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Ludus For Operation: KWA Science Grade 10 - B Ver 2010JAN11 Barnacle Bill Originator Prepared for Learners in Adams County School District 50 to achieve proficient or advanced on all assessments related to Mathematics topics contained herein. Use Permissions Contact: [email protected] Not for sale or publishing. Classroom use only. Barnacle Bill Synthesizer Science Content Questions Topics 1-10 Biological Evolution 11-20 Earth’s Composition, Processes, & History 21-30 Atmosphere & Weather 31-40 Earth’s Water 41-50 Solar System & the Universe 51-60 Scientific Thinking 61-70 Grab Bag Science Grade 10 2 3 4 5 6 7 Directions: Click on the yellow numbered buttons to select a question. They are active. 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 Question 1 A number is divisible by another number when the quotient is a whole number and the remainder is _____. a. 10 b. 5 c. 4 d. 3 e. 2 f. 1 g. 0 Answer Answer 1 g. 0 A number is divisible by another number when the quotient is a whole number and the remainder is 0. Category 4Return Question 2 Which of the following numbers is a perfect square? Why? a. 5 b. 10 c. 25 d. 50 Answer Answer 2 c. 25 5 x 5 = 25 A number x itself forms a perfect square. Category 4Return Question 3 Select the ratio from the answers below _____. a. 34 out of 100 b. 34:100 c. 34/100 d. All of the above e. None of the above Answer Answer 3 d. All of the above 34 out of 100, 34:100, and 34/100 Category 4Return Question 4 The comparison of two quantities with different types of units is called a _____. For example: $5 for 2 lbs of cherries Answer Answer 4 The comparison of two quantities with different types of units is called a rate. For example: $5 for 2 lbs of cherries Category 4Return Question 5 To simplify the expression (5x7)(x6), you would apply the _____ rule. a. Power of a Power (am)n = amn b. Product of Powers aman = am+n c. Quotient of Powers am/an = am-n d. Power of a Quotient (a/b)m= am/bm e. Zero Exponent a0 = 1 f. Negative Exponent a-n = 1/an Answer Answer 5 To simplify the expression (5x7)(x6), you would apply the _____ rule. b. Product of Powers aman = am+n 5 x(7+6) = 5x13 Category 4Return Question 6 Select the standard form numbers from below. a. 6,345 b. 6.345 x 103 c. 6.345 x 10 x 10 x 10 d. 0.006345 e. 6.345 x 10-3 f. 6.345 x 10-1 x 10-1 x 10-1 Answer Answer 6 Select the standard form numbers from below. a. 6,345 d. 0.006345 Category 4Return Question 7 A rectangular arrow of variables or constants in horizontal rows and vertical columns, usually enclosed in brackets is called a(n) _____. a. element b. dimension c. array d. matrix Answer Answer 7 d. matrix Category 4Return Question 8 A quadratic function can be written in the form (standard form) _____. a. y = ax b. y = ax2 + bx + c c. y = bx + c Answer Answer 8 b. y = ax2 + bx + c Category 4Return Question 9 If an integer is divisible by 6 and by 9, then the integer must be divisible by which of the following? I. 12 II.18 III.26 a. b. c. d. e. I only II only I and II only I, II, and III None Answer Answer 9 b. II only Category 4Return Question 10 When 4/11 is written as a decimal, what is the 100th digit after the decimal point? f. 3 g. 4 h. 5 j. 6 k. 7 Answer Answer 10 j. 6 Category 4Return Question 11 How do you know 42 is divisible by 6? I can apply the Divisibility Rule: a. The sum of the digits is divisible by 6. b. The last two digits form a number divisible by 6. c. The number is divisible by both 2 and 3. d. The sum of the digits is divisible by 6. Answer Answer 11 c. The number is divisible by both 2 and 3 42 is divisible by both 2 and 3. Divisibility Rule for 6 Category Return Question 12 Which of the following numbers is a perfect square? Why? a. 20 b. 50 c. 100 d. 150 Answer Answer 12 c. 100 10 x 10 = 100 A number x itself forms a perfect square. Category Return Question 13 A _____ is a comparison of two numbers by division. Answer Level 9 Answer 13 A ratio is a comparison of two numbers by division. Category Return Question 14 Express each rate as a unit rate. $50 for 4 days of work 3 feet of snow in 5 hours Answer Answer 14 $50 for 4 days of work Divide the both the numerator & denominator by 4. $50/4d = $12.50/1d 3 feet of snow in 5 hours Divide the both the numerator & denominator by 5 3ft/5h = 0.6ft/1h Category Return Question 15 Simplify. (ab4)(ab2) (p5q4)(p2q) (-7c3)(4c) Answer Answer 15 Simplify. (ab4)(ab2) (p5q4)(p2q) (-7c3)(4c) a(1+1)b(4+2) p(5+2)q(4+1) (-7.4)c(3+1) a2b6 p7q5 -28c4 Category Return Question 16 Select the factor form numbers from below. a. 6,345 b. 6.345 x 103 c. 6.345 x 10 x 10 x 10 d. 0.006345 e. 6.345 x 10-3 f. 6.345 x 10-1 x 10-1 x 10-1 Answer Answer 16 Select the standard form numbers from below. c. 6.345 x 10 x 10 x 10 f. 6.345 x 10-1 x 10-1 x 10-1 Category Return Question 17 A value in a matrix is called a(n) a. array b. element c. dimension d. equality Answer Answer 17 elements elements Category Return Question 18 An exponential function can be written in the form (standard form) _____. a. y = ax b. y = ax2 + bx + c c. y = bx + c Answer Answer 18 a. y = ax Category Return Question 19 8 1/3 ÷ 6 2/3 = ? a. b. c. d. e. 1 ¼ 1 2/3 2 ½ 2 2/3 55 4/9 Answer Answer 19 a. 1 ¼ Category Return Question 20 For how many integer values of x will 7/x be greater than ¼ and less than 1/3? f. 6 g. 7 h. 12 j. 28 k. infinitely many Answer Answer 20 g. 7 Category Return Question 21 How do you know 2,324 is divisible by 4? I can apply the Divisibility Rule: a. the sum of the digits is divisible by 4. b. The last two digits form a number divisible by 4. c. The number is divisible by both 2 and 3. d. The sum of the digits is divisible by 4. Answer Answer 21 d. The last two digits form a number divisible by 4. Divisibility Rule for 4 Category Return Question 22 Which of the following numbers is a perfect square? Why? a. 121 b. 144 c. 169 d. 196 Answer Answer 22 a, b, c, and d are all perfect squares. 11 x 11 = 121 12 x 12 = 144 13 x 13 = 169 14 x 14 = 196 Category Return Question 23 When a ratio compares a number to 100, it can be written as a _____. Answer Answer 23 percent Category Return Question 24 For the 2000 census, the population of Texas was about 20,900,000 and the population of Illinois was about 12,500,000. There were 30 members of the U.S. House of Representatives from Texas and 19 from Illinois. In which state did a member represent more people? Answer Answer 24 Texas: 20,900,000 people ≈ 700,000 people 30 representatives 1 representative Divide numerator & denominator by 30. Illinois: 12,500,000 people ≈ 660,000 people 19 representatives 1 representative Divide the numerator & denominator by 19. Category Return Question 25 Express the area of the figure as a monomial. a2b a2b Answer Answer 25 Express the area of the figure as a monomial. a2b = s a2b = s Area = side . side A = s . s A = a2b . a2b A = a(2+2)b(1+1) A = a4b2 Category Return Question 26 Select the scientific notation numbers from below. a. 12,322 b. 8.423 x 107 c. 6.3457 x 10 x 10 x 10 x 10 d. 0.000006345 e. 3.895 x 10-8 f. 2.345 x 10-1 x 10-1 x 10-1 Answer Answer 26 Select the scientific notation numbers from below. b. 8.423 x 107 e. 3.895 x 10-8 Category Return Question 27 State the dimensions of the matrix below. Answer Answer 27 2 x 3 2 rows and 3 columns Category Return Question 28 The y-intercept for the exponential function graphed below is _____. Answer Answer 28 y = 1 Category Return Question 29 In a group of 25 students, 16 are female. What percentage of the group are female? a. 16% b. 40% c. 60% d. 64% e. 75% Answer Answer 29 d. 64% Category Return Question 30 An advantage of sexual reproduction over asexual reproduction is that it allows _____. a. protection for the offspring. b. more offspring to be produced. c. more genetic variation among the offspring. d. all of the above. e. none of the above. Answer Answer 30 c. more genetic variation among the offspring. Category Return Question 31 How do you know 567 is divisible by 9? I can apply the Divisibility Rule: a. The sum of the digits is divisible by 3. b. The last two digits form a number divisible by 9. c. The number is divisible by both 2 and 3. d. The sum of the digits is divisible by 9. Answer Answer 31 d. The sum of the digits is divisible by 9. Divisibility Rule for 9 Category Return Question 32 Determine the square root of 225 (√225). a. 14 b.15 c. 16 d. 17 Answer Answer 32 b. 15 √225 = 15 15 x 15 = 225 In this case multiplying the square roots together for the perfect square 225. Category Return Question 33 If Juan answered 8 out of 10 questions correctly, which diagram represents this ratio? B A C Answer Answer 33 B Category Return Question 34 You have a Trail Mix Recipe for six people. This recipe requires you to combine 3 cups of raisins with 6 cups of peanuts. But only you and your significant other will be going on the hike in El Dorado Canyon. How do you modify the recipe for only two people? Answer Answer 34 6 people Raisins 2 people Divide the 6 people by 3 and divide the recipe proportions by 3. Peanuts 1 cup of raisons & 2 cups of peanuts for 2 people. Raisins Peanuts Category Return Question 35 Simplify each expression. x0y 4 y2 2x3y2z5 10xy3z4 Answer Answer 35 Simplify each expression. x 0y4 y2 2x3y2z5 10xy3z4 y(4-2) 0.2x(3-1)y(2-3)z(5-4) y2 0.2x2y-1z1 Category Return Question 36 Show that 2.35 x 10-5 < 1 and 2.35 x 103 > 1 by creating a table. Answer Answer 36 Show that 2.35 x 10-5 < 1 and 2.35 x 103 > 1. Scientific Factor Form Standard Notation Form 2.35 x 10-5 2.35 x 10-1 x 10-1 x 10-1 x 10-1 x 10-1 0.0000235< 1 2.35 x 103 10-1 = 1/10 = 0.1 2.35 x 101 x 101 x 101 2350 > 1 Category Return Question 37 Two matrices are considered _____ when they have the same dimensions and if each element of one matrix is equal to the corresponding element of the other matrix. a. square matrices b. zero matrices c. row matrices d. column matrices e. equal matrices Answer Answer 37 e. equal matrices Category Return Question 38 Select the graph representing a growth curve. Answer Answer 38 Category Return Question 39 At the end of the season, a team’s ratio of wins to losses was 3:5. If there were no ties, what percentage of its games did the team win? f. 33 1/3% g. 37 ½% h. 40% j. 60% k. 62 ½% Answer Answer 39 g. 37 ½% Category Return Question 40 What is the greatest of the numbers 132, 361, 36, 312, and 123? a. 132 b. 361 c. 36 d. 312 e. 123 Answer Answer 40 d. 312 Category Return Question 41 How do you know 525 is divisible by 5? I can apply the Divisibility Rule: a. The sum of the digits is divisible by 5. b. The last digit is a number divisible by 5. c. The number is divisible by both 2 and 5. d. The sum of the last two digits is divisible by 5. Answer Answer 41 b. The last digit is a number divisible by 5. Divisibility Rule for 5 Category Return Question 42 √625 = ? a. 15 b.20 c. 25 d. 30 Answer Answer 42 c. 25 √625 = 25 25 x 25 = 625 Category Return Question 43 Complete the ratios for the diagram below. (Yellow & Total) Which answer is the fraction format? ___ out of ___ ____ : ____ ____ / ____ Answer Answer 43 31 out of 88 31:88 31/88 fraction format Category Return Question 44 Express each ratio in simplest form: 14 chosen out of 70 who applied 28 out of 100 doctors (and then convert to percent) 153 points in 18 games Answer Answer 44 Express each ratio in simplest form: 14 chosen out of 70 who applied 1 chosen out of 5 applicants 1 chosen / 5 applicants 1 chosen : 5 applicants 28 out of 100 doctors (and then convert to percent 7 out of 25 doctors 7/25 doctors 7 : 25 doctors 153 points in 18 games 17 points in 2 games 17 points/2 games 17 points : 2 games Category Return Question 45 Old Technology – The first transatlantic cable has 51 amplifiers along its length. Each amplifier strengthens the signal on the cable 106 times. After it passes through the amplifier, the signal has been boosted 106.106 times. Simplify this expression. Answer Answer 45 Old Technology – The first transatlantic cable has 51 amplifiers along its length. Each amplifier strengthens the signal on the cable 106 times. After it passes through the amplifier, the signal has been boosted 106.106 times. Simplify this expression. 106.106 = 10(6+6) = 1012 Category Return Question 46 Travel – The number of visitors from various countries to the United States in a recent year are listed in the table. Order the countries according to the number of visitors from greatest to least. Country Number of Visitors Canada 1.46 x 107 France 1.1 x 106 Germany 1.8 x 106 Japan 5.1 x 106 Mexico 1.03 x 107 United Kingdom 4.7 x 106 Answer Answer 46 Country Number of Visitors Greatest to Least Canada 1.46 x 107 1 France 1.1 x 106 6 Germany 1.8 x 106 5 Japan 5.1 x 106 3 Mexico 1.03 x 107 2 United Kingdom 4.7 x 106 4 Category Return Question 47 Add the two matrices below. Be sure to show your method. Answer Answer 47 Category Return Question 48 The amount of money spent at the Outlet Mall continues to increase as modeled by T(x)=12.(1.12)x. T(x) is in millions of dollars. Two marks on the domain axis represents 1 year. A mark on the range axis represents 5 million dollars. How much money was spent at the mall in 1995 (year 0)? How much was spent in 2006 (year 10)? Answer Answer 48 Calculated for 2006: T(x) = 12(1.12)10 = $37.3 million About 37 million dollars spent in 2006 About 12 million dollars spent in 1995 Calculated for 1995: T(x) = 12(1.12)0 = $12 million 2006 or 10 y Category Return Question 49 (-2)-3 + (-3)-2 =? f. -17/72 g. -1/72 h. 0 j. 1/17 k. 17/72 Answer Answer 49 g. -1/72 Category Return Question 50 If x = -5, then 2x2 -6x +5 = ? a.-15 b.15 c.25 d.85 e.135 Answer Answer 50 c. 25 Category Return Question 51 How do you know 138 is divisible by 3? I can apply the Divisibility Rule: a. The sum of the digits is divisible by 3. b. The last two digits form a number divisible by 3. c. The number is divisible by both 2 and 3. d. The product of the digits is divisible by 3. Answer Answer 51 a. a. the sum of the digits is divisible by 3. Divisibility Rule for 3 Category Return Question 52 The square root of 289 is _____. a. 9 b.14 c. 17 d. 22 Answer Answer 52 c. 17 √289 = 17 17 x 17 = 289 Category Return Question 53 Write an equivalent fraction for 2/5 with a denominator of 100. Answer Answer 53 numerator denominator 2 x 20 5 x 20 40 100 Category Return Question 54 Express each rate as a unit rate: $25 for 5 dozen donuts 21.5 lbs in 12 weeks 400 m in 48.5 s Answer Answer 54 unit rate: $25 for 5 dozen donuts Divide both numerator & denominator by 5. $5/1doz 21.5 lbs in 12 weeks Divide both the numerator & the denominator by 12. ≈ 1.8 lbs/1 week 400 m in 48.5 s Divide both the numerator & the denominator by 48.5. ≈ 8.25 m/1 s Category Return Question 55 Exponent Rules Old Technology – The first transatlantic cable has 51 amplifiers along its length. Each amplifier strengthens the signal on the cable 106 times. Represent the number of times the signal has been boosted after it has passed through the first four amplifiers as a power of 106. Then simplify the expression. Answer Answer 55 Old Technology – The first transatlantic cable has 51 amplifiers along its length. Each amplifier strengthens the signal on the cable 106 times. Represent the number of times the signal has been boosted after it has passed through the first four amplifiers as a power of 106. Then simplify the expression. (106)4 = 10(6x4) = 1024 Category Return Question 56 Electromagnetic Wavelength Electromagnetic Spectrum – Radiation Astronomers observe Radiowave 10 km electromagnetic radiation X rays 4.5 x 10-1 nm (including visible and non-visible) UV rays 6.5 x 101 nm at various wavelengths to gain Red 6.5 x 102 nm information and understandings Violet 425 nm about our cosmos. The table Microwaves 5 x 101 mm contains some typical Gamma rays 800 x 10-5 nm wavelengths of the spectrum. Place them in order of the Hint: Convert to the same unit. 1 km = 1000 m smallest to the largest 100 cm = 1 m 10mm = 1cm wavelength. 1000 μm = 1 mm 1000 nm = 1 μm Answer Answer 56 Electromagnetic Wavelength Radiation Conversion to nm 10 km (1000m/km) x (100cm/m)(10mm/cm) x (1000μm/mm)(1000nm/μm) = 1 x 1013 Smallest to Largest Wavelength Radio wave 10 km X ray 4.5 x 10-1 nm 4.5 x 10-1 2 UV ray 6.5 x 101 nm 6.5 x 101 3 Red 6.5 x 102 nm 6.5 x 102 5 Violet 425 nm 4.25 x 102 4 Microwave 5 x 101 mm Gamma ray 800 x 10-5 nm 55 mm (1000μm/mm) x (1000nm/μm) = 5.5 x 107 8.0 x 10-3 7 6 1 Category Return Question 57 Answer Answer 57 Category Return Question 58 Which of the following equations represents exponential growth of compound interest? a. y = C(1 + r)t b. A = P(1 + r/n)nt c. y = C(1-r)t Answer Answer 58 b. A = P(1 + r/n)nt Category Return Question 59 The formula for the lateral surface area S of a right circular cone is S = πr√(r2 + h2), where r is the radius of the base and h is the altitude. What is the lateral surface area, in square feet, of a right circular cone with base radius 3 feet and altitude 4 feet? f. 3π√5 g. 3π√7 h. 15π j. 21π k. 75π/2 Answer Answer 59 h. 15π Category Return Question 60 If xyz ≠ 0, which of the following is equivalent to x 2y3z4 (xyz2)2 a. 1/y b. 1/z c. Y d. x/yz e. xyz Answer Answer 60 a. 1/y Category Return Question 61 Using mental math determine if 965,476 is divisible by 2, 3, 4, 5, 6, 9, or 10. Answer Answer 61 965,476 is divisible by 2 and 4. Category Return Question 62 The square root of 16 is _____. a. 1 b. 2 c. 3 d. 4 e. 5 Answer Answer 62 d. 4 Category Return Question 63 Write each of the fractions below as a percent. 17/20 3/5 2/25 Answer Answer 63 Write each of the fractions below as a percent. 17/20 3/5 2/25 17 x 5 20 x 5 3 x 20 5 x 20 2 x 4 4 x 25 85/100 60/100 8/100 85% 60% 8% Category Return Question 64 Given: 1 mi = 5280 ft 1 min = 60 s 1 h = 60 min 1 gal = 64 oz 1 h = 3600 s Convert the following rate: 180 gal/h = _____oz/min Answer Answer 64 Given: 1 mi = 5280 ft 1 gal = 64 oz 1 min = 60 s 1 h = 3600 s 1 h = 60 min Convert the following rate: 180 gal/h = _____oz/min 180 gal x 64 oz x 1 h = 192 oz/min 1 h x 1 gal x 60 min Category Return Question 65 The length of a rectangle is five times the width of the rectangle. If the width of the rectangle is q units, what is the area of the rectangle? a. 5q units2 b. 5q2 units2 c. q + 5 units2 d. 5q(q + 5) units2 Answer Answer 65 The length of a rectangle is five times the width of the rectangle. If the width of the rectangle is q units, what is the area of the rectangle? b. 5q2 units2 5q q Area = length x width A = 5q x q = 5q(1+1) = 5q2 Category Return Question 66 The smallest unit of time is the yoctosecond, which equals 0.0000000000000000000000 01 second. Write this number in scientific notation. Answer Answer 66 The smallest unit of time is the yoctosecond, which equals 0.000 000 000 000 000 000 000 001 second. Write this number in scientific notation. 1 x 10-24 s Category Return Question 67 Complete the matrix subtraction problem below. Answer Answer 67 0 -6 Category Return Question 68 For the exponential equations below for growth, compound interest, and decay, y = C(1 + r)t A = P(1 + r/n)nt y = C(1-r)t match the letters with what they represent. A C n P r t initial value time principal current value number of times rate Answer Answer 68 For the exponential equations below for growth, compound interest, and decay, y = C(1 + r)t A = P(1 + r/n)nt y = C(1-r)t match the letters with what they represent. A C n P r t initial value time principal current value number of times Category rate Return Question 69 The two rectangles in the figure below have the same area. What is a expressed in terms of b? f. 2b/3 b g. 3b/2 b + 3 h. 2/3b a + 2 j. 3/2b k. b-1 a Answer Answer 69 f. 2b/3 Category Return Question 70 Which of the following is the solution statement for the inequality -3<4x – 5 ? a. x >2 b.x > ½ c. x < -2 d. x < ½ e. x < 2 Answer Answer 70 b. x > 1/2 Category Return Credits Triumph Learning and Colorado Educators (2009) CSAP Coach, Science, Grade 10. New York, NY: Triumph Learning, Inc. Questions and Answers were either taken directly from these sources or modified for inclusion into this learning activity and added to the synthesizers own questions. Used for Educational Purposes Only.