https://mattcraig.org/sims daily 0.75 2026-05-09 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1570035029935-VBJ9TNUORQGP0HYQLCXZ/graphsImg.png 11/12 physics simulations - Graphs of Motion Generates and animates 5-section kinematic graphs (d-t, v-t, a-t) for uniform / non-uniform motion. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525961776052-A727DSUL0VSYU8E5WLH6/projectileImg.png 11/12 physics simulations - Projectile Motion Simulates projectiles fired at different speeds, angles and elevations, with or without air resistance. Includes a Monkey-Hunter mode and Rifle mode. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1527257252082-12JLIZJYXRUBQ6587801/vectorImg.png 11/12 physics simulations - Vector Addition Draw and connect two 2D vectors, and see the resultant. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1516813069636-B0GX4UQGIB157CNQDXWE/boatImg.png 11/12 physics simulations - Relative Velocity Simulates and draws vector-diagrams for a boat crossing a river with a current. The boat can be pointed directly across and pushed downstream, or aimed into the current to end up directly across. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1589474397719-94O3EFM0ZCH68A94BG7J/image-asset.png 11/12 physics simulations - Free Body Diagrams and Inclined Planes Draw and design your own free body diagrams or inclined plane problems. Calculates the acceleration combined objects on planes. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1557231791539-QO7YTIS6YARVX8BALX7H/forcesImg.png 11/12 physics simulations - Forces Lab Perform a force lab involving friction, an inclined plane and a pulley. Weights can be added to the cart or pulley. This simulation also generates a table of values, a position-time graph and a velocity-time graph. A line-of-best-fit can be drawn on the velocity-time graph to calculate the acceleration. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1576185900387-2UODWH9PG4Y8HZA5UWI2/energyImg.png 11/12 physics simulations - Energy Ball Explore conservation of energy (kinetic, gravitational and elastic), as well as energy lost to friction, by creating tracks of different shapes and rolling the smiley along them. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1527270957329-V9EDBK969X9HRT0BEVYG/hookesImg.png 11/12 physics simulations - Hooke's Law Lab Perform a lab to calculate the spring constant for a random spring by graphing points and drawing a line of best fit. Also shows harmonic motion with different levels of damping, as well as the energy transformations that take place for a vertically hanging mass on a spring. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1518797162234-A0W2VR38O0Y48C4C74VO/artgravImg.png 11/12 physics simulations - Artificial gravity What happens when you jump or throw a ball in a rotating space station? This simulation shows you that, while simulating scale radii and rotation speeds of space stations to give different sensations of gravity. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526000308306-08OKAOBFY8GWUACVHL2N/momentumImg.png 11/12 physics simulations - Momentum Perform conservation of momentum labs with elastic or inelastic collisions. It also has a ballistics mode, an explosion mode, and a built-in billiards game simulator. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525115349868-0FG90PEO1TVIZ4G0EMUO/ballPenImg.png 11/12 physics simulations - Ballistic Pendulum Simulates ballistic pendulums with adjustable speeds and masses. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526579869353-LLTLMY9RJNVWMDXUETV2/wavesImg.png 11/12 physics simulations - Mechanical Waves An introductory visual representation of transverse and longitudinal waves, with adjustable amplitude, wavelength and frequency. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525912661349-QQMZ8ZKHJYY11YFRLBB0/wave1DImg.png 11/12 physics simulations - Wave Interference, Transmission and Reflection 1D Create waves of different shapes to interfere with each other and reflect off of fixed or free ends. Also shows the interference of sinusoid waves, transmission/reflection into denser or less dense media, and standing waves. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525974462028-22LIM689GABQ0N7Z4OIR/standImg.png 11/12 physics simulations - Standing Waves See the first six harmonics of standing waves in strings and open/closed air columns. Harmonics can also be added together. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525827115410-2O4MRNP1T67GUXSPEZXZ/instrumentsImg.png 11/12 physics simulations - Harmonics in Instruments A visualization of the longitudinal wave creating by adding different harmonics. Shows the wave-forms of four instruments. Individual harmonics can be adjusted and acoustic beats can also be shown. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1567100165820-EEO37ZPT04B3SKB9Y5UR/diffractionImg.png 11/12 physics simulations - Diffraction and Interference Users can adjust the size of the opening to explore the effect on the diffraction of the wave. Also contains a “double slit” mode that shows the creation of a two-source interference pattern from a plane wave. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1515793665568-3XD2M2H8MPWRZUCWRXZ9/dopplerImg.png 11/12 physics simulations - Doppler Effect Visualize the Doppler Effect for firetrucks and supersonic aircraft. Also simulates the Doppler shifting of spectral lines from a star, and the spectra of nearby galaxies according to Hubble’s law. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525960474256-Q6PZBEFUGS3MLCVY8K0T/polImg.png 11/12 physics simulations - Polarization Simulates polarized and unpolarized light. Filters can be used to linearly or cicularly polarize the light. Also shows the effect of polarized sunglasses above water. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525906377864-HY47ZIBIZ2CTOK3QYVBO/thinFilmImg.png 11/12 physics simulations - Thin Film Interference, Soap Rings, Newton's Rings Simulates thin film interference for adjustable wavelengths/colours of light and adjustable indeces of refraction of the media. Also shows the interference pattern caused by soap rings and Newton’s rings with monochromatic or white light. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1515794094290-HVR0UI0IWSWCVN9DNPU1/gravityImg.png 11/12 physics simulations - Gravitational Fields Simulates gravitational fields in many different situations, including: binary star systems, the Earth/Moon/ISS/Geosynchronous satellite, comets and Kepler’s second law of motion, the Solar System (including geocentric models and epicycles), a galaxy system of 500 stars, and a cloud of gas condensing under its own gravity to form a star and orbiting bodies. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1524674495908-OKZYLZIGKMIWOA6K0EO8/cavImg.png 11/12 physics simulations - Cavendish Experiment A simple visual of the Cavendish experiment with values that can be used to calculate G. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1517505852930-NBIAMO8JKR9AS1I1IRQN/magImg.png 11/12 physics simulations - Magnetism Explore magnetic fields caused by bar magnets, straight wires and solenoids. This simulation also shows the motor effect, the generator effect (induction), as well as the magnetization of ferromagnetic materials by aligning the domains. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1582809884836-74L1G2C799Y9ZM47L0K6/image-asset.png 11/12 physics simulations - Electric Fields Visualize and explore electric fields, or animate them to watch their motions. https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1515788528140-K2IG4ZVQHTNYCNHWUBF4/millikanImg.png 11/12 physics simulations - Millikan Oil Drop Experiment Perform your own oil drop experiment and determine the elementary charge, an integer between 1 and 9, randomly selected each time the simulation is reset. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1521485622240-ESBQPOHEB9G363L668DH/acdcImg.png 11/12 physics simulations - DC Motors and AC Generators Simulates a DC motor and AC generator. Users can adjust the voltage / rotation speed. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525747563674-Z77GRGWSZRY7MHZ70OKC/massImg.png 11/12 physics simulations - Mass Spectrometry See the circular paths formed by charges moving in magnetic fields. The user can fire spheres of different masses and charges with different speeds into a magnetic field and a capacitor (or both) and measure the radii. Also simulates the separation of C12 and C14 isotopes, as well as velocity selectors. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525976130261-SLJ40P170MG29ZZ8LPLP/mmiImg.png 11/12 physics simulations - Michelson-Morley Interferometer Simulates the expected and actual results from the Michelson-Morley experiment as the user rotates the table with respect to the aether wind. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1515794782143-YVITLBFHJQQ477BWXIQL/relativityImg.png 11/12 physics simulations - Relativity Simulates time dilation and length contraction from both frames of reference. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1515859334052-F2ISC9NACP8XWATTD5VV/quantumImg.png 11/12 physics simulations - Quantum Double Slit Simulates the results of the quantum double slit experiment when the slits are observed or unobserved. Users can fire individual electrons or streams. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1535747491279-7J92FHGR72BPPJE7ZZA5/raceImg.png 11/12 physics simulations - Physics Racer Compare the speeds and accelerations of many vehicles and organism in a race to the finish line. https://mattcraig.org/home-1 daily 1.0 2026-05-09 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1492972840630-6OOZGE5TRBKKH1WLS12K/301578_10150846220135010_1359065805_n.jpg Home https://mattcraig.org/music-1 daily 0.75 2023-05-17 https://mattcraig.org/contact daily 0.75 2023-05-17 https://mattcraig.org/about daily 0.75 2023-09-15 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/f6f9c426-e6ec-4e1e-9371-7c6296e4a49c/1.JPG About https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/f6f9c426-e6ec-4e1e-9371-7c6296e4a49c/1.JPG About https://mattcraig.org/sims-910-science daily 0.75 2026-05-09 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526660301785-SIOBRISKFV02WLCHDLV5/seasonsImg.png 9/10 science simulations - Seasons, Eclipses, Tides Visualize the cause of daytime/nighttime, the seasons, solar and lunar eclipses, and solar and lunar tides. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526993567806-8WIRG1KYECJ6U31L2C9M/solarImg.png 9/10 science simulations - Solar System Study the planets, retrograde motion, planetary scales, and the scale of the solar system with this simple app. Also simulates epicycles. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1519220718661-TQAUB1BLQPQOY1TY01FB/starImg.png 9/10 science simulations - The Stellar Life Cycle Animation of the life cycle of a small star and large star from their formations to their deaths as a black dwarf or black hole. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1536280910714-CZ6YI2PFZV533FYY03PE/scalesImg.png 9/10 science simulations - Scales of the Universe My version of a “powers of 10” animation: a scale animation zooming into a single proton and zooming out to the entire universe. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525885529205-G39E6API78M4KZ5J78N7/mirrorsImg.png 9/10 science simulations - Mirrors Ray diagrams and images for plane, concave and convex mirrors. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1525910964430-7E80BM2MEY7WWZ5WPVUF/refractionImg.png 9/10 science simulations - Refraction Refraction and Total Internal Reflection. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526232934039-4LC7OGC7FKLIBKJIEPXG/lensesImg.png 9/10 science simulations - Lenses Ray diagrams for concave and convex lenses, refraction, total internal reflection, eyes (including myopia, hyperopia and corrective lenses), optic fibres, and apparent depth. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526126847187-J4YQXU9WYYCBENYL7RKN/electroscopeImg.png 9/10 science simulations - electroscope Induced charge separation, charging by conduction, charging by induction, and grounding. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1519219581385-XW9PZXC4JQ5L1D2PKWW9/mitosisImg.png 9/10 science simulations - Mitosis Mitosis in plant and animal cells. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1526003410978-5RGOUWZ088HWIJD6R6VS/cellImg.png 9/10 science simulations - Animal Cell Simulates and describes the main structures in an animal cell, including visuals of passive, active and facilitated transport, and DNA transcription. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1599085393034-62531K05NIA8MYOGR1U5/image-asset.png 9/10 science simulations - The Heart, Circulation, and Blood Vessels Shows the main parts of the heart and the order in which blood flows. Also has a simulation of arteries, veins and capillaries. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1522084474422-SQQC3OB0FPXV81FRO82G/nitrogenImg.png 9/10 science simulations - Nitrogen Cycle Hover over different objects to read descriptions of the key players of the nitrogen cycle. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1527858370183-RO7F17BEDAV3GG0IG0PO/carbonImg.png 9/10 science simulations - Carbon Cycle Hover the mouse over the different players to see how they are involved in the carbon cycle. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1536177164339-Y7RC3ZRX81EDDJQP50QM/biomesImg.png 9/10 science simulations - Terrestrial Biomes Explore the terrestrial biomes of Earth, various species of organisms that live there, and see the relative biodiversity of each. https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1519219154918-U4X8K329FMOWRSFEPSXY/bondingImg.png 9/10 science simulations - Bonding and Bohr-Rutherford Diagrams Create a Bohr-Rutherford diagram for any of the first 20 elements. Also allows users to create ionic and covalent bonds by dragging electrons or looping them between atoms. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1586797034660-7A0LQWFPJZP6KJUKWXLZ/image-asset.jpeg 9/10 science simulations - pH Scale Change the pH to see the amount of H or OH as well as associated substances. Also has a titration mode. YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1589156894764-HH025BHYTAOTZYZC3TUI/image-asset.png 9/10 science simulations - Circuit Diagrams An app I made to facilitate drawing circuit diagrams (doesn’t do any calculations or solving though) YouTube Tutorial https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1646400692478-BFKYHIJYPAEMMB1RDTG1/image-asset.png 9/10 science simulations - Logic Gates / Boolean Logic / Truth Tables Users can build logic gate circuits and generate truth tables for them. YouTube Tutorial https://mattcraig.org/games-other-sims daily 0.75 2023-05-17 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1578330136566-YWT8RPRO48XSY9V6QVW6/spaceBig.png Games - Super Mega Space Game A retro 90’s style space shooter. https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1557165972386-WKB1NU46VMVBABCFGQOE/tetrisImg.png Games - Tetris Arrow keys to move (up/down/left/right) and space bar to rotate. https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1582811855920-GBA2OJ1HMMLFGQ41N7DG/graphMakerImg.png Games - Graph Builder Build a graph with 3 data sets. You can also apply a linear fit to each. https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1522083403278-DHCX5OPWA3GTVRET0U1W/mineImg.png Games - Mine Sweeper The classic Microsoft game. Same controls with a difficulty selector. https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1522083403241-BB4UUWSJ1BIMZ8Y097TM/2048Img.png Games - 2048 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1582811855511-X8P7NDMSS1ZP5WZ3CVGU/crossword.png Games - Crossword builder Downloadable Only Your clues and answers must be saved in a file called “words.txt” in the same directory as this program is saved. It must have the format: Title answer1: sentence clue 1 answer2: sentence clue 2 https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1582811858742-U2H3ZYEMHRJALCUILC26/matt.craig.png Games - Mind Map Downloadable Only Type in terms and drag and connect them in a mind map https://images.squarespace-cdn.com/content/v1/58fce5d2414fb5f448a6a487/1522440672682-8M3S7WBA2DP0BPCHVBG1/cubesImg.png Games - Destroyer of Cubes DOWNLOADABLE ONLY A wave-based space FPS Instructions https://mattcraig.org/new-page daily 0.75 2018-08-27 https://mattcraig.org/privacy daily 0.75 2023-05-17 https://mattcraig.org/worksheets daily 0.75 2023-05-17 https://mattcraig.org/donate daily 0.75 2026-05-09