c) horn Firstly, there are various factors that can affect your breaking distance. Use these flashcards to help memorize information. If a vehicle's speed doubles from 20 mph to 40 mph, the distance needed to stop the vehicle increases by how many times? (where d = 40 metres minus the reaction distance of 27.1 metres = 12.9 metres). b) there is no restriction Friction causes mechanical energy to be converted to which of these forms? It quadruples. When you are a new driver and practicing turning right or left with good traction and normal conditions, your speed should not exceed: Dashed white pavement lines separating two lanes indicate: Traffic is traveling in the same direction. When an energy transformation occurs, which of the following is true? Ten milliliters of either hexane (density = 0.65 g/mL) or chloroform (density = 1.49 g/mL) were added to a beaker that contained 10 mL of water, forming two layers with water on top. d) 5 to 7 p.m. To avoid a collision, you can use: d) reckless driving, Most states have blood-alcohol concentration limits of _____ percent for drivers under age 21. b) right-of-way d. A whole chicken is never cost-effective for a family. G{`%;' R7sr~fvgV!;D%gm7QBl_|ZJ":QBYVua2^NWm1zgnS7GSO}}lu%hgO{lZJDJs.Bqj. Find the phase voltage of the source. b) less than 5 mph Car 1, travelling at 65 km/h, is overtaking Car 2, which is travelling at 60 km/h. This resistance of an object to changing its state of rest or motion is called GLOSSARY Simply stated, and object in motion continues to move straight ahead until acted upon by some outside force. Otherwise, click the red Don't know box. (a) G(z)H(z)=1/z-, (b) G(z)H(z)=1/z-2, (c)G(z)H(z)=z1(c)G(z)H(z)=z^{-1} d) 20 mph, On a vehicle with a manual transmission, fourth and fifth gears are generally engaged at speeds over: d) .02 to .08, You will have ample time and space to make a decision and control your vehicle if you maintain a visual lead of: We figure that while the speed limit is 60 km/h the police won't pull us over if we sit on 65. d) all of the above are correct, Prior to starting the engine, always place your foot on the: and more. b) yellow, red, green High speed also increases the potential for driver error caused by over- or under-steering (turning the steering wheel too far, thereby cutting the corner, or not far enough, so that the car hits the outside shoulder of the road). Because of its energy of motion, when a vehicle's speed doubles, the vehicle needs about traction The gripping action that keeps a tire from slipping on roadway is called changing traction forces When braking and turning, you use the outside edges of the tire tread If a tire is under-inflated, the only part that grips the road well is the a) brake pedal Watch how a vehicles speed changes its braking distance. b) a no passing zone Click the card to flip . a) passing is permitted are in the same box the next time you log in. c) daytime running lights Approximately what percent of crashes are caused by driver error? b) brakes Thus, the impact occurs at about 30 kilometres/hour, probably fast enough to kill Sam. Which of the following is considered a vehicle communication device? The slope or grade of the roadway is importanta car will stop more quickly if it is going uphill because gravity will help. Traveling speed- you must maintain a constant traveling speed to prevent risk while driving uphill or downhill. When starting the engine, when should you release the key? d) the restriction applies only at night, ____________ laws are designed to help drivers understand who should be granted the privilege of proceeding first when more than one vehicle approaches an intersection at about the same time. If you forget it there is no way for StudyStack Oxidation, the burning of alcohol, takes place in your: Most people experience dips in energy between approximately midnight and 6 a.m., and again between approximately ____________, during which they are more likely to fall asleep while driving. Your braking distance will be shorter (aka better) if your brakes and tires are in good condition. b) FALSE, PCV stand for: a) 90% of all traffic crashes If Sam is 40 metres from the cars when the drivers see him, Car 2 will stop just in time. If you double your speed, your braking distance will become four times longer. It increases slightly. Because the pedestrian, Sam, is so much lighter than the car, he has little effect upon its speed. So we happily let the speedo hover just above the speed limit, unaware that by so doing we are greatly magnifying our chances of crashing. Why? c) to the rear left. There are two loads connected in parallel. Determine the amount of oxygen in the tank if the temperature is 28^\circ{}C and the atmospheric pressure is 97 kPa. 1030 0 obj <>stream Tv(s)=100(s+1000)(s+100)(s+10,000)T_{\mathrm{v}}(s)=\pm \frac{100(s+1000)}{(s+100)(s+10,000)}Tv(s)=(s+100)(s+10,000)100(s+1000). is real.] Just after rain begins When you double your speed from 20 to 40 mph, your vehicle's braking distance will become ____ times longer. When played, a CD player reads the CD's information at a constant rate of 1.4 1.4 1.4 megabits per second. q!o4$%pz n6&5rsEHt00wt I Reduce speed to a crawl and stop driving as soon as you can safely do so. When its speed triples? When a car's speed doubles, what happens to its kinetic energy? The current IAB\mathbf{I}_{A B}IAB in the delta load is 164516 \angle 45^{\circ}1645 A rms. In those few moments, Car 1 travels 27.1 metres and Car 2 travels 25.0 metres. (b) What net force acted on this car if its mass was 1,000.0 kg? The sequence of traffic lights from top to bottom is: Many of today's automobiles come equipped with automatic: Vehicle acceleration will produce a weight shift of: When the vehicle is stopped or traveling at a constant speed the suspension load is: First gear in a vehicle with a manual transmission should be used for speeds up to approximately: Regulatory signs that have a red circle with a red slash indicate to you: Prior to starting the engine, always place your foot on the: You should always change your oil every 3,000 miles. Keep reading! speed increases from 20 mph to 40 mph. The car, however, very rapidly increases Sam's speed from zero to the impact speed of the vehicle. d) none of the above, Communicating should be thought of as: Use the information in the figure to answer the following question. If, instead of hitting a pedestrian, the car hits a tree, a brick wall, or some other heavy object, then the cars energy of motion (kinetic energy) is all dissipated when the car body is bent and smashed. Based on the paragraph, which of the following is true? Terms of Service. They are properly secured. Under normal driving conditions, checks under the hood should be performed how often? d) the pavement is about to narrow, A "No Passing" sign is: Determine which of the following contains the greatest mass of aluminum: 122 g of AlPO4,266g\mathrm{AlPO}_{4}, 266 \mathrm{g}AlPO4,266g of Al2S3\mathrm{Al}_{2} \mathrm{S}_{3}Al2S3. The girl pushes the. 1. b) noon to 2 p.m. a) 9 to 11 a.m. O and A - The car is traveling at constant speed from 0 to 20 m/s. d) circular shaped, Regulatory signs that have a red circle with a slash indicate to you: If a vehicle's speed doubles, the distance needed to stop the vehicle increases by two times.. What is speed? d) turning, You should always change your oil every 3,000 miles. Emeritus Professor, University of New England, Visiting Fellow, Australian National University and adjunct professor at The University of New South Wales. For which of the following is kinetic energy converted to potential energy? to the front. Two. d) providing feedback, Areas where pedestrian traffic is high include: You would need to create a new account. inertiathe resistance of any physical object to any change in its state of motion, including changes to its speed and direction. Reducing the impact speed from 60 to 50 kilometres/hour almost halves the likelihood of death, but has relatively little influence on the likelihood of injury, which remains close to 100 per cent. When driving, you control the vehicle with the: a) brakes b) steering wheel c) accelerator d) all of the above are correct. b) approximately 3 seconds When turning to the right, the contact patches of which set of tires will increase in size? List and explain the factors that affect traction between a vehicles tires and the roadway surface. : a) four tires b) brakes c) the steering wheel and column d) the clutch and accelerator c c) school zones ___________________ laws are designed to help drivers understand who should be granted the privilege of proceeding first when more than one vehicle approaches an intersection at about the same time. 2.) c) emergency vehicle The kinetic energy of an object changes when which of the following changes? noun. Overall risk of a collision while using a cell phone increases by ____ percent. Meat does not brown in the microwave. b) toward the curb Explanation. Explain the relationship between inertia and traction. Thinking distance is the amount of time it takes for you to decide to hit the brakes, and then actually hit them. 10. See our Approximately how long does it take a new driver to reach the average experienced driver? The most common form of color blindness is the inability to distinguish between: All of the above; (Evasive breaking, acceleration, and steering). The center of gravity of a vehicle is that point around which all weight is evenly balanced. According to the ____ the amount of energy in the universe does not change. d) barbiturate, The effects of alcohol will start with the: a) 2 b) 3 c) 4 d) 8. c) 4. when driving, you control the vehicle with the a) brakes b) steering wheel c) accelerator d) all of the above are correct. That makes sense, right? a) evasive steering What is an Anti-lock braking system(ABS)? If a vehicle's speed doubles from 20 mph to 40 mph, the distance needed to stop the vehicle increases by ____ times. You can ask a new question or browse more science questions. it increases as the square of the impact velocity. What is the health continuum? endstream endobj 1008 0 obj <>/Metadata 96 0 R/OCProperties<>/OCGs[1023 0 R]>>/Outlines 109 0 R/PageLayout/SinglePage/Pages 999 0 R/StructTreeRoot 172 0 R/Type/Catalog>> endobj 1009 0 obj <>/ExtGState<>/Font<>/Properties<>/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 1010 0 obj <>stream a) when you first buy the vehicle It doubles. what 6 factors can affect braking distance. When driving, you control the vehicle with the: Vehicle acceleration will produce a weight shift of: When the vehicle is stopped or traveling at a constant speed the suspension load is: To operate a vehicle smoothly and safely you should direct your attention ahead: The fatality rate per million miles driven for drivers under the age of twenty is: Novice drivers account for ____ times more crashes than drivers with 5 additional years of experience. d) pressurized conditioning ventilation, When you are towing a trailer with good traction and visibility your following distance should be: c) 40 to 50 mph c) perfect condition vehicle d) 25 to 30 mph, When parking uphill with a curb, you should turn the front wheels: Reaction time can be slowed down if the driver is sleepy, sick, impaired, or distracted. In a balanced three-phase system, the source has an abc-phase sequence and is connected in delta. This force creates a problem when a driver change is a vehicles direction to suddenly. If you knew the answer, click the green Know box. b) braking time a) traffic is traveling in the same direction It is inertiathat will keep you moving when the car you are in comes to a sudden stop (unless you are restrained by a seatbelt). a) stimulant a) 5 mph Speed is still the most common factor in fatal road accidents, accounting for more than half of all road deaths each year. How many minutes does it take the player to read the entire CD? The AASHTO stopping distance formula is as follows: s = (0.278 t v) + v / (254 (f + G)) where: s - Stopping distance in meters; t - Perception-reaction time in seconds; v - Speed of the car in km/h; G - Grade (slope) of the road, expressed as a decimal. %PDF-1.6 % Can atoms of different elements have the same mass number? b) merging braking distance. b) 2nd drink a=6427pcR2Tc3,b=81pcRTc. List for substances that can reduce traction between a vehicle tires in the roadway. a) steering wheel What position for postural drainage is best? a) five sided d) red, yellow, green, Dashed white pavement lines separating two lanes indicate: What is the mass of the pendulum bob? c) every time you drive That means you should make sure your tires have the right air pressure level and plenty of tread. What happens when vehicle doubles in speed going from 20 MPH to 40 MPH? 1007 0 obj <> endobj At least once a month or as many as the manual recommends. It helps the driver maintain control under hard braking, LEFT ARROW - move card to the Don't know pile. You will need four times the distance to stop the vehicle as the speed increases. b) 25 to 35 mph This makes the car deviate from the straight line in which it is travelling and go round the bend. It stays about the same. All these factors show that the risk of being involved in a casualty crash increases dramatically with increasing speed. why? Check out the total stopping distance equations below for vehicles driving at various speeds. An adequate space margin is one that provides a driver with: All of the above; (space, time, visibility), Graduated Driver License Programs generally involve _____ stages. d) 400. c) idling 1. 12-15 seconds. Perception time, reaction time, and braking time. motion picture camera A vehicle's speed when going downhill tends to do what? three primary driver controls of the vehicle are, when targeting, the eyesight should primarily focus toward the center of your, when single vehicle crashes occur, they will typically involve improper what or what. We can now see why Car 1 is more likely than Car 2 to hit Sam. 0 As shown below, every time you double your speed, you multiply your braking distance by four. Car 1, though, will plough straight into him. d) all of the above are correct, The sequence of traffic lights from top to bottom is: and more. b) green and yellow What is total stopping time is made up of? If you've accidentally put the card in the wrong box, just click on the card to take it out of the box. This questions appears in the following tests: Idaho Bus. You may need a second or two to move your foot to the brake pedal. A microwave cookbook gives tips on cooking favorite and new dishes. c) you may not turn Look at the large card and try to recall what is on the other side. Each byte consists of exactly 8 bits. a) 1st drink Using the graph, you estimate the car's kinetic energy at a speed of 50 m/s to be ______ kJ. alkaline storage battery, 3 inventions Thomas Edison is responsible for. These calculations assume that the driver has an average reaction time. a) 45 to 50 mph when turning to the right, the contact patches of which tires will increase in size. Using data from actual road crashes, scientists at the University of Adelaide estimated the relative risk of a car becoming involved in a casualty crasha car crash in which people are killed or hospitalisedfor cars travelling at or above 60 km/h. metres travelled before brakes are fully applied. d) touch, The most common form of color blindness is the inability to distinguish between: Car B must have an engine providing more force than, a. If a vehicle's speed doubles, the forces involved in a collision will be quadrupled. This piece of information will be important for determining your total stopping distance. c) floor In the University of Adelaide study referred to earlier, this was certainly true in zones where the speed limit was 60 kilometres/hour: the risk doubled with every 5 kilometres/hour above the speed limit. The sides of the truck bed are at least 18 inches high. and a wall thickness of 0.5in0.5 \mathrm{in}0.5in. In vehicles equipped with a driver's-side air bag, sitting closer than how many inches from the steering wheel increases the chance of arm, neck or facial injury in the event of a crash? c) exchanging information Most people experience dips in energy between approximately midnight and 6 a.m., and again between approximately __________, during which they are more likely to fall asleep while driving. To allow enough distance to stop in response to threatening objects and conditions, you should identify a plant path of travel _____ seconds ahead. If the car is going 55 m/s, how many meters will it travel before it stops? If the value of the specific heat csc_{\text {s }}cs of air is 0.1965Btu0.1965\ \text{Btu}0.1965Btu /// lbR\mathrm{lb} \cdot{ }^{\circ} \mathrm{R}lbR at T1=1000F,v1=36.8ft3/lbT_1=1000^{\circ} \mathrm{F}, v_1=36.8\ \mathrm{ft}^3 / \mathrm{lb}T1=1000F,v1=36.8ft3/lb, determine the valuo of cvc_vcv at T2=1000F,v2=0.0555ft3/lbT_2=1000^{\circ} \mathrm{F}, v_2=0.0555\ \mathrm{ft}^3 / \mathrm{lb}T2=1000F,v2=0.0555ft3/lb. You will have ample time and space to make a decision and control your vehicle if you maintain a visual lead of: To signal that you are going to make a right turn, you should: When driving, you control the vehicle with the: All of the above; steering wheel, brakes, accelerator). Assume that air obeys the Berthelot equation of state: p=RTvbaTv2p=\frac{R T}{v-b}-\frac{a}{T v^2} 3. Adding reaction distance to braking distance, the stopping distance for Car 1 is 27.1 + 16.3 = 43.4 metres. c) 6 inertia Some one used Excel to finish the table and used 9.8 m/s/s for g. The KE entries appear to be slightly smaller than the GPE entries. When braking hard, the weight of the vehicle noticeably shifts where? When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again. . hbbd``b` $ H0Af@bJ$ $TE@[A($301210& d) none of the above is correct, When you park and leave a manual shift vehicle, it is best to set the parking brake and shift to: Also, it is helpful to determine the values of for which, G(ej)H(ej)G(e^{j})H(e^{j}) b) FALSE, Driver error contributes to: Modern cars with low streamlined bonnets are more pedestrian-friendly than upright designs, such as those found in 4-wheel drive vehicles, since the pedestrian is thrown upwards towards the windscreen with a corresponding slowing of the impact. c) 200 to send you a reset link. c) 2 to 4 p.m. Its kinetic energy is 80 J Under most conditions a minimum following interval of how long will enable you to adjust speed or position appropriately?
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