Phet Wave Simulation Answers

pHet Lab: Photoelectric Effect Waves were pretty well understood by the late 1800s. Phet Wave on a String Explanation Bill Chandler. Phet Simulations Wave Interference Answers. The interference pattern that results is symmetrical. Istfan electricity playless. (Forces and Motion: Basics from PhET Interactive Simulations at the University of Colorado Boulder) The Forces and Motion: Basics interactive simulation allows students to dynamically investigate the concepts of forces, net force, acceleration, Newton’s second law, and how forces affect motion in. Wave on a String simulator. A positive point charge q1 = +5. Phys1010 Homework 7 SIM Answer Key - PhET we will be using the Sound Simulation that we used in class is True False When the speaker is producing sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. It shows a graph along with an animation of the air molecules in the pipe. "Interactive simulations, such as PhET, allow students to integrate knowledge to help better identify problems we might be facing, and use this knowledge to develop innovative solutions. " Select a green light (that has a wavelength between 495. Using PhET Interactive Simulations in Lecture As Visual Aids and. The purpose is to investigate the nature of the buoyant force and. april 1414 resistances. Which wave has the lowest frequency? Wave 3 6. Now switch to the tab on the top of the PhET simulation titled “Prism Break. pdf FREE PDF DOWNLOAD There could be some typos (or mistakes) below (html to pdf converter made them):. In most ways, this idea reflects reality well — for instance, light is bendable when passed through a lens. can investigate water waves (inset), sound waves Like all PhET simulations, these are developed using the results of education research. Phet wave simulation answer key keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. pdf FREE PDF DOWNLOAD There could be some typos (or mistakes) below (html to pdf converter made them):. Access the PhET website. Now switch to the tab on the top of the PhET simulation titled “Prism Break. Waves – frequency, amplitude and wavelength c. “ Give it a try – this is a great idea. pdf Free Download Here PhET Wave Reflection, Diffraction and Interference Open the PhET simulation “Wave Are your answers to above consistent with your answers to part 1c Physics 2020, Spring 2009 Lab Light and Sound Wave Simulation. Pest and Lawn Ginja 1,026,715 views. pHet Lab: Photoelectric Effect Waves were pretty well understood by the late 1800s. Student worksheet to use for online lab simulation WAVE BASICS PHET SIMULATION: Waves on a String. Salt buffers can help solutions be more resistant to pH change. As part of your answer. Waves on a String Phet simulator URL. PhET simulations media is one of the options that can help implementation of new curriculum on learning. I) Introduction: When a light ray strikes a smooth interface separating two transparent materials (like air, glass, or water), the wave is partly reflected and partly refracted (or transmitted) into the second material. Simple Wave Simulator The Simple Wave Simulator Interactive provides the learner with a virtual wave machine for exploring the nature of a wave, quantitative relationships between wavelength, frequency and speed, and comparisons between transverse waves such as those traveling through a rope and longitudinal waves such as sound. Wave speed is the distance a wave travels per unit time Summary table of Physical Quantities in Waves Key Concepts Sound Waves A longitudinal wave is a wave where the particles in the medium move parallel to the direction of propagation of the wave. Circuit Construction Kit (DC Only) PhET is upgrading to Java 1. Chemistry Solutions: Featured Simulations Each issue of Chemistry Solutions, the periodical of. The sliders can be used to change the height and width of the pulses, as well as the animation speed. Guild Of Light - Tranquility Music 1,031,875 views. Explore forces, energy and work as you push household objects up and down a ramp. Index of Refraction and Snell's Law Classwork. 528Hz Tranquility Music For Self Healing & Mindfulness Love Yourself - Light Music For The Soul - Duration: 3:00:06. The charges are q1 = q4 = 1. PURPOSE: Waves on a String: Watch a vibrating string in slow motion. What is q (in Coulombs) if the net electrostatic force on particle 1 is zero?. Exploring Waves The PDF file below accompanies the Simple Wave Simulator Interactive. pdf FREE PDF DOWNLOAD NOW!!! Source #2: answer key to phet neuron simulation. SCIENCE AT GILMORE COLLEGE. pdf), Text File (. PhET simulations can be run online or downloaded for free from the PhET website. pdf DOWNLOAD HERE. PhET Lab experiments represent real interactive, and research-based simulations of physical phenomena from the PhET™ project at the University of Colorado. Wave on String. It was designed for beginners. This is a perfectly ideal simulation, with no losses, and I note that the frequency and length of the string are very slightly mismatched regarding the length required to support a 4th harmonic standing wave. https://phet. It was known that greater amplitude meant greater energy. Take several minutes to familiarize yourself with the simulation. You will also need to PAUSE the wave to measure the wavelength of the wave in centimeters (cm). ACTIVITY 1 - Water Waves (1 source) 1. Physical Science Wave Calculations Answer Key Georgia milestones physical science eoc: test prep , this convenient online course can help you get ready for the georgia milestones physical science eoc assessment our expert instructors take you. Examples of models could include drawings, simulations, and written descriptions. a) How is the radiating electric. Examples could include using graphs, charts, computer simulations or physical models to demonstrate amplitude and energy correlation. answer key to phet neuron simulation. 5 or higher. Index of Refraction and Snell's Law Classwork. Click on the Expand box in the top right corner of the simulation so that the simulation completely fills the screen. Open Waves on a String simulation in PhET Write answers to the following after your group has talked about each and agreed. What is the speed of a wave? Measure the speed of the wave using the settings as they are. Brush up on your multiplication, division, and factoring skills with this exciting game. edu/en/simulation/charges-and-fields Add one positive charge and click plot. To get started with the applet, just go through the items in the Example menu in the upper right. A small object with mass 7. “ Give it a try – this is a great idea. 6 Reasons Why You Should Include Simulations in Your STEM Lessons! Using this PhET simulation means that my students I use the Wave on a String simulation to. Observe animations of earthquake waves. Take several minutes to familiarize yourself with the simulation. 5! Effective September 1st, 2008 , to run the Java-based simulations you will need to upgrade to Java version 1. Adjust the damping and tension. PhET: Bending Light. Describe why using the simulation is a good method for studying projectiles. Standing waves and Beats Lab - PhET. esearch on learning shows that students learn better when they construct their own understanding of scientific ideas within the framework of their existing knowledge (1). However, the answers to the questions, data tables, and graphs need to all be completed on a separate sheet of paper. edu/en/simulation/charges-and-fields. Author: Jackie Esler. JAR files that make up each simulation and it also comes with Java built in, so you don't have to download it yourself. Best Answer: Oh there are two types of wave : Transverse wave and longitudinal wave. Interference of waves c. Guild Of Light - Tranquility Music 1,031,875 views. D) No, it only occurs for light. Electromagnetic Waves and the Behavior of Light. PhET simulations can be incorporated into any kind of lab or tutorial that uses real equipment with a corresponding simulation. PhET Simulation: Wave Interference This interactive simulation allows users to explore the properties of waves. Make waves with a dripping faucet, audio speaker, or laser! Add a second source to create an interference pattern. Our school is very handicapped as far as computer time goes (we have one lab which is constantly monopolized by the language arts department) and some of my students do not have internet access at home so the lecture option would have to work a lot of the. Snell's Law Hands-On Practice WS 1. Index of Refraction and Snell's Law Classwork. Wave unit (Inquiry Based) Description This is my entire wave unit. Perfect for at home, in class, or on the road, this app delivers all PhET HTML5 sims (over 45 sims) in one easy-to-use package. Previous studies. Try to recreate the pictures shown on page 1 with the simulation. In this tornado simulator, the fastest wind speed is 220 miles per hour, but tornadoes' wind speeds can be as high as 300 miles per hour. When answers must be calculated, show all work. They have never seen this activity before. The Ramp And Friction Phet Simulation Lab Answers To Answer Sheet. Pest and Lawn Ginja 1,026,715 views. • I will be able to explain how amplitude is not related to frequency or wavelength. 2 PhET is an ongoing program to develop an extensive suite of freely while, interacting with the simulation, they are allowed to revise their answer; or 2) The student Figure IV – 'Projectile Motion' is a Flash simulation are completing a homework assignment or using a simulation in lab where they need to use. Like if there are two waves travel at the opposite direction, they gotta pass through each other. The sliders can be used to change the height and width of the pulses, as well as the animation speed. Explore the wonderful world of waves! Even observe a string vibrate in slow motion. This PDF book include wave on a string phet lab answers guide. NSET 110 Light and Sound Wave Simulation Name:_____ Click on the “Wave Interference” simulator and click “Run Now” A. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. When you change the frequency, how does the sound change? How does the visual model change?. "!!Explore!the. You Tube - Refraction and Snell's Law Calculations. Compare what you learned from the simulation to your ideas from. The worksheet Students input answers and receive immediate feedback. Using PhET Interactive Simulations in Lecture As Visual Aids and. can a magnet induce electricity youtube electromagnetism Link. HW Answers URL. sims PhET Home to find additional materials for labs or demonstrations. Because working tion of superposition states, and the collapse of the wave memory is limited, education should focus on essential function when a position measurement is made. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Put up a barrier to explore single-slit diffraction and double-slit interference. PhET is a suite of research-based interactive computer simulations for teaching and learning physics, chemistry, math, and other sciences. After the notes, I have students turn to the PhET Simulation Activity. Click on the Expand box in the top right corner of the simulation so that the simulation completely fills the screen. Question: PhET Simulation - Wave On A String PART 3, C NEEDS ANSWERED Light Is A Type Of Electromagnetic Radiation, And Light Exhibits Wave-particle Behavior. SNELLS LAW PHET SIMULATION ANSWERS We now provide you the technology to get the Snells Law Phet Simulation Answers not in a thick printed file. Learn how to make waves of all different shapes by adding up sines or cosines. Play with the Amplitude setting in the simulator to find the answer. including non-traditional topics such as real-world ap- ence in many physics labs, there is much going on inside 2: Quantum Wave Interference simulation. Turn on Rulers. Activity for Trigonometry Students. Li, Zhongyi; Wang, Hao. View Lab Report - (PhET Refraction Lab Answer Key. PhET simulations can be run online or downloaded for free from the PhET website. A high-tech alternative is the “virtual ripple tank. an experiment. Beginning Observations – Open the Photoelectric Effect PhET Simulation. The end can be fixed, loose, or open. This section contains more than 70 simulations and the numbers continue to grow. In this computer based activity you will apply the properties of sinusoidal function to model the movement of energy on the sting. Next, download the activity PDF file called Physics Web Quest: Torque. pdf FREE PDF DOWNLOAD Wave on a String - Interference, Harmonic Motion. JAR files that make up each simulation and it also comes with Java built in, so you don't have to download it yourself. Important modeling notes / simplifications: used in the PHET Photoelectric Effect Computer Simulation* • Electrons are emitted with a range of energies because photons can eject electrons with a range of binding energies. More » Engines. This interactive simulation allows users to explore the properties of waves. Wavelength - The distance between two successive, identical parts of the wave. projectile motion phet simulation lab answer sheet. Phet Electromagnetic Wave Simulation Answers document other than just manuals as we also make available many user guides, specifications documents, promotional details, setup documents and more. If the tension is constant, then the velcotiy and the. e:\sphs physics\labs and demos\lab instructions\electricity\phet resistance in series and parallel circuits. This is a perfectly ideal simulation, with no losses, and I note that the frequency and length of the string are very slightly mismatched regarding the length required to support a 4th harmonic standing wave. , Weber State University. Run the simulation at http://phet. Powered by Create your own unique website with customizable templates. Use The Button At The Bottom Of The Simulation Window To Pause The Animation. Compare the speeds that the individual pieces of the string have as each wave passes by. Convergence of light wave. View Phet_Waves_on_a_String. Light KEY. com free books and manuals search - 2012 NRP 6th Edition - Palmetto Health Richland Wave on a string - phet: free online physics, chemistry. 5 wavelengths 3. The William and Flora Hewlett Foundation Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time. Open the one called listen to a single source. Many of the PHET simulations require java to run but they are currently updating them to work as HTML5 programs that do not require java so they will run on chromebooks. This simulation lets you see sound waves. Torque PhET simulation lab Go to the PhET lab simulation page below (Torque Lab), and open the simulation. Phet Wave Simulation Lab Answers PhET Simulations Provide Interactive Learning. The premium Pro 50 GB plan gives you the option to download a copy of your binder to your local machine. A common example is the vibration of the strings on a musical stringed instrument. The interference pattern that results is symmetrical. pdf), Text File (. Obtain, evaluate, and communicate information to explain the properties of waves. To download free phys faraday phet sim lab. Since we don't have much time left in class, I just have students start the activity. This is a simulation of a ripple tank. Thisinterference can be seen when two wave sources are used and their overlaps viewed. My activity sheet is also meant to direct the students in their learning so that they are confident in what material needs to be digested. Which wave has the highest frequency? Wave 2 5. light sound wave simulations answers - Free download as Word Doc (. &Explore&the&simulation. standing wave: A wave form which occurs in a limited, fixed medium in such a way that the reflected wave coincides with the produced wave. Ocean Wave Simulation Based on Wind Field. pdf FREE PDF DOWNLOAD There could be some typos (or mistakes) below (html to pdf converter made them):. pdf FREE PDF DOWNLOAD NOW!!! Source #2: phet color vision answers. Open Waves on a String simulation in PhET Write answers to the following after your group has talked about each and agreed. pdf Free Download Here PhET Wave Reflection, Diffraction and Interference Open the PhET simulation “Wave Are your answers to above consistent with your answers to part 1c Physics 2020, Spring 2009 Lab Light and Sound Wave Simulation. Dispersion of light waves. Investigate the effects of damping on a wave. PhET simulations are free, online interactive simulations for teaching and learning science. Visible spectrum phet lab answers lionandcompasscom, [pdf]free visible spectrum phet lab answers download book visible spectrum phet lab answerspdf greenhouse effect phet mon, 29 apr 2019 01:00:00 gmt how do greenhouse gases affect the climate? explore the atmosphere during the ice age and today what happens when. Adjust the frequency or volume and you can see and hear how the wave changes. Guild Of Light - Tranquility Music 1,031,875 views. 5 or higher. Our team of designers, researchers, educators, and developers is dedicated to producing high quality STEM resources. I wanted to demonstrate how I use the PhET activities in the context of other activities in my course. Students discover how E/M light is produced by exploring the PhET Neon and Other Discharge Lamps Simulation. This PhET simulation, from the University of Colorado, allows you to explore the properties of water, sound, and light waves. PhET is a non profit open educational resources project. Instructors are permitted to make and distribute copies for their classes. Its amazing this Molecule Polarity Phet Lab Answer Key PDF complete, I really do not think the contents of this Molecule Polarity Phet Lab Answer Key PDF Online is so embedded in my mind and I have always imagined that paradise I can actually read this Molecule Polarity Phet Lab Answer Key. Explore the wonderful world of waves! Even observe a string vibrate in slow motion. A high-tech alternative is the “virtual ripple tank. This activity gives students a chance to investigate the relationships of different properties of a wave based on the Wave on a String simulation. Phet Density Simulation Answer Key. Rotate the merry-go-round to change its angle, or choose a constant angular velocity or angular acceleration. PURPOSE: Waves on a String: Watch a vibrating string in slow motion. com/user/NorthwestISD https://www. (launched). Editorial Response 1 : R5: Wave Propagation Waves Standing Wave Excel file Short Quiz Kinetic, potential energy density. 15 Waves Wave visuals: Transverse and Longitudinal Answer "Checking Your Understanding" questions at the end of. (Google phet string waves) Select Manual, put on 80% tension, put damping down to zero. Your text, your lab partner, or the internet may be needed to find answers to some of the following questions. features to reduce cognitive load. Light, prior to the early 20th century, was considered to be a wave phenomenon. Students use three different colored lights in different combinations in order to determine which colors are perceived. This activity gives students a chance to investigate the relationships of different properties of a wave based on the Wave on a String simulation. If more of a photon’s energy is used to release an electron, the emitted electron will have less kinetic energy. Important modeling notes / simplifications: used in the PHET Photoelectric Effect Computer Simulation* • Electrons are emitted with a range of energies because photons can eject electrons with a range of binding energies. Pitch & Loudness KEY. [PDF] [PDF] [PDF] [XLS] [PDF] Phet Tutorial Geometric Optics Mastering Physics Answers Department of Physics, University of Colorado at Boulder. Set the position, velocity, or acceleration and let the simulation move the man for you. There are 5 tabs. Perfect for at home, in class, or on the road, this app delivers all PhET HTML5 sims (over 45 sims) in one easy-to-use package. 528Hz Tranquility Music For Self Healing & Mindfulness Love Yourself - Light Music For The Soul - Duration: 3:00:06. Make waves with a dripping faucet, audio speaker, or laser! Add a second source to create an interference pattern. peer instruction) 3. Anatomy of a Wave: part 2. Phet Wave on a String Simulation wave affects the other characteristics. pause the video and try to answer. In a second simulation, the Greenhouse Effect caused by glass is illustrated. Investigate how the simulation works, and then answer these questions: a. Longitudinal Waves. Ppmf102 - lab 4- phet simulation - pendulum ii - word2003. This simulation will allow students to answer the question; How did Rutherford figure out the structure of the atomic nucleus without looking at it? They will simulate the famous experiment in which he disproved the 'Plum Pudding' model of the atom by observing alpha particles bouncing off atoms and determining that they must have a small core. This is very interesting interactive simulation of wave motion on a string. pdf from SCIENCE 10 at Mascoutah High School. Uniform Circular Motion Simulation Answer Key Physics Classroom Riverboat Simulator Activity Sheet · Projectile Simulator · Projectile Simulator The simulation animates the motion of a coaster car along the track designs and about any stage of a learning cycle in a work-energy unit or a circular motion unit. 5! Effective September 1st, 2008 , to run the Java-based simulations you will need to upgrade to Java version 1. 81 m/sec 2. The sonometer consists of four parts; the clamp which holds the string in place, the bridge supports which designate the endpoints of the string, the tensioning lever which provides a location to attach mass for tension, and the base which holds it all together. What is q (in Coulombs) if the net electrostatic force on particle 1 is zero?. "!!Explore!the. AP ® Physics 1 and 2 Inquiry-Based Lab Investigations: A Teacher’s Manual New York, NY. PHET Digtial Wave Lab: Description This is an unguided lab that I have set up for my 7th grade students. HW Answers URL. This list is a subset of a collection of links to games, simulations, and virtual labs that span a larger range of STEM (Science, Technology, Engineering & Math) education topics. Be specific in your answers. I wanted to demonstrate how I use the PhET activities in the context of other activities in my course. Chapter 18 Updated Textbook. • I will be able to explain how amplitude is not related to frequency or wavelength. Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. "!!Explore!the. Constructive interference of light waves. Full Review of your Favourite Game and Links. Previous studies. Pre-Lab Before you get a computer, label the following diagram based on the definitions given: Rest Position: The position of the medium when there are no waves in it. PhET is a suite of research-based interactive computer simulations for teaching and learning physics, chemistry, math, and other sciences. pH Scale Simulation: PHET Interactive Simulations. 93 × 10-2 m. Open the one called listen to a single source. Wave Interference: Make waves with a dripping faucet, audio speaker, or laser! Add a second source or a pair of slits to create an interference pattern. Pendulum Simulation 2. Snell's Law Basic Ray Diagram. PHET SIMULATION WAVES ON A STRING. This webpage contains an activity that allows users to guide a charged object, or "puck", through a maze using the electric field created by point charges placed by the user. Mechanical Waves are waves which propagate through a material medium (solid, liquid, or gas) at a wave speed which depends on the elastic and inertial properties of that medium. At certain points during the period, I will interrupt the students with discussions of what they've learned so far. This PDF book include wave on a string phet lab answers guide. How to prevent and control crabgrass - Duration: 10:53. The William and Flora Hewlett Foundation Makes grants to address the most serious social and environmental problems facing society, where risk capital, responsibly invested, may make a difference over time. pdf Free Download Here Phet Waves On A String Answers http://www. PhET Simulations. Sound Wave Simulator Click on the top tab that says sound. This collection of interactive simulations allow learners of Physics to explore core physics concepts by altering variables and observing the results. You probably want to print it out. Answer each of the following questions using a complete sentence. Properties of Waves using the Wave on a string simulation Author: Jackie Esler Wave-on-a-String Name: _ 1. Description This is an animated simulation of the superposition of two waves pulses. Place the red X under Phet on top. Subject Physics: Level High School, K-5, Middle School: Type Homework, Lab: Duration 90 minutes: Answers Included No: Language. The utility of PhET simulations has been applied beyond the introductory sequence in advanced courses, such as junior-level undergraduate physical chemistry, where students have used the Gas Properties simulation to examine the dynamics of molecular interaction to develop an understanding of the mechanisms and meaning of the Boltzmann distribution. It was designed for beginners or non-science majors with little or no background in physics. You probably want to print it out. Developing and Researching PhET simulations for Teaching Quantum Mechanics. Learn about position, velocity, and acceleration graphs. Nsta_phet_one_hour_2009. This lab allows the user to visualise the gravitational force that two objects exert on each other. Observe animations of earthquake waves. The Physics Education Technology (PhET) Project, known for its interactive computer simulations for teaching and learning physics, now includes 18 simulations on quantum mechanics designed to. Move the listener around and hear what she hears; Sample Learning Goals •Explain how different sounds are modele. Chapter 18 Updated Textbook. PhET simulations have been used over 60 million times, and are available in 65 languages with 22 full website translations. Never trust an atom, they make up everything. Wind force is the main energy resource for generating ocean waves, which are the result of the interaction between wind and the ocean surface. This is known as diffraction. Transverse Wave Animation [email protected] The Interference of Waves; Standing Waves; Radiation Pressure; Examples. Use The Button At The Bottom Of The Simulation Window To Pause The Animation. Generate further inquiry. Free PDF ebooks (user's guide, manuals, sheets) about Phet refraction simulation answer key ready for download. 2 PhET is an ongoing program to develop an extensive suite of freely while, interacting with the simulation, they are allowed to revise their answer; or 2) The student Figure IV – 'Projectile Motion' is a Flash simulation are completing a homework assignment or using a simulation in lab where they need to use. answer key to phet neuron simulation. Are all three spectral colors - blue, green, red – needed to produce this color? yes 3. My activity sheet is also meant to direct the students in their learning so that they are confident in what material needs to be digested. PhET is upgrading to Java 1. The Particle Nature Of Light Encompasses The Concept Of Photons Being Specific Packets Of Energy. Chapter 12-15 Learning Goals: Waves (Light and Sound) Students will be able to: Waves on a String • Students will be able to discuss waves’ properties using common vocabulary and they will be able to predict the behavior of waves through varying medium and at reflective endpoints. Record this value in the wavelength column for Trial 1 in the Data Table. edu/new/simulations/sims. The demos selected for this lab allow students to trace the development of atomic theory from the late 1800s into the mid 20th century. Phet Wave Simulation Lab Answers PhET Simulations Provide Interactive Learning. Beginning Observations – Open the Photoelectric Effect PhET Simulation. One of the predictions of the theory of electromagnetism is the existence of electromagnetic waves, which offer a complete description of the classical properties of light. The simulations emphasize visual models, cause-and-effect relationships, and multiple representations. The phenomenon is the result of interference—that is, when waves are superimposed, their energies are either added together or cancelled out. Go to the PhET lab simulation pages below Run the Flash and JAVA simulations as directed to answer all the questions. Calculate the speed of this sound wave by recording how much time it takes to travel 5 meters. They exist as waves on strings, sound in air and in solids, light, radio waves, microwaves, x-rays, and matter waves. pdf FREE PDF DOWNLOAD There could be some typos (or mistakes) below (html to pdf converter made them):. COLOR VISION PHET ANSWERS - PDF Download. Updated 4/3/2019 - 206 simulations of mine plus 4 others Beyond physics. Optics is the study of the properties of light. Conceptual Physics PhET-based Tech Labs There are tech labs for every part of Conceptual Physics: Mechanics, Properties of Matter, Heat, Sound, Electricity and Magnetism, Light, and Atomic and Nuclear Physics. 5m on the class table (do not damage the slinky) From one end, give the spring a flick (down the spring, at your partner) with your finger. This lab enables students to access some of the terrific physics and chemistry demos provided by the PhET Interactive Simulations Internet site of the University of Colorado at Boulder (https://phet. peer instruction) 3. Go to the PhET lab simulation page below (Forces in 1 Dimension) and open the simulation. Virtual Labs and Simulations for Physcial Science. A positive point charge q1 = +5. Change the Frequency to 25. Explain key design features of PhET simulations, and when/why you might want to use (or not use) a PhET sim 2. Record this value in the wavelength column for Trial 1 in the Data Table.