Coach and Kilowatt Ours Post FCAT Exam

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1 Coach and Kilowatt Ours Post FCAT Exam Multiple Choice: Identify the choice that best completes the statement or answers the question. 1 Why is it important to include units when making measurements? A Units provide information about the type of measurement. B Without units, it is impossible to tell the quantity being measured. C Units help describe the size of the quantity being measured. D All of the above 2 One of these is NOT a unit of distance. Which one? F Mile G Inch H Newton I Meter 3 Which measurement is largest? A 4,000,000 millimeters B 180,000 centimeters C 3,000 meters D 1.2 kilometers seconds is equal to: F 1 hour, 26 minutes, 40 seconds G 5 hours, 3 minutes, 20 seconds H 11 hours, 56 minutes, 40 seconds I 86 hours, 6 minutes, 6 seconds 5 A kilogram represents a unit of: A volume. B mass. C time. D weight. 6 The space that an object takes up is known as its: F density. G volume. H weight. I mass. 7 Which of the following has a mass of approximately one gram? A A 1-liter bottle of soda B A paper clip C One grain of salt D One grain of rice 8 Which is true of a kilogram of feathers and a kilogram of bricks? F They have the same mass. G They have the same volume. H The bricks are less dense. I The feathers are more dense. 9 When determining the mass of your friend, Kellie, the best units to use would be: A grams. B centimeters. C kilograms. D liters. 10 The density of a liquid is higher than the density of a gas because: F liquids take up more space than gases. G particles of a liquid are closer together than particles of a gas. H particles of a gas are closer together than particles of a liquid. I particles of a solid are closer together than particles of a liquid. 11 A rock displaces 50 ml of water. The density of the rock is 2.5 g/cm 3. What is the mass of the rock? A 0.05 g B 20 g C 52.5 g D 125 g 12 Material Density Wood 0.9 g/cm 3 Glass 2.3 g/cm 3 Aluminum 2.7 g/cm 3 Iron 7.8 g/cm 3 A block has a mass of 23 grams and a volume of 10 cm 3. Using the table above, what material is the block made of? F Wood G Glass H Aluminum I Iron

2 Figure 2-1A 13 The mass vs. speed graph in Figure 2-1A shows a(n): A direct relationship. B inverse relationship. C variable relationship. D None of the above 14 What is the dependent variable for the speed vs. mass graph in Figure 2-1A? F Time G Mass H Speed I All of the above 15 Speed is: A calculated by dividing the distance traveled by the time taken. B zero for objects at rest. C a measure of how quickly an object gets from one place to another. D All of the above 16 Speed that does not change is called: F average speed. G constant speed. H instant speed. I minimum speed. 17 From home, you walk 6 blocks east and then walk 4 blocks west. Your distance from home is: A 2 blocks. B 4 blocks. C 6 blocks. D 10 blocks. 18 What is the speed of a jet plane that travels 3,000 meters in 10 seconds? F 30 m/s G 300 m/s H 3,000 m/s I 30,000 m/s 19 On this graph, the dependent variable is: A distance. B speed. C acceleration. D the slope of the speed vs. distance curve. Selina drops a golf ball down a deep well. The ball falls with only the force of gravity acting on it. Figure 4-2A

3 20 Without any air resistance, as the golf ball in Figure 4-2A falls into the well, its acceleration is: F constant. G increasing. H decreasing. I changing. 21 Weight is a force that depends on mass and: A friction. B gravity. C magnetism. D energy conservation. 22 What is the mass of a rock that weighs 49 newtons? F 1 kilogram G 2 kilograms H 5 kilograms I 10 kilograms 23 Compared to your weight and mass on Earth, if you were on the moon: A your weight and mass would be less. B your weight would be less but your mass would remain the same. C your weight would remain the same, but your mass would be less. D your weight would increase, but your mass would remain the same. 24 A student attempts to slide a block down a smooth, dry ramp as shown, but the block does not move. The most likely explanation is that: F the ramp is not steep enough for gravity to have any effect. G there are no forces between the block and ramp. H the sliding friction between the block and the ramp is lower than the force of gravity pulling the box down the ramp. I the static friction between the block and the ramp is greater than the force of gravity pulling the box down the ramp. 25 When the forces on an object are balanced, we say that the object: A is in equilibrium. B is accelerating. C must be at rest. D must be moving at a constant speed. 26 The diagram below is a free-body diagram picturing a cyclist moving along a highway. 4 forces, represented by arrows A, B, C, and D are acting on the cyclist as she pedals. 27 The arrow that would best represent the normal force is: F A G B H C I D

4 The picture shows all the forces acting on a windsurfer. If the forces are balanced and the windsurfer is traveling at constant velocity, what is the value of force F? A 100 N B 200 N C 1,000 N D 2,100 N 28 Changes in motion come from: F unbalanced forces. G balanced forces. H mass. I inertia. 29 The equation that correctly expresses Newton s second law is: A force = mass acceleration. B force = mass acceleration. C force = mass + acceleration. D force = mass - acceleration. In the graph below, the acceleration of an object is plotted against the net force applied to the object. Figure 6-2A 30 The mass of the object being accelerated in Figure 6-2A is: F 0.2 kg G 0.5 kg H 1 kg I 2 kg 31 Different forces were applied to each of two blocks, A and B. The graphs below show the relationship between the force and the acceleration for each block. How does the mass of block A compare to the mass of block B? A the same. B twice as great. C half as great. D four times as great. 32 What is the momentum of a 0.15-kilogram baseball moving at 20 m/s? F 1.5 kg m/s G 3 kg m/s H 15 kg m/s I 30 kg m/s 33 A boy and the skateboard on which he is standing have a combined mass of 60 kilograms. He throws a 1-kilogram rock forward at 20 m/s. At what speed will the boy roll backward? A 0.33 m/s B 3.0 m/s C 30 m/s D 1,200 m/s 34 You stand on a skateboard and push off the ground with one of your feet. The reason that the skateboard moves forward is that the force you apply to the skateboard: F equals the force applied to you by the skateboard. G is larger than the force applied by you to the skateboard H equals the force applied by the ground to the skateboard. I is larger than the force applied by the ground to the skateboard.

5 35 How high would you need to lift a 2-kg bottle of soda to increase its potential energy by 500 joules? A 0 m B 25 m C 250 m D 1000 m 36 Which type of energy does a stretched spring contain? F Radiant energy G Electrical energy H Chemical energy I Elastic energy 37 The brakes on an automobile become hot when they are used continuously because: A kinetic energy is being converted to thermal energy. B potential energy is being converted to thermal energy. C the friction of the brakes causes an increase in kinetic energy.. D the friction of the brakes causes an increase in potential energy. 38 The phase of matter most likely to be present at absolute zero would be: F plasma. G gas. H liquid. I solid. 39 List the phases of water in order, from the phase with the slowest molecular movement to the phase with the fastest molecular movement. A Gas-Liquid-Solid B Liquid-Solid-Gas C Solid-Liquid-Gas D Gas-Solid-Liquid 40 A contracted cloud of gas in a nebula will most likely form into which of the following? F asteroids G a cluster of stars H a galaxy I vaporized elements 41 How have scientists gathered most of the information we know about the other planets in our solar system and their moons? A from astronauts traveling through space B from data gathered by satellite probes C from high-powered radar waves sent into space D from the use of high-powered telescopes 42 All of the following are units used to measure density EXCEPT: F g/cm 3 G g/ml H kg/m 3 I kg/n 43 A measure of how much pulling, or tension, a material can withstand before breaking is: A hardness. B brittleness. C tensile strength. D malleability. 44 The volume of a 67.2-gram sample of platinum with a density of 21.5 g/cm 3 is: F cm 3 G 3.13 cm 3 H 45.7 cm 3 I 1,440 cm 3 In a hydraulic lift, a small cylinder is connected to a large cylinder. A 250-newton force is applied to the square meter area of the small cylinder. Answer the following questions based on this information. 45 Compared to the pressure on the smaller cylinder, the pressure on the larger cylinder: A is smaller. B is larger. C is the same. D cannot be calculated from the information given. 46 How many energy levels are filled in a krypton atom? F 3 G 4 H 5 I 6 47 The most abundant element in Earth s crust is: A oxygen. B silicon. C carbon. D nitrogen. 48 The noble gases, such as helium and xenon, are non-reactive because: F they have completely filled outer electron shells. G they are chemically unstable. H they are unusually large atoms. I they have been around longest on Earth.

6 49 Christine has brown hair and green eyes. Which of the following represents the phenotype for her hair color? A Bb B BB C bb D brown 50 Lulu learned in her biology class that brown eyes are the dominant eye color for humans. She made this Punnett square to find the genetic probability for her blue eyes. What is the probability for blue eyes? F 25% G 50% H 60% I 75% 51 Which process has been used for thousands of years to improve the quality of plants, aiming to produce those with only the most desired traits? A genetic engineering B gene transfer C selective breeding D quality breeding 52 Which is the term for an adaptation that allows an organism s physical features such as skin or fur color to blend into its surroundings? F camouflage G environmental adaptation H evolution I natural selection Figure 23-1A 53 Which of the graphs in Figure 23-1A has a period of two seconds? A Graph A B Graph B C Graph C D Graphs B and C 54 A decibel is a unit used to measure the: F pitch of sound. G color or complexity of sound. H loudness of sound. I frequency of a sound. 55 Which of the following sounds has the shortest wavelength? A The rumble of thunder at 75 hertz B A bass guitar at 150 hertz C A male voice at 500 hertz D A female soprano singer at 2,000 hertz 56 Which of the following statements is NOT TRUE of the speed of sound waves? F Sound waves travel faster in metal than in air. G The speed of sound in air is about 343 meters per second. H Sound waves are slower than light waves. I Sound waves travel faster in outer space than in air. 57 How are gravity and friction alike? A Both act at a distance. B Both require physical contact to exert their force. C Both decrease in strength as distance between objects increase. D Both can change the motion of objects.

7 58 How does entropy in the universe change over time? F increases G decreases H stays the same I none of the above (entropy cannot be measured) 59 Some kinds of Staphylococcus aureus bacteria are resistant to antibiotics. According to the theory of natural selection, what is their resistance an example of? A extinction B asexual reporduction C mutation D adaptation 60 Plant cells differ from animal cells in certain ways. What structures do plant cells have that animal cells do not have? F cell wall and chloroplasts G chloroplasts and nucleus H cell wall and nucleus I cell membrane and chloroplasts 61 50% of America s electricity is generated from. In the Southeast, the average is 61%. A solar power B hydroelectric power C nuclear power D coal power 62 In the US 45 of 50 states post statewide advisories warning that fish are unsafe to eat. F mercury G lead H coal I arsenic 63 In the Southeast, 1 kilowatt-hour of electricity requires approximately of coal. A 10 kg B 1 lb C 2 lbs D 2 kg 64 Compact fluorescent light bulbs use as much electricity as a 100-watt incandescent bulb and last years longer too. F 20 % G 15% H 25% I 30% 65 Recycling one aluminum can saves enough energy to power a television for hours. A 2 B 1 C 3 D 4 66 What is the primary way the sun s energy transfers from the Sun to Earth? F conduction G convection H radiation I tranmission 67 If the frequency of a wave is 480 hertz (cycles per sec.) How many waves will pass a given point in 4 seconds? A 1,920 B 120 C 960 D 3, Potholes in roads often develop during the winter. What is this a result of? F chemical weathering G mechanical weathering H wind erosion I gravity erosion 69 Which process is most responsible for forming metamorphic rock? A cementation and crystallization of sediments B melting and colong of magma C application of intense heat and pressure D weathering and erosion 70 Which of these organisms reproduces sexually? F virus G amoeba H bacterium I daffodil

8 Coach Kilowatt Ours Post FCAT Exam Answer Section MULTIPLE CHOICE 1 ANS: D PTS: 1 DIF: basic REF: section 1.1 STA: LA ANS: H PTS: 1 DIF: basic REF: section 1.2 STA: SC.912.N ANS: A PTS: 1 DIF: intermediate REF: section 1.3 STA: SC.912.N ANS: F PTS: 1 DIF: advanced REF: section ANS: B PTS: 1 DIF: basic REF: section ANS: G PTS: 1 DIF: basic REF: section ANS: B PTS: 1 DIF: intermediate REF: section 2.1 STA: SC.912.N ANS: F PTS: 1 DIF: intermediate REF: section ANS: C PTS: 1 DIF: intermediate REF: section ANS: G PTS: 1 DIF: intermediate REF: section ANS: D PTS: 1 DIF: intermediate REF: section 2.2 STA: SC.912.P ANS: G PTS: 1 DIF: intermediate REF: section ANS: B PTS: 1 DIF: intermediate REF: section 2.3 STA: SC.912.N ANS: H PTS: 1 DIF: intermediate REF: section ANS: D PTS: 1 DIF: basic REF: section ANS: G PTS: 1 DIF: basic REF: section ANS: A PTS: 1 DIF: intermediate REF: section ANS: G PTS: 1 DIF: intermediate REF: section ANS: B PTS: 1 DIF: basic REF: section 4.2 STA: SC.912.N ANS: F PTS: 1 DIF: basic REF: section ANS: B PTS: 1 DIF: basic REF: section 5.1

9 22 ANS: H PTS: 1 DIF: intermediate REF: section ANS: B PTS: 1 DIF: intermediate REF: section ANS: I PTS: 1 DIF: advanced REF: section 5.2 section ANS: A PTS: 1 DIF: basic REF: section ANS: I PTS: 1 DIF: intermediate REF: section ANS: A PTS: 1 DIF: advanced REF: section ANS: F PTS: 1 DIF: basic REF: section ANS: B PTS: 1 DIF: basic REF: section ANS: I PTS: 1 DIF: advanced REF: section ANS: C PTS: 1 DIF: advanced REF: section ANS: G PTS: 1 DIF: intermediate REF: section ANS: A PTS: 1 DIF: intermediate REF: section ANS: I PTS: 1 DIF: advanced REF: section ANS: B PTS: 1 DIF: intermediate REF: section 7.1 STA: SC.912.P ANS: I PTS: 1 DIF: intermediate REF: section 7.1 STA: SC.912.P ANS: A PTS: 1 DIF: intermediate REF: section 7.2 STA: SC.912.P ANS: I PTS: 1 DIF: basic REF: section 10.3 STA: SC.912.P ANS: C PTS: 1 DIF: intermediate REF: section 10.3 STA: SC.912.P ANS: G PTS: 1 DIF: Webb's I STA: SC.E ANS: B PTS: 1 DIF: Webb's II STA: SC.E ANS: I PTS: 1 DIF: basic REF: section 12.1 STA: SC.912.P ANS: C PTS: 1 DIF: basic REF: section 12.1 STA: SC.912.P ANS: G PTS: 1 DIF: intermediate REF: section 12.1 STA: SC.912.P ANS: C PTS: 1 DIF: basic REF: section 12.2 STA: SC.912.P ANS: G PTS: 1 DIF: intermediate REF: section 15.1 STA: SC.912.P.8.5

10 47 ANS: A PTS: 1 DIF: basic REF: section 15.2 STA: SC.912.P ANS: F PTS: 1 DIF: intermediate REF: section 15.2 STA: SC.912.P ANS: D PTS: 1 DIF: Webb's II 50 ANS: G PTS: 1 DIF: Webb's II STA: SC.F ANS: C PTS: 1 DIF: Webb's I STA: SC.F ANS: F PTS: 1 DIF: Webb's I STA: SC.F SC.G ANS: C PTS: 1 DIF: intermediate REF: section ANS: H PTS: 1 DIF: basic REF: section ANS: D PTS: 1 DIF: intermediate REF: section ANS: I PTS: 1 DIF: intermediate REF: section ANS: D PTS: 1 58 ANS: F PTS: 1 59 ANS: D PTS: 1 60 ANS: F PTS: 1 61 ANS: D PTS: 1 62 ANS: F PTS: 1 63 ANS: B PTS: 1 64 ANS: F PTS: 1 65 ANS: C PTS: 1 66 ANS: H PTS: 1 67 ANS: A PTS: 1 68 ANS: G PTS: 1 69 ANS: C PTS: 1 70 ANS: I PTS: 1