Motion

In: Science

Submitted By gamenlegend
Words 390
Pages 2
Name ____________________________________ Motion in 2D Simulation

Go to http://phet.colorado.edu/simulations/sims.php?sim=Motion_in_2D and click on Run Now.

1) Once the simulation opens, click on ‘Show Both’ for Velocity and Acceleration at the top of the page. Now click and drag the red ball around the screen. Make 3 observations about the blue and green arrows (also called vectors) as you drag the ball around.

When Velocity ends(stop dragging), acceleration reduces.
Acceleration decreases right before velocity peaks.
The vector for acceleration always appears to be at a right angle.

2) Which color vector (arrow) represents velocity and which one represents acceleration? How can you tell?
Velocity is green and acceleration is blue.
When velocity is constant or close to 0 acceleration declines

3) Try dragging the ball around and around in a circular path. What do you notice about the lengths and directions of the blue and green vectors? Describe their behavior in detail below.

Both are equal when moving around in a circular path. Velocity seems to increase and decrease very little and the acceleration remains the same

4) Now move the ball at a slow constant speed across the screen. What do you notice now about the vectors? Explain why this happens.

When moving slow and steady, there is barely any acceleration. Velocity is the measurement of speed/direction, and acceleration is the change of.

5) What happens to the vectors when you jerk the ball rapidly back and forth across the screen? Explain why this happens.

When jerked rapidly the acceleration increases rapidly. Because the velocity changes quickly from doing so, you see the vector for acceleration enlarge and stretch across as well.

Now click on ‘Circular’ on the bottom. Describe the motion of the ball and the behavior of the two vectors. Is…...

Similar Documents

Motion

...Tobi Gonzalez 2/25/13 Motion is Relative 1. The two units of measurement are distance and time. 2. The kind of speed is registered by an automobile speedometer is instantaneous speed. 3. Average speed is the speed averaged over duration of time. Usually the total distance covered divided by the total time. Instantaneous speed is the speed given at that instant within that span of time, measured with a real time speedometer. 4. The average speed in kilometers per hour for a horse that 
gallops a distance of 15 km in a time of 30 min is: Average speed = 15 km/30 min = 15 km/0.5 h = 30 km/h 5. Speed is the distance covered per unit of time. Acceleration is the rate in which an object changes its velocity. 6. If a car is moving at 90 km/h and it rounds a corner, also at 90 km/h, 
it does maintain a constant speed but not a constant velocity. The velocity never changed, only the direction it’s traveling. 7. Velocity is change in displacement, change in position over a period of time, while Acceleration is change in velocity over a time period. 8. The acceleration of a car that increases its velocity from 0, to 
100 km/h in 10s is 10km/h*s 9. The acceleration of a car that maintains a constant velocity of 
100 km/h for 10s is 0 km/h*s. Some of my classmates get this question wrong but the last question right because they fail to read the question. In the last question there was a change in velocity. However in this question there was no change in...

Words: 495 - Pages: 2

Motions

...Motions: * Politics This House would grant politicians immunity from prosecution PROS Giving politicians’ immunity from prosecution allows them to focus on performing their duties The premier reason that most states, even those that allow for the prosecution of politicians, abstain from prosecuting them while they hold office is that being a politician is a job that requires one’s undivided attention.  Especially for the holders of prominent national-level offices, writing legislation, responding to crises under one’s purview, consulting one’s constituents, and engaging in campaign work often lead to politicians working an upwards of 12 hour day, every day.  To expect politicians cope with all of these concerns will simultaneously constructing a defense against pending charges would be to abandon all hope of them serving their constituents effectively.  We are rightly aggravated when politicians take extensive vacations or other extracurricular forays. Being under indictment not only consumes even more of a politician’s time; the stress it causes will inevitably seep into what remaining time they do allocating to fulfilling their duties, further hindering their performance.  The impeachment proceedings for Bill Clinton on charges of perjury and obstruction of justice were so intensive that they took tremendous resources away from not only the president himself, but all branches of the federal government for several months, amidst serious domestic and foreign...

Words: 1640 - Pages: 7

Motion to Suppress

...Motion to Suppress Evidence A motion made to suppress evidence is made by a criminal when they believe that evidence was gathered in violation of their Fourth Amendment right of freedom from unreasonable searches and seizures (Motion, 2006). If the motion is granted by the court, this is often dispositive of the case because without the evidence, the case cannot proceed. This would be the case in this instance if the court granted the motion. However, there is no guarantee that if the evidence was illegally seized that the judge will suppress it because there are many exceptions to the rule. As long as the police acted in good faith when they violated the defendant's rights, the judge may excuse that conduct and the motion to suppress will be denied. In this case, the passenger's motion to suppress the seized evidence should not be granted. The search was legal for several reasons. First, the car was parked in a known high-crime area. Second, the officers observed a woman leaning into the car and giving something to the passenger. Third, when the officers approached the car, the woman began to walk away and the passenger was observed making "shoving down" motions suggesting to the officer he may be armed or was trying to hide something. When the officer told the passenger to let him see his hands, the passenger continued making the shoving down motions before complying with the request. Fourth, when the officer then reached into the car and touched the passenger's......

Words: 983 - Pages: 4

Research in Motion

...Research In Motion Ltd. (RIM) is a company known primarily for its BlackBerry devices and e-mail services. Throughout the early years of its career, RIM has faced many patent infringement suits regarding their wireless devices but one of them that lasted from 2001-2006 stands out among the herd. This specific case was the one between NTP (New Technologies Products) owner Mr. Campana and RIM’s owner Mr. Lazaridis over wireless e-mail patents. This ongoing battle between companies could have ended as soon as it began, but RIM’s actions dug them into a financial hole and put their customers in a state of panic. Research in Motion was founded in 1984 in Waterloo, Ontario by Mike Lazaridis who always had a passion for inventing (International Directory of Company Histories). Lazaridis from the early age of 8 gravitated toward technology constructing a pendulum clock out of Legos and in high school, built a working computer (Mckenna, Waldie, & Avery). Even in college he was focused and seemed mature for his years. He eventually dropped out of college, however, and started RIM with the backing of friends and family. Their first contract came from General Motors of Canada and for years after that moved from contract to contract. In the early 90’s, RIM became interested in digital wireless devices when Rogers Cantel Mobile Communications Inc, a paging and cellular telephone operator, contracted with them (International Directory of Company Histories). From this point on,......

Words: 1636 - Pages: 7

Motion Analysis

...Campbell Messner HPEZ 373 4/8/14 Motion Analysis Report: Hockey Slap Shot The hockey slap shot is a complex movement involving many different joints and muscles. In game situations the hockey slap shot is usually used by defenseman, but can be utilized successfully by forwards as well. There are six phases to a hockey slap shot: backswing, downswing, pre-loading, loading, release, and follow through. The hockey slap shot is most of the time made with a carbon fiber hockey stick that has a pre-determined amount of “flex” to the stick to get the puck moving at such high velocities. Accuracy of the puck placement usually depends of whether or not the puck is struck in the loading portion of the swing or in the release portion of the swing. The follow through is also important when determining placement. Unlike most primary sports movements, the hockey slap shot is a dynamic movement where the player is moving along the ice while striking the puck. This is what allows the slap shot to be so dangerous and interesting. To begin a slap shot a player must place the puck at around the middle of their stance for best power. The first movement of the slap shot is the backswing. Depending on which side the player stick handles, right or left, the dominant hand will be first on the stick and the non-dominant placed further down the stick. For the rest of the analysis we will use a player with a left-handed shot. In the backswing of the shot this is where the kinetic energy is......

Words: 1043 - Pages: 5

Pojectile Motion

...Lab # 111 “Projectile Motion” Objectives : The purpose of this lab is to understand projectile motion in two dimensions and apply linear motion equations to solve the problem. Also to predict where a given size bullet to be placed in horizontal direction to leaving table. In addition to that measure the range of projectile leaving table at an angle, and use the value to predict where the projectile bullet to strike at floor. Theory : To predict where bullet will land on the floor when lunched from the mini launcher from a table at an angle, but to do that first we need to determine the velocity of the bullet and to determine by launching the bullet horizontally from the table and measuring the vertical and horizontal distances through distance that the bullet travels. Then the initial velocity can be used to calculate where the bullet will land when the bullet lunched from the mini launcher at an angle. Horizontally lunched bullet at θ=0 off a table with an initial speed, vo, the horizontal distance travelled by the bullet and the vertical distance of the bullet drop in time t describe: x= v0t (1) y=v0yt+12gt2 (2) Now we can determine the initial velocity of the bullet by measuring x and y. where y = 0, therefore, the time of the bullet can be found by equation: t= 2yg, Where g = 9.8 (3) Now, to guess the range of the bullet, x, at and angle, θ, above horizontal, we guess the time of the bullet using vertical motion equation:......

Words: 525 - Pages: 3

Motion Study

...Motion Study of Gilbreths in Surgery Frank and Lillian Gilbreth are best-known for their motion study on bricklaying. However they did many other studies on various areas. They have motion studies for athletes, pianists , book keepers and fencers. All of these people were photographed when they were in action. Then those actions were divided into small micro motions to observe the unnecessary movements to eliminate. Surgeons were those people that Gilbreths studied on to improve the surgical operations by eliminating the unnecessary motions. Back in the days, the operations were taking so long because the doctors were trying to find the surgical instruments while operating. They had to stop and look for the equipment which was needed for the next action. Additionally, surgical practices and the instruments varied in the country which resulted incompetence. Gilbreths thought that the scientific management in industry can be applied to the surgical area and they decided to conduct a motion study in this area. Gilbreths observed the surgeons while they were doing the operation and saw that seeking for the surgical instrument took a great amount of time for surgeons that they always needed to stop for some time to get the next equipment. However, Gilbreths had hard time to convince the surgeons to get permission from them to attend their operations because Gilbreths needed to observe them. At first surgeons seemed willing to have Gilbreths in their surgical operations......

Words: 757 - Pages: 4

Motion Analysis

...Nic Juister Motion Graphics 2-18-15 Professor Tanya Cummings “Motion Analysis: Title Sequence” True Detective Main Title Sequence: http://vimeo.com/patrickclair/truedetective I chose True Detective’s main title sequence because it portrayed a style that I had never really seen before in motion. It contains photographic double exposure which have always peaked my interested with photography. However, Antibody studios took fragmented portraits, created using human figures as windows into partial landscapes, and gave them new meaning to show how characters are marginalized or internally divided through the double exposure. The double exposure photography combined with movement of film in a different opacity creates interesting compositions with formal and informal balance. Even though there isn’t much motion or special effects in the piece the viewer experience is not effected in anyway. The contrasting balance between large double exposure photographs with unknown content and minimal typography make the viewer want more, which is exactly what an opening title sequence should do. Keeping the viewer invested is the most essential element of a successful title sequence and this piece does just that. The opening title sequence sets the tone and mood for the TV show. True Detective is a thriller murder mystery that is dark and twisted and the grungy dark textures combined with the double exposures in contrasting space embody the feeling of the show. I believe True...

Words: 258 - Pages: 2

Motion

...Question 1 A Boeing 767-200 pasenger jet has a cruising speed of 870 km hr-1 at an altitude of 11900 m. At this cruising speed, its two General Electric CF6-80A engines exert a combined thrust of 390 kN. The frictional force of the air opposing the motion of the plane is A. 0 kN B. 390 kN C. 870 kN D. 1260 kN The following information refers to questions 2 to 10 inclusive. The circus has come to town and the principal attraction is Cleo, the human cannonball. There is a large compressed spring at the base of the cannon as illustrated below. It is this spring that will propel Cleo out of the cannon through the air to the safety net. The force-compression graph for the spring is also shown. [pic] [pic] Question 2 What is the spring constant for the spring inside the cannon? Question 3 How much energy is stored in the spring when it is fully compressed by 8.0 m'? Question 4 Cleo has a mass of 50 kg. Calculate Cleo's velocity just as she leaves the mouth of the cannon, assuming that the spring has transferred all of its energy to Cleo at this point. Question 5 The length of the cannon is 8.0 m. What is the net average force exerted on Cleo while she is travelling through the cannon? Question 6 What is Cleo's average acceleration while she is travelling through the cannon? The cannon makes an angle of 450 with the horizontal as shown in the diagram below. [pic] Question 7 How far (horizontally) from the mouth of the cannon must the centre...

Words: 2355 - Pages: 10

Projectile Motion

...11a, lab 1: Motion, Measurement and Statistics In the first lab we will investigate the motion of a ball rolling down an inclined plane. We will use this simple system to investigate the concept of systematic and random measurement uncertainties to understand how much we can trust a measurement. We will then compare the experimental outcome with theory. I. Ball on an inclined plane: Measuring motion We want to measure the motion of a ball that rolls down on an inclined plane and see whether this matches what we would expect. We will roll a ball down a tilted aluminum plate where gravity will accelerate the ball. It then rolls along a level surface (Plexiglas) where it should roll with approximately constant velocity as long as friction can be neglected. • Set up the experiment. Start by placing the large wooden board onto the table, and use the adjustment screws and the level to ensure the plane is level. Place the Plexiglas strip onto the wood and use a steel ball to check again that it is indeed level. • Place the ramp onto the metal inclines and use the magnets to secure it. Make sure the ramp touches the horizontal surface, but does not flex at the edge of the inclines. • One challenge is to launch the ball without giving it a kick. This is possible with a magnetic launch mechanism you can put together using an electromagnet, a power source and a switch. Clamp the electromagnet to the metal surface approximately 20 cm up the ramp....

Words: 2038 - Pages: 9

Research in Motion

...research in motion In the January of 2008, Research in Motion (RIM) is standing at the strategic juncture where important decisions need to be taken regarding global expansions. The biggest strategic issue it faces is to carry over yesteryears’ growth to next level through sustainable innovation at global level. Although its R&D expenditure has grown 6 times in the last four years, the ratio of R&D expenditure to sales has been halved. This ratio shows RIM is not utilizing its explosive growth to proportionately improve its technological innovations (important for sustainable revenue growth), which are the main sways of the mobile communication industry in which it is doing its business. Mobile communications industry is highly competitive being oligopolistic in nature. Gauging RIM on the Porter’s five forces model, I understand there are many a threats to RIM. The biggest threat is the Threat of Rivalry. RIM’s direct competitors have much bigger market share globally and they are spending much larger amounts (as well as R&D ratios to sales) on the R&D activities in comparison to RIM. They are also trying to convert the industry into network industry by sharing of Mobile OS (e.g. Symbian) across companies. Some of them have already expanded globally for tapping talent in emerging countries, an idea which RIM is pondering over. RIM’s Blackberry products have a product differentiation (temporary competitive advantage) of being a smartphone originally built for busy......

Words: 320 - Pages: 2

Motion Vector

...International Journal of Engineering Trends and Technology- Volume3Issue3- 2012 Hiding Messages Using Motion Vector Technique In Video Steganography P.Paulpandi1, Dr.T.Meyyappan,M.sc.,M.Phil.,M.BA.,Ph.D2 Research Scholar1, Associate professor2 Department of Computer Science & Engineering, Alagappa University,Karaikudi. Tamil Nadu,India. Abstract- Steganography is the art of hiding information in ways that avert the revealing of hiding messages.Video files are generally a collection of images. so most of the presented techniques on images and audio can be applied to video files too. The great advantages of video are the large amount of data that can be hidden inside and the fact that it is a moving stream of image. In this paper, we proposed a new technique using the motion vector, to hide the data in the moving objects. Moreover, to enhance the security of the data, the data is encrypted by using the AES algorithm and then hided. The data is hided in the horizontal and the vertical components of the moving objects. The PSNR value is calculated so that the quality of the video after the data hiding is evaluated. Keywords- Data hiding, Video Steganography,PSNR, Moving objects, AES Algorithm. I. INTRODUCTION Since the rise of the Internet one of the most important factors of information technology and communication has been the security of information. Steganography is a technology that hides a user defined information within an object, a text...

Words: 2564 - Pages: 11

Motion Lab

...the screen and the vectors that represent their motion. a. Which ball has the greater velocity? b. Which has the greater momentum? 2. Explain why the green ball has more momentum but less velocity than the red ball (HINT: what is the definition of momentum?). 3. Push “play” and let the balls collide. After they collide and you see the vectors change, click “pause”. Click “rewind” and watch the momenta box during the collision. Watch it more than once if needed by using “play”, “rewind”, and “pause”. Zoom in on the vectors in the momenta box with the control on the right of the box to make it easier to see if necessary. a. What happens to the momentum of the red ball after the collision? b. What about the green ball? c. What about the total momentum of both the red and green ball? 4. Change the mass of the red ball to match that of the green ball. a. Which ball has greater momentum now? b. How has the total momentum changed? c. Predict what will happen to the motion of the balls after they collide. 5. Watch the simulation, and then pause it once the vectors have changed. a. What happens to the momentum of the red ball after the collision? b. What about the green ball? c. What about the total momentum of both the red and green ball? 6. Now change the elasticity to 100%. Predict the motion of the balls after the......

Words: 408 - Pages: 2

Force and Motion

...Name Date Partners HOMEWORK FOR UNIT 5-1: FORCE AND MOTION 1. You are given ten identical springs. Describe how you would develop a scale of force (ie., a means of producing repeatable forces of a variety of sizes) using these springs. Decide on an extension length of the spring for which one spring extended by this length exerts one unit of force on the object to which it is attached. Two springs both connected to the object, pulling in parallel and both extended by this length would exert two units of force and so forth up to 10 units of force for 10 springs, extended by the standard length, all connected to the object and all pulling in the same direction. 2. Describe how you would use a force probe and the springs in (1) to develop a quantitative scale of force. Connect the springs to the hook on the force probe. Use these springs to calibrate the probe. One spring stretched to the predetermined length would correspond to 1 unit during the calibration procedure, 5 springs, in parallel pulled o the standard length would be entered as 5 units. The force probe should then be calibrated quantitatively to measure any force within its range in terms of the spring units. 3. What is meant by a proportional relationship? Is this the same as a linear relationship? Explain. “proportional” means that the dependent variable is a constant multiple, either positive or negative, of the independent variable. “Linear”means that the dependent variable is a...

Words: 1044 - Pages: 5

Force and Motion

...Force & Motion The First Law: Force and Inertia Object remains at rest will remain at rest unless acted upon by unbalanced force. Object in motion will continue at constant speed and motion unless acted upon by unbalanced force. Force is an action that can change motion. A force is what we call a push or a pull, or any action that has the ability to change an object’s motion. Forces can be used to increase the speed of an object, decrease the speed of an object, or change the direction in which an object is moving. Classification of Forces 1. Effects on motion- Balanced forces produce no motion or motion with constant velocity, while unbalanced force produce accelerated motion. 2. Line of Action- Parallel forces may go in the same direction or in opposite directions while Concurrent forces are those that meet at a point. 3. Relations to Work- Conservative forces are those that can do work and can stores energy. Non conservative are forces that can do work but cannot store energy. 4. Interaction of Bodies- Contact force when object is push by another & Distant force no contact between objects. Equilibrium 1. Stable- line passed through its center of gravity falls within the base. 2. Unstable- line dropped through the center of gravity does not fall with in the base. 3. Neutral- Does not change the center of gravity with slight tipping. Inertia is a term used to measure the ability of an object to resist a change in its state......

Words: 552 - Pages: 3