1.1-1.6 questions

Question 1

Computer science allows ppl to?

• create new software
• solve problems
• all of the above
• communicate

Answer 1

• all of the above

Question 2

_____ is based on a set of very specific rules for communicating.

• Familiar Language
• Natural Language
• Instinctive Language
• Formal Language

Answer 2

Formal Language

Question 3

Currently there is over \_\_\_\_\_\_\_\_\_\_\_\_\_ unfilled jobs in the US in computer science.
  1000 
  1.5 million 
  100,000 
  1 billion

Answer 3

1.5 million

Question 4

\_\_\_\_\_\_\_\_\_\_\_\_ is designed to be very clear and work consistently every time it is used.
  Precise Language 
  Formal Language 
  Familiar Language 
  Natural Language

Answer 4

Formal Language

Question 5

The print command in Python can be written as PRINT or print.
True
False

Answer 5

False

Question 6

What is wrong with the following line of code?
print(Hello World)
  It needs " around Hello World
  It cannot print words 
  It needs # around Hello World
  print should be PRINT

Answer 6

It need “ around Hello World

Question 7

True or False: When running the print command as seen in the code below, the text that is output will be displayed in quotation marks.

print(“Hello there!”)
True
False

Answer 7

False

Question 8

What is the Python command that can be used to display text and numbers on the screen?
  print
  python
  \+
  hello

Answer 8

print

Question 9

Short term memory used by the CPU.
  main memory 
  input 
  output 
  secondary memory

Answer 9

main memory

Question 10

Which of the following carries out the commands in programs?
  CPU 
  main memory 
  hardware 
  power source

Answer 10

CPU(Central Processing Unit)

Question 11

\_\_\_\_\_\_\_\_\_\_\_\_\_ is information the user sends to the computer.
  secondary memory 
  input 
  program 
  software

Answer 11

input

Question 12

Programs that run on hardware are called:
  software 
  input 
  computer 
  output

Answer 12

software

Question 13

What is output by the following line of code?
print(“I\tLove Python”)

I Love Python
I Love Python
I Love Python
I\tLove Python

Answer 13

I Love Python

Question 14

What would be output by the following code?
print(“Hello”, end=””)
print(“ Jackson”)

HelloJackson
Hello Jackson
Hello, end=”” Jackson

Hello

Jackson

Answer 14

Hello Jackson

Question 15

When the computer translates digital information to information humans can use, it is called \_\_\_\_\_\_\_\_\_\_\_\_\_.
  input 
  output 
  escape characters 
  command

Answer 15

output

Question 16

\_\_\_\_\_\_\_\_\_\_\_\_ are special output characters marked with a \.                           
  Escape sequences 
  Output sequences 
  Strings 
  Print characters

Answer 16

Escape Sequences

Question 17

What is output by the following line of code?
print(5 + 9*2)

592
23
518
28

Answer 17

23

Question 18

What do we call notes in computer code for the programmer that are ignored by the compiler?
  Escape characters 
  Print commands 
  Output 
  Comments

Answer 18

comments

Question 19

This code is supposed to accept a word as input, and then print that word to the screen.
input(“Enter a word: “)
print(w)

What is the error in this code?
The input needs to be stored to a variable, w
Nothing, there is no error.
When we print(w), the w should be in quotes

Answer 19

Input needs to be stored with the variable w

Question 20

Which of the following is a correct variable name?
  7temperature 
  low_Temperature 
  Low temperature 
  low--temperature

Answer 20

low_Temperature

Question 21

What is output by the following lines of code if we input the name “Sally”?

n = input("What is your name? ")
print("Hello there " + n)
  There is an error since the input command needs a str 
  Hello there Sally 
  Hello there 0 
  Hello there n

Answer 21

Hello there Sally

Question 22

Which of the following is NOT true about variables?

• Variable names can be words: such as temperature or height.
• The value stored by a variable cannot be changed after it is assigned.
• Variables are a name for a spot in the computer’s memory.
• The value stored by a variable can be changed after it is assigned.

Answer 22

• The value stored by a variable cannot be changed after it is assigned.

Question 23

Assume the user types in 7 and 10. What is output by the following?

num1 = input(“Enter a number: “)
num2 = input(“Enter a number: “)
print(num1 + num2)

17
710
No output, there is an error.
71

Answer 23

710

Question 24

Which command converts a number to a string?

num()

int()

str()

word()

Answer 24

str()

Question 25

Which of the following is true about strings? - They do not let the user type in letters, numbers and words - They cannot be stored to a variable - An input (unless otherwise specified) will be stored as a string - They are used for arithmetic calculations

Answer 25

- An input (unless otherwise specified) will be stored as a string

Question 26

What is wrong with the following code? num1 = int(input("Enter a number: ")) num2 = int(input("Enter a number: ")) num3 = int(input("Enter a number: ")) print("The average is: " + (num1 + num2 + num3)/3) - The last line should be print("The average is: (num1 + num2 + num/3)) - It needs a int() command - It needs a str() command - The variables should be 1num, 2num, 3num

Answer 26

it needs a str() command

Question 27

Which of the following lines of code correctly inputs a number? - n = input("Enter a value: ") - n = str(input("Enter a value: ")) - n = int(input("Enter a value: ")) - n = num(input("Enter a value: "))

Answer 27

- n = int(input("Enter a value: "))

Question 28

``` _____________ data is what is translated to digital format so it can be stored in a computer. Digital Binary Secondary Analog ```

Answer 28

Analog