Tsopelas Science



SPH 3U Final Exam Review 2017Multiple Choice: Identify the choice that best completes the statement or answers the question.A horse leaves the stable and trots 350 m due west to the end of a field. The horse then trots 210 m due east back toward the stable. What is the total displacement of the horse?a.550 m [E]b.550 m [W]c.150 m [E]d.140 m [W]Which statement is true about the type of motion represented by this position-time graph?a.4339590123825The velocity of the object is decreasing as it moves in an eastward direction.b.The velocity of the object is increasing as it moves in an eastward direction.c.The object is moving in an eastward direction at a constant velocity.d.The velocity of the object is increasing as it moves in a westward direction.A car is passing another car on the highway. It increases its velocity from 12 m/s [E] to 21 m/s [E] over a time interval of 10 s. What is the car’s average acceleration?a.0.6 m/s2b.0.9 m/s2c.1.9 m/s2d.0.3 m/s2A student runs 9.0 m [W] and then turns and runs 12.0 m [N]. If he is able to do this in 5.0 s, what is his average velocity?a.3.0 m/sb.4.2 m/sc.3.0 m/s [W 53° N]d.4.2 m/s [W 53° N]A rabbit walks through a field for a displacement of 35 m [W] and then turns to run away from a snake and heads 55 m [W 34° N]. What is the rabbit’s total displacement?a.77 m [W 25° N]b.66 m [W 17° N]c.81 m [W 18° N]d.86 m [W 21° N]Students launch a water balloon out of a water balloon launcher with an initial velocity of 32.0 m/s at an angle of 43.0° above horizontal at an initial height of 2.30 m. What is the maximum height that the water balloon reaches? a.28.4 mb.25.4 mc.30.1 md.26.6 mWhich of the following best describes a free-body diagram?a.a sketch showing all the objects involved in a situationb.a diagram that represents a specific area drawn to scalec.a simple drawing that shows all the forces acting on an objectd.a diagram showing the network of a multi-body systemThe following object has a mass of 5.2 kg. Determine the acceleration of the object.a.361505511049011 m/s2 [left]b.13 m/s2 [left]c.10 m/s2 [left]d.12 m/s2 [left]3947160254635The weight in the following diagram has a mass of 0.750 kg and the cart has a mass of 0.52 kg. There is a friction force of 2.1 N acting on the cart. What is the tension in the string?a.4.2 Nb.4.1 Nc.4.4 Nd.4.3 NThree sleds are tied together and pulled with a force of 150 N [E]. The mass of sled 1 is 13.0 kg, the mass of sled 2 is 10.0 kg, and the mass of sled 3 is 8.0 kg. Assume that the force of friction is negligible. What is the tension in rope A?2963545137795a.87 Nb.39 Nc.4.8 Nd.24 NWhich of the following forces balances gravity for falling objects?a.tensionb.electromagnetic forcec.air resistanced.strong forceA 69 kg person is standing on a bathroom scale (calibrated in newtons) in the middle of an elevator. Determine the reading on the scale when the elevator is moving downward at a constant rate of 2.2 m/s.a.520 Nb.480 Nc.680 Nd.720 N446659025400A 5.0 kg block is attached to a weight with a mass of 2.2 kg. The coefficient of kinetic friction between the block and the table is 0.10. What is the acceleration of the block? Assume that it starts slightly in motion.a.2.7 m/s2b.2.1 m/s2c.2.3 m/s2d.2.5 m/s2How much mechanical work is done on a brick wall if a man pushing with a 250 N force fails to move the wall?a.0 Jb.250 Jc.125 Jd.2.5 JTwo students sit in a sled and slide down a hill which gives them an initial horizontal velocity of 9.2 m/s. Their combined mass is 120 kg and the coefficient of friction between the sled and the snow is 0.23. How far will they slide horizontally before coming to a stop?a.21 mb.22 mc.19 md.20 mWhich of the following is an example of conduction?a.thermal energy transferred from an electric stove element to a metal potb.thermal energy transferred through a pot of boiling waterc.electromagnetic waves emitted from the Sund.ocean breezes resulting from the Sun’s rays striking land and heating the air immediately above the landAbout how much thermal energy is released by 722 g of water when it changes into a solid?a.2.50 104 Jb.2.45 104 Jc.2.45 105 Jd.3.41 105 JA wave has a speed of 2100 m/s and a frequency of 55 Hz. What is its approximate wavelength?a.38 mb.115 500 mc.2045 md.2155 mWhich of the following is an example of a transverse wave only?a.sound waves in fluidsb.wave produced by strumming the strings of a guitarc.wave motion in a slinkyd.waves produced by striking a piece of wood with a hammerTwo waves meet and form a wave with an amplitude less than one of the initial waves. Which statement must be true?a.The waves were in phase and constructive interference occurred.b.The waves were out of phase and constructive interference occurred.c.The waves were in phase and destructive interference occurred.d.The waves were out of phase and destructive interference occurred.The speed of a wave travelling along a 0.680 m guitar string is 208 m/s. What is the frequency of the fourth harmonic?a.1520 Hzb.872 Hzc.1224 Hzd.612 HzA clarinet has an air column length of 60.0 cm. The speed of a wave in the clarinet is 343 m/s. What is the frequency of the 6th harmonic?a.2150 Hzb.3140 Hzc.1570 Hzd.765 HzWhich of the following accurately describes the Doppler effect?a.As an object emitting a sound approaches an observer, the sound waves expand, so that the observer hears a higher frequency.b.As an object emitting a sound approaches an observer, the sound waves expand, which reduces their energy and dampens the noise.c.As an object emitting a sound approaches an observer, the sound waves become compressed, so that the observer hears a higher frequency.d.As an object emitting a sound approaches an observer, the sound waves become compressed, so that the observer hears a lower frequency.An instrument resembles an open air column of length 0.600 m. What is the difference in fundamental frequency when it is inside at 23 C and when it is outside at 12 C?a.6.12 Hzb.5.56 Hzc.5.89 Hzd.5.78 HzThe speed of sound in seawater is 1470 m/s. A dolphin sends out a click that reflects off of an object 150.0 m away. How long does it take from the initial click for the echo to return to the dolphin?a.0.102 s b.0.204 sc.0.306 sd.0.408 sHow much energy is required to run a 35 W light bulb for 4.0 min?a.840 Jb.1400 Jc.140 Jd.8400 JWhat is the current moving through a wire that has 0.60 C of electrons passing through a point in 1.5 min?a.0.67 Ab.0.0067 Ac.0.4 Ad.0.004 AIn the following circuit mA and mA. What is the current of ?330009517145a.34.0 mAb.66.1 mAc.24.0 mAd.16.1 mA4106545-271780For the following circuit the resistances are: , , . Calculate the total resistance for the circuit.a.b.c.d.44011856985In the following circuit , , and . How many coulombs of charge pass through the circuit in 12.0 s?a.1.96 Cb.1.81 Cc.1.49 Cd.1.64 CWhich rule should be applied for determining the direction of the magnetic field in a straight wire using electron flow?a.left-hand ruleb.right-hand rule for solenoidsc.left-hand rule for solenoidsd.right-hand ruleA wire is directed so that current measured by electron flow points into the page. What shape and direction are the magnetic field lines?a.The field lines form parallel lines and point into the page.b.The field lines form concentric circles and are oriented clockwise.c.The field lines form concentric circles and are oriented counterclockwise.d.The field lines form concentric circles and point into the page.A loop is oriented in the plane of the page and has current running through it such that the magnetic field produced in the middle of the loop points into the page. In what direction are the electrons flowing?a.into the pageb.out of the pagec.clockwised.counterclockwiseA magnetic field points toward the right while electrons in a wire flow into the page. In what direction is the force acting on the wire?a.upwardb.downwardc.rightd.445960564135leftFor the following DC motor, in what direction will the loop spin?a.The loop will spin counterclockwise.b.The loop will not spin.c.The loop will spin half way clockwise and then back counterclockwise.d.The loop will spin clockwise.5102225-83820For the following solenoid, in what direction will the magnetic field lines point when at a position to the right of the coil?a.leftb.downwardc.rightd.upward 461962516510Which of the following best describes how current will flow through the solenoid?a.Current will flow in the direction of the curl of your fingers on your left hand when your thumb points to the left.b.Current will flow in the direction of the curl of your fingers on your right hand when your thumb points to the left. c.No current will flow for the above solenoid.d.Current will flow in the direction of the curl of your fingers on your left hand when your thumb points to the right.The voltage of a transformer changes from 180 V to 120 V from the primary to secondary circuits. If the current in the primary circuit is 5.0 A, what is the current in the secondary circuit?a.10 Ab.7.5 Ac.3.3 Ad.5 AShort Answer:Study the position-time graph pictured below and answer the questions that follow.(a)What is the object's final displacement?223901055880(b)What is the object's average velocity during the interval from t = 3.0 s to t = 7.0 s?(c)What is the object's velocity during the time its motion is uniform?(d)What is the object's average speed during the entire interval?(e)What is the object's average velocity during the entire interval?(f)What is the object's instantaneous velocity at t = 1.5 s?3801110507365(g)What is the length of time during which the object does not move at all?Sketchthe resultant wave form when the following two pulses meet. (Assume the meeting point corresponds to the centre of each pulse.)A football player makes the opening kickoff and kicks the football with an initial velocity of 28?m/s at an angle of 40 above horizontal. Determine the range of the football.A sprinter who is competing in a 100-m race accelerates from rest to a top speed of 10.0 m/s over a distance of 15 m. The remainder of the race is run at a constant speed.(a)What length of time is required for the sprinter to reach top speed?(b)What is the sprinter's acceleration?(c)What is the sprinter's time for the entire race?A pilot leaves the runway, in his airplane, with a velocity of 265 km/h [N 55°W]. If the velocity of the wind is 50 km/h [E 25o N], what would be the velocity of the plane relative to the ground?31963065080Two toy wagons are tied together by ropes, as shown in the given Figure. Rope B is being pulled with a force of25 N. The mass of wagon 1 is 4.3 kg, and the mass of wagon 2 is 5.5 kg. The coefficient of kinetic between theWagons and the floor is 0.15.(a) What is the acceleration of both of the wagons?3854450109855(b) Calculate the tension in each rope.A family uses several planks to slide a 350-kg piano onto the back of a pickup truck in the given figure. The box on the back of the truck is 81 cm above the ground and the planks are 3.0 m long. An average force of magnitude 1500 N is required to slide the piano up the planks.Determine the work done in loading the piano.How much useful work was done?Calculate the efficiency of the planks as a simple machine to load the piano. 2623185696595Examine the given circuit and find all of the missing circuit parameters. Draw diagrams for the simplified circuits and show your calculations. Use the given chart to record your answers. V (v)I (A)R (Ω)R1R2R3R4R5RTAn ambulance has just passed by your home. You detect that the frequency of the ambulance siren is 900.0 Hz. It is known that the frequency of the ambulance’s siren is 850.0 Hz and the speed of sound in this scenario is 337 m/s. In what direction the ambulance is moving and what is its speed in km/h?A 200-g piece of iron at 350°C is submerged in 300 g of water at 10°C to be cooled quickly. Determine the final temperature of the iron and the water. (cwater = 4.18 ? 103 J/kg·?C, ciron = 4.5 ? 102 J/kg·?C)A door chime designed to operate at 8.0 V is connected to a 120-V power supply through a transformer. In the secondary coil the number of windings is 100 and the current is 1.8 A. Find(a) the number of windings in the primary coil(b) the current in the primary coilMULTIPLE CHOICEAnswer:1.ANS:D2.ANS:A3.ANS:B4.ANS:C5.ANS:D6.ANS:D7.ANS:C8.ANS:A9.ANS:A10.ANS:B11.ANS:C12.ANS:C13.ANS:B14.ANS:A15.ANS:C16.ANS:A17.ANS:C18.ANS:A19.ANS:B20.ANS:D21.ANS:D22.ANS:C23.ANS:C24.ANS:B25.ANS:B26.ANS:D27.ANS:B28.ANS:A29.ANS:D30.ANS:B31.ANS:A32.ANS:C33.ANS:D34.ANS:A35.ANS:D36.ANS:B37.ANS:A38.ANS:B ................
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