Computer Science6

438) (Multiple Answers; /) What type of data is the result of each of the following lines of code (int/ float/ string)? 1 - str(2.34) 2 - int('2') 3 - float(2)

1 - string 2 - int 3 - float

440) What will you see after on the next line? >>> round(3.9)

4

444) What will you see on the next line? >>> int(5.6)

5

454) What is the value of the variable result after these lines of code are executed? >>> a = 3 >>> b = 2 >>> c = 0 >>> result = a * b - c * b The value of result is

6

437) What is the output for the following line of code? >>>int(2.8) A - 2.8 B - 2 C - 3 D - '2.8'

B - 2

480) What is the output of the following program? Assume numA is 4, numB is 2, and numC is 6. if numA < numB and numB < numC: print(numA)elif numB < numA and numB < numC: print(numB) else: print(numC) A - numA B - 2.0 C - numB D - 4.0

B - 2.0

463) What will be the output of the following program? Assume the user responds with a 5 for the first number and a 4 for the second number. answerA = input("Enter a number. ") answerB = input("Enter a second number. ") numberA = int(answerA) numberB = int(answerB) result = numberA + numberB / 2 print ("The result is" , result) A - The result is4.5 B - The result is 7.0 C - The result is7.0 D - The result is 4.5

B - The result is 7.0

469) What will be the output of the following program? Assume the user responds with a 3. answer = input ("How many shirts would you like? ") priceShirt = 4.00 intNumberShirt = float(answer) moneyDue = intNumberShirt * priceShirt print ("You owe $" + str(moneyDue)) A - An error occurs. B - You owe $ moneyDue C - You owe $12.0 D - You owe $ 12.0

C - You owe $12.0

449) The formula to convert Fahrenheit (F) temperature to Celsius (C) is C=F−321.8 Which line of code will accomplish this conversion? A - celsius = Fahrenheit - 32 * 1.8 B - celsius = Fahrenheit - 32 /* 1.8 C - celsius = (fahrenheit - 32) / 1.8 D - celsius = (Fahrenheit - 32) * 1.8

C - celsius = (fahrenheit - 32) / 1.8

406) (Multiple Answers) Which of the following statements about computational thinking are true? Select 3 options. a - Computational thinking involves the techniques of decomposition, pattern recognition, abstraction, and algorithm development. b - Understanding all of the minor details about a problem is critical in computational thinking. c - The result of computational thinking is a problem broken down into its parts to create a generalized model and possible solutions. d - Computational thinking is a set of techniques used to help solve complex problems or understand complex systems. e - Computational thinking is basically synonymous with programming.

a - Computational thinking involves the techniques of decomposition, pattern recognition, abstraction, and algorithm development. c - The result of computational thinking is a problem broken down into its parts to create a generalized model and possible solutions. d - Computational thinking is a set of techniques used to help solve complex problems or understand complex systems.

408) (Multiple Answers) Which of the following statements are true regarding abstraction? Select 3 options. a - Refinement is the opposite of abstraction. b - Abstraction is a process where details are added to further define the problem. c - Abstraction provides a way to see a complex situation more clearly. d - Creating a model must occur before abstraction. e - The level of abstraction needed depends on the situation and your goals.

a - Refinement is the opposite of abstraction. c - Abstraction provides a way to see a complex situation more clearly. e - The level of abstraction needed depends on the situation and your goals.

400) (Vocab) technique where important general characteristics are kept, while details are ignored

abstraction

446) (Vocab) A statement that assigns a value to a variable

assignment statement

407) Which of the following statements are true regarding models? Select 3 options. a - Models help you understand a complex situation by including all of the details. b - In a model, the general characteristics are separated from the details. c - Models help predict how a specific solution will respond. d - Models help communicate a design. e - Models represent the system or problem at a detailed implementation level.

b - In a model, the general characteristics are separated from the details. c - Models help predict how a specific solution will respond. d - Models help communicate a design.

472) (Vocab) converts data to boolean

bool()

471) (Vocab) a data type that is used to represent true and false

boolean

410) Taking a recipe and breaking it down into its individual sections, like ingredients, preparation, cooking instructions, and nutritional information, is an example of _____. a - pattern recognition b - refinement c - decomposition d - abstraction

c - decomposition

416) (Vocab) the process of connecting two or more strings together using the + sign

concatenation

451) (Multiple Answers) Assume you previously entered these lines of code. >>> a = 3 >>> b = 2 >>> c = 0 Which lines of code below generate errors? Select 2 options. a - result = a * b - b / (c + b) b - result = a * b - c / (a + c) c - result = a * b - c / b d - result = a * b - b / c e - result = ab + bc

d - result = a * b - b / c e - result = ab + bc

401) (Vocab) removes the details of data and keeps its general characteristics, as with a data type

data abstraction

402) (Vocab) technique where a problem is broken down into smaller, less complex parts

decomposition

417) (Vocab) a number with decimal places such as 2.3 and -8.78

float

433) (Vocab) a function that converts a number or a string of digits into a float

float()

458) Asking the user for four numbers is an example of

input

457) (Vocab) pauses the program until the user enters a response, which can be saved in a variable

input()

466) (/) The (input()/ display()/ print()) function is used to acquire data from the user.

input()

476) (/) You can join the Army if you are over 17 and healthy. Have you met those requirements if you are 16 and healthy (yes/no)?

no

473) (Vocab) a boolean operator that returns the opposite of the condition's truth value

not

419) (Vocab) a data type consisting of integers or decimal numbers

numeric

474) (Vocab) a boolean operator that returns false only when both conditions are false

or

403) (Vocab) technique of looking for similarities between problems or objects

pattern recognition

468) (/) The (print()/ display()/ input()) function is used to display the program's output.

print()

404) (Vocab) removes the details of a process, as with a function

procedural abstraction

459) Finding the average of the four numbers is an example of

processing

434) (Vocab) rounds a float to an integer to the nearest integer; when the decimal part is 0.5, it rounds even; round(number, places) rounds to the specified number of decimal places

round()

435) (Vocab) converts numeric data to string

str()

420) (Vocab) a data type consisting of characters

string

421) (Vocab) a function used to determine the data type

type()

447) (Vocab) Identifier used to store a value

variable

422) (Multiple Answers) 1 - 2 * 5 = 10 2 - 4 ** 3 = 64 3 - 7 / 2 = 3.5 4 - 17 % 3 = 2

1 - 10 2 - 64 3 - 3.5 4 - 2

423) (Multiple Answers) Select the data type for each example below. 1 - 2.5 2 - '2.5' 3 - 3 a - int b - float c - string

1 - b - float 2 - c - string 3 - a - int

436) (Multiple Answers; /) Identify the type of data for each value below (string/ float/ int). 1 - 12.023 2 - 'Hello World' 3 - 52

1 - float 2 - string 3 - int

445) What will you see on the next line? >>> round(9.6)

10

479) What is the value of numX when this program is executed? conditionA = False conditionB = True if conditionA or conditionB: numX = 5 else: numX = 10 numX is

5

442) What will you see on the next line? >>> int(6.5)

6

443) What will you see on the next line? >>> round(5.7)

6

429) What is the result of the arithmetic operation? 3**4 =

81

424) Which number is equivalent to 72.5e-2? A - 0.725 B - 7.25 C - 7250 D - 72.5

A - 0.725

430) Which data type is 2.5? A - float B - single C - string D - int

A - float

426) What is the result for the following line of code? >>> print("one" + "day") A - oneday B - one day C - one + day D - one day

A - oneday

465) What can you change, if anything, in this line so that there will not be a space between the dollar sign and the amount of money due? print("You owe $", moneyDue) A - print("You owe $" + str(moneyDue)) B - The space cannot be removed. C - print("You owe $" , str(moneyDue)) D - You do not need to change anything. There is no space.

A - print("You owe $" + str(moneyDue))

414) (/) (Refinement/ Abstraction) is a technique where the general characteristics are kept and the details are hidden.

Abstraction

467) What will be the output of the following program? Assume the user responds with a 5. answer = input ("How many hamburgers would you like? ") priceBurger = 3.00 intNumberBurgers = float(answer) moneyDue = intNumberBurgers * priceBurger print ("You owe $", moneyDue) A - An error occurs. B - You owe $ 15.0 C - You owe $ moneyDue D - You owe $15.0

B - You owe $ 15.0

441) What will you see after on the next line? >>> int("3.9") A - 4 B - 3 C - an error statement D - 3.9

C - an error statement

411) (/) (Programming/ Computational thinking) allows you to break down a complex problem into understandable parts so that step-by-step solutions can be found. It includes four techniques.

Computational thinking

412) (/) (Pattern recognition/ Decomposition) is a technique for breaking a problem down into smaller, less complex parts.

Decomposition

413) (/) (Pattern recognition/ Decomposition) involves looking for similarities.

Pattern recognition

409) Taking a group of recipes and identifying the similarities is an example of _____. a - pattern recognition b - decomposition c - abstraction d - refinement

a - pattern recognition

452) (Multiple Answers) Which of the following are valid variable names? Select 3 options. a - player_score b - 2nd_num c - playerScore d - num1 e - player@

a - player_score c - playerScore d - num1

431) (Vocab) complex(real, imaginary) creates a complex number with the specified real and imaginary parts

complex()

418) (Vocab) integers such as 3, -2400, and 0

int

462) Fill in the blank in order to convert the user's response to a number without a decimal point. >>> answer = input("How many sodas do you want? ") How many sodas do you want? 5 >>> numberAnswer = _____(answer)

int

432) (Vocab) a function that converts a number or a string of digits into an int by truncating the decimal part

int()

478) What is the output of this program? age = 4 if age > 5: print("more") else: print("less") Output:

less

415) (/) Through the use of computational thinking techniques, models and algorithms can be created. A(n) (algorithm/ model) can be created that represents the generalized problem. A(n) (algorithm/ model), or set of step-by-step instructions, can be developed to solve the problem.

model, algorithm

405) (Vocab) adding details to a model to make it less abstract, the inverse process to abstraction

refinement

475) (Vocab) an operator used to compare two values

relational operator

425) (Multiple Answers; /) Choose the correct data type (string/int/float). 1 - type(3) tells you the type is 2 - type("35") tells you the type is 3 - type(3.5) tells you the type is

1 - int 2 - string 3 - float

456) What is the value of the variable result after these lines of code are executed? >>> a = 6 >>> b = 2 >>> c = 3 >>> result = a * b - a / c The value of the variable is

10.0

464) What will be the output of the following program? Assume the user responds with a 2. answer = input ("How many books would you like? ") priceBook = 3.20 intNumberBooks = float(answer) moneyDue = intNumberBooks * priceBook print ("You owe $", moneyDue) A - You owe $ 6.40 B - You owe $6.40 C - An error occurs. D - You owe $moneyDue

A - You owe $ 6.40

428) Which data type is -7? A - float B - string C - int D - single

C - int

470) (Vocab) a boolean operator that returns true only when both conditions are true

and

461) (Multiple Answers) Which statements will ask the user for a number? Select 2 options. a - answer = in("How many sodas do you want? ") b - answer = input(How many sodas do you want? ) c - answer = input('How many sodas do you want? ') d - answer = in(How many sodas do you want? ) e - answer = input("How many sodas do you want? ")

c - answer = input('How many sodas do you want? ') e - answer = input("How many sodas do you want? ")

460) Telling the user the average is an example of

output

477) (/) You can earn a scholarship if you have an ACT over 30 or you are valedictorian of your high school. Have you earned a scholarship if you have an ACT of 34 but are not the valedictorian (yes/no)?

yes

455) What is the value of the variable result after these lines of code are executed? >>> a = 2 >>> b = -3 >>> c = 4 >>> result = (a - b) * c The value of result is

20

439) What will you see on the next line? >>>int(3.9)

3

448) What is the value of the variable moneyDue after these lines of code are executed? >>> numSodas = 2 >> costSodas = 1.50 >>> moneyDue = numSodas * costSodas The value of moneyDue is

3

427) What is the result of the arithmetic operation? 5**2 =

25

450) What is the value of the variable result after this code is executed? >>> a = 7 >>> b = 2 >>> c = 0 >>> result = a * b - b / (c + b) >>> result Output:

13

453) What is the value of the variable result after these lines of code are executed? >>> a = 10 >>> b = 2 >>> c = 5 >>> result = a * b - a / c The value of the variable is

18.0