Basically this activity was based on three major objectives: By using a projectile launcher calculate the initial velocity of a ball shot horizontally.
Cause[ edit ] At present a "fully adequate theory of motion sickness is not presently available" but contemporary sensory conflict theory, referring to "a discontinuity between either visual, proprioceptive, and somatosensory input, or semicircular canal and otolith input", is probably the most Projectile motion report studied.
Such conditions happen when the vestibular system and the visual system do not present a synchronized and unified representation of one's body and surroundings.
According to sensory conflict theory, the cause of terrestrial motion sickness is the opposite of the cause of space motion sickness. The former occurs when one perceives visually that one's surroundings are relatively immobile while the vestibular system reports that one's body is in motion relative to its surroundings.
A variation of the sensory conflict theory is known as neural mismatch, implying a mismatch occurring between ongoing sensory experience and long-term memory rather than between components of the vestibular and visual systems.
This theory emphasizes "the limbic system in the integration of sensory information and long-term memory, in the expression of the symptoms of motion sickness, and the impact of anti-motion-sickness drugs and stress hormones on limbic system function.
The limbic system may be the neural mismatch center of the brain. When feeling motion but not seeing it for example, in the cabin of a ship with no portholesthe inner ear transmits to the brain that it senses motion, but the eyes tell the brain that everything is still.
As a result of the incongruity, the brain concludes that the individual is hallucinating and further concludes that the hallucination is due to poison ingestion.
The brain responds by inducing vomiting, to clear the supposed toxin. Treisman's indirect argument has recently been questioned via an alternative direct evolutionary hypothesis, as well as modified Projectile motion report extended via a direct poison hypothesis.
Nevertheless, the direct poison hypothesis argues that there still are plausible ways in which the body's poison response system may have played a role in shaping the evolution of some of the signature symptoms that characterize motion sickness.
Yet another theory, also as the nystagmus hypothesis,  has been proposed based on stimulation of the vagus nerve resulting from the stretching or traction of extra-ocular muscles  co-occurring with eye movements caused by vestibular stimulation. There are three critical aspects to the theory: Thus, with the exception of voluntary eye movements, the vestibular and oculomotor systems are thoroughly linked.
Second is the operation of Sherrington's Law  describing reciprocal inhibition between agonist-antagonist muscle pairs, and by implication the stretching of extraocular muscle that must occur whenever Sherrington's Law is made to fail, thereby causing an unrelaxed contracted muscle to be stretched.
Finally, there is the critical presence of afferent output to the Vagus nerves as a direct result of eye muscle stretch or traction. The theory explains why labyrinthine-defective individuals are immune to motion sickness;   why symptoms emerge when undergoing various body-head accelerations; why combinations of voluntary and reflexive eye movements may challenge the proper operation of Sherrington's Law, and why many drugs that suppress eye movements also serve to suppress motion sickness symptoms.
This theory attempts to integrate previous theories of motion sickness. For example, there are many sensory conflicts that are associated with motion sickness and many that are not, but those in which canal stimulation occurs in the absence of normal otolith function e.
The vestibular imbalance theory is also tied to the different roles of the otoliths and canals in autonomic arousal otolith output more sympathetic. Susceptibility[ edit ] Roughly one-third of the population is highly susceptible to motion sickness, and most of the rest may get motion sickness under extreme conditions.
The incidence of space motion sickness has been estimated over the years at between forty and eighty percent of those who have entered weightless orbit. Several factors influence susceptibility to motion sickness, including sleep deprivation and the cubic footage allocated to each space traveler.
Statistics indicate that women are more likely to be affected than men, and that the risk decreases with advancing age.
Writing projectile motion lab report is quite captivating and thrilling, but also challenging and time-taking. Here's a way to prepare a fine lab report fast. Projectile Motion Lab. IB Physics HL Lab Report on Projectiles. Use projectile motion equations to predict the path of a ball launched through. This lab is designed to allow you to apply the laws of Physics and equations for. Projectile Motion Purpose: An object in a projectile motion move horizontally with no acceleration and vertically with the gravitational acceleration at the same time. This experiment is to investigate projectile motion using experiments, equations and comparing the expected and experimental data.
There is some evidence that people with Asian ancestry may suffer motion sickness more frequently compared with people of European ancestry, and there are situational and behavioral factors, such as whether a passenger has a view of the road ahead, and diet and eating behaviors.
Motion sickness caused by motion that is felt but not seen, as in terrestrial motion sickness; Motion sickness caused by motion that is seen but not felt, as in space motion sickness; Motion sickness caused when both systems detect motion but they do not correspond, as in either terrestrial or space motion sickness.
Motion is felt but not seen[ edit ] In these cases, motion is sensed by the vestibular system and hence the motion is felt, but no motion or little motion is detected by the visual systemas in terrestrial motion sickness.
This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. February Learn how and when to remove this template message A specific form of terrestrial motion sickness, being carsick is quite common and evidenced by disorientation while reading a map, a book, or a small screen during travel.
Carsickness results from the sensory conflict arising in the brain from differing sensory inputs. Motion sickness is caused by a conflict between signals arriving in the brain from the inner ear, which forms the base of the vestibular system, the sensory apparatus that deals with movement and balance, and which detects motion mechanically.
If someone is looking at a stationary object within a vehicle, such as a magazine, their eyes will inform their brain that what they are viewing is not moving. Their inner ears, however, will contradict this by sensing the motion of the vehicle.
The sensory conflict theory notes that the eyes view motion while riding in the moving vehicle while other body sensors sense stillness, creating conflict between the eyes and inner ear. Another suggests the eyes mostly see the interior of the car which is motionless while the vestibular system of the inner ear senses motion as the vehicle goes around corners or over hills and even small bumps.Virtual Trebuchet is a free web based trebuchet simulator.
Welcome to Virtual Trebuchet VirtualTrebuchet is a web based trebuchet simulator that will allow you to quickly evaluate different trebuchet configurations. View Lab Report - Projectile Motion Lab Report from PHYSICS AP Physics at Clear Lake High School.
Names: Group 1 Lab # Projectile Motion Lab Report PRELAB QUESTIONS 1.
Compare the time to get to. This is a projectile motion experiment using a matchstick projectile which can easily be replicated. 97%. Toggle navigation thinkswap. Search By Subject; Shopping Cart 0; Click report to earn free Exchange Credits!
Report a Subject Change. Similar Documents to Projectile Motion Experiment. Experiment 2 – Free Fall and Projectile Motion Objectives Learn how to solve projectile motion problems.
Understand that the acceleration due to gravity is constant ( m/s2) and downward toward the center of the Earth. Title Projectile Motion Formal Lab Development and Report: Description Students will create there own questions and hypotheses for a projectile experiment.
For a given initial velocity, the projectile range will be measured for various initial angles, and also calculated by applying the theory for motion with constant acceleration. For further background information, refer to the sections in your textbook on projectile motion and motion Show this calculation in your lab report.