the curv ... show more
Conservation of Energy
By: dapontes
Views: 192 | LoveIts: 4
Description: A block of mass (m) attached to a spring of spring constant (k) is free to move on a frictionless horizontal surface. INSTRUCTIONS 1.Choose the spring constant (k) and the mass of block (m). 2.Choose the initial position of the block (click and drag) 3.Click on the block to start the motion ( ... show more
Refractions
By: dapontes
Views: 175 | LoveIts: 8
Description: A project based on the Law of Refraction (Snell's Law). Green flag to start. Thanks forest for the background and TheSaint for the music.
Elastic Potential Energy
By: dapontes
Views: 174 | LoveIts: 4
Description: A simple demo to verify that the mechanical energy of the system (block+spring) remains constant. Thanks mathjp for the music of Nino Rota (project Scratch2_Attractor). Thanks Paddle2See for the help...
The minimum distance
By: dapontes
Views: 160 | LoveIts: 7
Description: Change the speed of the cat (or duck) and see the change of the minimum distance (duck-cat) in the graph (d.t).
15 pendulum_test (remix)
By: dapontesgr
Views: 156 | LoveIts: 7
Description: Ο καλός συνάδελφος Γιώργος Παναγιωτακόπουλος, σε σχόλιο του στο "Κοινωνικό Δίκτυο Διδάσκοντας Φυσικές Επιστήμες", μου ζήτησε να χρησιμοποιηθεί μια μεταβλητή ... show more
standing_wave
By: dapontes
Views: 150 | LoveIts: 4
Description: A virtual Lab to experiment with standings waves. Try wavelength λ=920, 460, 306, 230...
reflection_dance (Remix)
By: dapontes
Views: 140 | LoveIts: 11
Description: Reflections again! Thanks mathjp for the music (Project System1)
Center of mass or Barycenter
By: dapontes
Views: 123 | LoveIts: 5
Description: We have four objects (with masses m1, m2, m3, m4). The program calculates the position of center of mass G. Click and drag to change the positions of m1, m2, m3, and m4. Choose the values of mass..
Atomic Structure
By: dapontesgr
Views: 119 | LoveIts: 5
Description: Τοποθέτησε το δείκτη του ποντικιού πάνω από τα στοιχεία του περιοδικού συστήματος για να πάρεις την "ατομική δομή" τους.
Physics_Gears (Remix)
By: dapontesgr
Views: 111 | LoveIts: 3
Description: Το απλούστερο σύστημα μελέτης των οδοντωτών τροχών περιλαμβάνει δύο γρανάζια που το ένα συναρμόζει με ένα άλλο και περιστρέφονται με αντίθετες φορές. Το πρώτο γρα ... show more
Atomic Spectra
By: dapontesgr
Views: 109 | LoveIts: 5
Description: Τοποθέτησε το δείκτη του ποντικιού πάνω από τα στοιχεία του περιοδικού συστήματος για να πάρεις το "ατομικό φάσμα" του.
Collision elastique 2 balles
By: boisvert
Views: 108 | LoveIts: 3
Description: Les deux balles rebondissent comme des boules de billard (ou des molecules de gaz). Les calculs pour la collision elastique sont vraiment compliques cette fois - je ne les explique pas completement ici, si vous voulez le detail, essayez l'article "collision elastique" de wikipedia. Je pu ... show more
Siphon (Sifão)
By: ffred
Views: 107 | LoveIts: 7
Description: Escolhe o idioma e assiste, clicando quando o Sapo te pedir. Choose the language and watch. Click when the Frog ask you for. 25NOV2010
Drawing_magnetic_lines
By: dapontesgr
Views: 105 | LoveIts: 1
Description: Διαθέτουμε ένα ραβδόμορφο μαγνήτη (πηγή) και εννέα μαγνητικές βελόνες (υποθέματα - ανιχνευτές του μαγνητικού πεδίου). Σκοπός του project είναι η εικονογράφηση του μαγν ... show more
Waves on a string
By: dapontes
Views: 105 | LoveIts: 6
Description: A remix of DarthPickley version of Paddle2See project "Good Vibrations". Here you can change the angular frequency and the amplitude of the simple harmonic motion of the first particle. Also, you can create pulses on the string by clicking and dragging the hand or another particle. Ch ... show more
Isochrone Problem
By: dapontes
Views: 103 | LoveIts: 5
Description: "If from the highest or lowest point in a vertical circle there be drawn any inclined planes meeting the circumference, the times of descent along these chords are each equal to the other" Galileo Galilei in his 1638 masterpiece, Dialogues Concerning Two New Sciences (Proposition VI)
charging by contact
By: dapontesgr
Views: 84 | LoveIts: 1
Description: Green flag to start... Διαθέτουμε δύο ίδιες μεταλλικές σφαίρες στερεωμένες σε βάσεις από μονωτικό υλικό. Η μια, ηλεκτρικά ουδέτερη, παραμένει ακίνητη στο αριστερό μέρεος τ ... show more
From Graph (x,t) to Simulation (Remix)
By: dapontesgr
Views: 72 | LoveIts: 1
Description: Με σκοπό την επινόηση δραστηριοτήτων του τύπου "Πολλαπλών Αναπαραστάσεων" βελτίωσα το project που έφτιαξα πριν από πολύ καιρό (στο λογαριασμό dapontes). Drag the 8 "points& ... show more
wave on a string
By: dapontesgr
Views: 70 | LoveIts: 1
Description: Double click on green flag to start. Στην οθόνη διαθέτουμε ένα σύστημα (σχοινί) που αποτελείται από μια σειρά μικρών σφαιρών (φανταζόμαστε ότι συνδέονται μεταξύ τους με ελατήρια). Τ ... show more
Reflection Symmetry
By: dapontes
Views: 69 | LoveIts: 8
Description: Reflection symmetry for 4 objects. It works only in JAVA player. 1.Green flag to start 2.Click and drag the objects (ghost, girl, boy)
reflection_mirror_2
By: dapontesgr
Views: 67 | LoveIts: 0
Description: Μια δεύτερη εφαρμογή της ανάκλασης. Με κλικ και σύρσιμο μπορείς: α) Να αλλάζεις τη θέση της μέλισσας β) Να τοποθετείς το κορίτσι σε όποιο σημείο της οθόνης επιθυμ ... show more
Relative Motion (II)- Circular motion
By: dapontesgr
Views: 67 | LoveIts: 1
Description: Μια σφαίρα εκτελεί ομαλή κυκλική κίνηση (με γωνιακή ταχύτητα ω και ακτίνα R). Ο παρατηρητής - γάτα κινείται με σταθερή ταχύτητα υ=ωR. Αυτό που αντιλαμβάνεται η γάτα εί ... show more
Boyle_anim
By: dapontesgr
Views: 66 | LoveIts: 1
Description: To project βασίζεται στο animation που βρήκα στο διαδίκτυο http://www.grc.nasa.gov/WWW/K-12/airplane/aboyle.html Ο Άγγλος επιστήμονας Robert Boyle, στα μέσα του 1600, μελέτησε τη σχέση μεταξύ της πίεσης P ... show more
Projectile Motion- Virtual Lab
By: dapontesgr
Views: 65 | LoveIts: 2
Description: Πρόκειται για remix ενός προγράμματος που έφτιαξα παλιότερα (dapontes) με σκοπό να επινοήσω δραστηριότητες για τη διδασκαλία της Φυσικής. Οδηγίες (instructions): 1. Επιλέγουμ ... show more
cycloid_new
By: dapontesgr
Views: 63 | LoveIts: 1
Description: Πειραματίζομαι με την κυκλοειδή καμπύλη. Πρόκειται για remix του προγράμματος cycloide (dapontes). ΟΔΗΓΙΕΣ 1.Με τους μεταβολείς ν και ω επιλέγω τη μεταφορική ταχύτητα και ... show more
wave_Longitudinal_new
By: dapontesgr
Views: 58 | LoveIts: 0
Description: Double click on green flag to start. Ένα εικονικό εργαστήριο διαμηκών κυμάτων (Remix του προγράμματος "Εγκαρσίων κυμάτων").
charging by induction_1
By: dapontesgr
Views: 53 | LoveIts: 2
Description: Green flag to start... Look at another project (dapontes) http://scratch.mit.edu/projects/dapontes/1741829
Relative Motion (III)- Simple Harmonic Motion
By: dapontesgr
Views: 50 | LoveIts: 0
Description: Μια σφαίρα εκτελεί Απλή Αρμονική Ταλάντωση (με γωνιακή ταχύτητα ω και πλάτος Α). Ο παρατηρητής - γάτα κινείται με σταθερή ταχύτητα υ_cat. Αυτό που αντιλαμβάνεται η γάτ ... show more
Relative Motion (V)- Free Fall
By: dapontesgr
Views: 49 | LoveIts: 0
Description: Μια σφαίρα πέφτει κατακόρυφα προς τα κάτω (ελεύθερη πτώση). Ο παρατηρητής - γάτα κινείται με σταθερή ταχύτητα υ_cat. Αυτό που αντιλαμβάνεται η γάτα είναι μια οριζόντια ... show more
Free_fall_bounce
By: dapontesgr
Views: 47 | LoveIts: 1
Description: Πρόκειται για προσομοίωση της ελεύθερης πτώσης και της αναπήδησης της (ελαστικά) στο έδαφος. Με κλικ και σύρσιμο μεταφέρω τη μπάλα σε όποιο σημείο της οθόνης επιθυ ... show more
Free_fall_Newton_Feynman
By: dapontesgr
Views: 39 | LoveIts: 2
Description: USE Flash player. Ένα ακόμα project Προσομoίωσης και Στροβοσκοπικής αναπαράστασης της ελεύθερης πτώσης (χωρίς τριβές) με εφαρμογή της τεχνικής Newton-Feynman. Επιλέγουμε την επιτάχ ... show more
Free_fall_Simulation_Strobo
By: dapontesgr
Views: 29 | LoveIts: 1
Description: Ένα project Προσομoίωσης και στροβοσκοπικής αναπαράστασης της ελεύθερης πτώσης (χωρίς τριβές) Επιλέγουμε την επιτάχυνση της βαρύτητας και το βήμα - χρόνου dt, Με κλικ κ ... show more
U=RI
By: thiebma
Views: 27 | LoveIts: 3
Description: Comment tranformer la loi d'ohm pour un résistor
Right_angle_mirror (Remix)
By: dapontesgr
Views: 26 | LoveIts: 0
Description: Στη λευκή περιοχή μπροστά από τους δύο καθρέφτες μπορείς να σχεδιάσεις "μονοκονδυλιά" το σχήμα που επιθυμείς. ΟΔΗΓΙΕΣ 1.Πράσινο σημαιάκι για ξεκίνημα 2.Με κλι ... show more
