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PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 CODE PAGE 1 *Read the following (31) questions and choose the right answer: 1 The figure below represents the speed-time graph for the motion of a vehicle during a 7.0-minute trip. How many times the vehicle had decelerated? A B 2 C D 4 5 Which best describes why projectiles move in a curved path? A B C D 3 3 2 They have constant horizontal velocity and vertical acceleration. They have horizontal acceleration and constant vertical velocity. They have horizontal and vertical accelerations. They have constant horizontal velocity and constant vertical velocity. You push yourself on a skateboard with a force of 30 N east and accelerate at 0.5 m/s2 east. What is the mass of the skateboard if your mass is 58 kg? A B 2.0 kg 60 kg C D 15 kg 4.0 kg PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 4 Which of the following is true about an object in free fall? A B C D 5 B B C D 9,600 N 9,600,000 N 3.8 0.3 C D 30% 50% The gravitational potential energy of an apple-Earth system changes when which factor changes? A B 8 6,000 N 6N A crate weighs 950 N. If you can use a pulley system to lift that crate with a force of only 250 N, then what is the mechanical advantage of the pulley system? A 7 It pulls on Earth, and Earth pulls on it. Its acceleration depends on its mass. It has no inertia. Its momentum is constant. The brakes on a car do 240 kJ of work in stopping the car. If the car travels a distance of 40 m while the brakes are being applied, how large is the average force that the brakes exert on the car? A 6 CODE PAGE 2 The apple’s mass The apple’s speed C D The apple’s temperature The apple’s size Which uses Bernoulli’s principle? A B Hose-end sprayer Piston C D Skateboard Buoyancy PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 9 CODE PAGE 3 Which atomic model is represented in the figure below? A B Thomson Model Bohr Model C D Democritus Model Electron Cloud Model 10 Which of the following is an example of a polar molecule? A B CHCl3 CCl4 C D Cl2 BeCl2 11 Which atom(s) in the methane molecule (CH4) has a partial negative charge (-δ δ)? A B Carbon atom. Hydrogen atoms. C D All of them. None of them. 12 Suppose the ratio of parent-to-daughter isotopes in an igneous rock is 1:3. The half life of the parent isotope is 1.3 billion years. How old is the rock sample? A B 2.6 billion years. 1.3 billion years. C D 3.9 billion years. 5.2 billion years. 13 Which geologic principle is described by the phrase “ the present is the key to the past”? A B Uniformitarianism Original horizontality C D Unconformities. Faunal succession. PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 CODE PAGE 4 14 Which of the following geologic time units is longest? A B Eon Era C D Period Epoch 15 An aquifer is known to be 200 km long and 75 km wide. If its average saturated thickness is 40 m and it has an average porosity of 3 percent, estimate how many cubic kilometers of water could potentially be stored in the aquifer. A B 18 km3 600 km3 C D 1800 km3 1.8 km3 16 A rock unit that can transfer water through its pore spaces is called A B an aquifer. an aquitard. C D a water table. a glacier. 17 Which of the following erosional agents causes the formation of a landform called Arête? A B Glaciers. Ocean waves. C D Rivers. Wind 18 Which of the following is a depositional landform of wind? A B Loess. Outwash plain. C D Blowouts Desert pavement 19 Which of the following statements is correct? A B C D An increase in surface area of a rock increases its weathering rate. Frost wedging occurs when water collects in the cracks of a rock and then evaporates. Rocks in flat, low lying areas are more susceptible to weathering than rocks on steep slopes. Weathering rate does not depend on the rock type. PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 CODE PAGE 5 20 An important chemical reaction called_________occurs when feldspar reacts with water to form the clay mineral kaolinite which helps soil store water and absorb nutrients. A B hydrolysis oxidation C D carbonation hydration 21 Which is a mixture of weathered rock, organic matter, water, and air? A B Soil Feldspar C D Rock rust Parent material 22 Which of the following is an evidence that was used by Wegner to support his continental drift hypothesis? A B C D Correlation of fossils among the continents. Matching magnetic polarities. Seafloor spreading at mid-ocean ridge. Comparing the ages of continental rocks with those of oceanic rocks. 23 Suppose that the arrows in the figure below represent patterns of convection in Earth’s mantle. Which type of plate boundary is most likely to occur along the region labeled “A”? A B Divergent plate boundary Convergent plate boundary C D Transform plate boundary Reverse plate boundary PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 CODE PAGE 6 24 Which feature forms when two plates of equal densities collide? A B High range of folded mountains. Subduction zone. C D Mid-ocean ridge. Rift valley. 25 If S-waves lag behind P-waves by 2.0 minutes for every 1,000 km of distance from the earthquake epicenter, how far away from the earthquake epicenter is a seismograph that measures a lag time of 6.0 minutes? A B 3000 km 6000 km C D 2000 km 8000 km 26 Seismic waves from a magnitude-8 earthquake on Richter scale are _______ times larger in amplitude than those from a magnitude-4 earthquake. A B 10,000 1000 C D 40 4 27 What kind of seismic waves are shown in the figure below? A B C D Primary waves (P-waves) Secondary waves (S-waves) Surface waves that move like ocean waves. Surface waves that move like horizontal S-waves. 28 Areas on Earth’s surface where no seismic waves are recorded are called A B Shadow zones Discontinuities C D Plate boundaries. Hot spots. PYP 001 TERM 151 FINAL EXAM TUESDAY, DECEMBER 29, 2015 29 In which state of matter the Earth’s outercore exist? A B Liquid Rigid solid C D Plastic-like solid Plasma 30 Which of the following best describes shield volcanoes? A B C D Broad, flat structures composed of layer upon layer of lava flows. Small in size and have short eruption cycles. Large and steep-sided and composed of layers of both lava and ash. None of these. 31 Which of the following statements is correct? A B C D None of these. Mafic magmas have high viscosity. Magmas with low viscosity are rich in silica. Volcanoes erupt a variety of gases, but carbon dioxide is released more than any other gas. CODE PAGE 7