Assessment – Helicopters You need to research information (using the internet) that includes answers for the following questions: 1. How the turning rotor makes a helicopter move upwards 2. How the rotor is made to turn in a helicopter and in an autogyro 3. How autorotation is used to help land a helicopter safely if the engine fails 4. Why a helicopter; falling during autorotation‚ could reach a terminal speed without the pilot changing any controls 5. The effect of the weight of the helicopter on terminal
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2012 With a sheet of paper and a paper clip‚ the teacher made a helicopter. It twisted and followed a straight line fall. My objective is to find if there is a proportional relation between the weigh you add to the helicopter‚ with the stability and the speed. I´m going to analyze what happens to the acceleration and stability of the helicopter when the weight of the clip differs. How does the weight of the clip influence the speed and stability of the helicopter? I think that the velocity
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samples we used in our experiment. Preliminary Experiment At first in our preliminary experiment my group and me decided to use an ohmmeter instead of a multimeter. We did this as we thought it would make it easier for us to record our results. These are the results we got from our preliminary experiment: Length (mm) +/- 1mm | Diameter (µm) +/- 1 µm | Resistance (Ω) +/- 0.1 Ω | 200 | 30 | 1.2 | 200 | 45 | 0.8 | There were uncertainties in our experiment. Diameter = 3.3%
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Helicopters have a bad reputation. Many people unfamiliar with them think that helicopters are a collection of rotating parts‚ ready to fly apart and cause disaster at any time. Or they have seen a tail rotor shot off by a missile in an action movie and picture themselves spiraling to the ground‚ victims of inherent instability. People have had to make judgements about the riskiness of helicopter flight without good information‚ not because data about helicopter safety doesn’t exist‚ but because
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Introduction Sample x results Sample y results Elasticity and Elastic Limit Yield Point and Plasticity Ultimate Tensile Strength Stiffness Ductility Brittleness Hooke’s Law Young’s Modulus Conclusion Sample x graph Sample y graph Sample z graph List of references Page 2 Page 3 Page 4 Page 5 Page 5 Page 6 Page 6 Page 7 Page 7 Page 8 Page 8 Page 9 Page 11 Page 12 Page 13 Page 14 Page 1 of 15 University No. 11365048 The Tensile Test I have been provided with laboratory results from tensile tests
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Definition: A helicopter (or chopper‚ helo or whirlybird) is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically‚ to hover‚ and to fly forwards‚ backwards‚ and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft would usually not be able to take off or land. The capability to hover efficiently for extended periods of time allows a helicopter to accomplish tasks
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The factors that affect the motion of a falling object Scientific Knowledge When an object falls‚ many forces are acted upon it: gravity‚ friction‚ air resistance and‚ if in the water‚ up thrust. When an object starts to fall‚ gravity over powers air resistance‚ however‚ as an object starts to reach terminal velocity (its maximum speed) the opposite forces start to even out until they are equal. Some people believe that if the forces are balanced then the object has stopped moving‚ meanwhile they
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Rotor Makes A Helicopter Move Upwards How Does A Helicopter Work? In order to fly‚ an object must have "lift." Lift is what pushes something up. Lift is made by wings. Wings have a curved shape on top and are flatter on the bottom. That shape makes air flow over the top faster than under the bottom. The faster air on top of the wing makes suction on the top of the wing and the wing moves up. Airplanes get lift from their wings. A helicopter’s rotor blades are spinning wings. A helicopter moves air
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My lab results were similar to my hypothesis. My hypothesis was that the densest object would be the rubber stopper. In the lab results the densest object was the penny and the rubber stopper was second. My hypothesis was switched. My hypothesis was correct when I stated that the macaroni was the third densest object. My hypothesis was also correct for the dice‚ but the bead and the dice share the same density. So they are both the fourth densest item. I was wrong with my hypothesis when I placed
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Helicopters Part 1 stimulus material: Research and collecting secondary data How the turning rotor makes a helicopter move upwards: The blades or rotors on a helicopter are used to produce a lifting force which gets the helicopter off the ground. As they spin around they cut into the air and produce lift‚ each blade providing an equal share of the lift. To produce this lifting force air must flow over each rotor. This is why the blades spin at an angle against the air. The shapes of the rotors
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