Python Chp. 1

Question 1

True/False:

Computer science is the study of computers.

Answer 1

False

Computer science is the study of what can be computed.

Question 2

True/False:

The CPU is the “brain” of the computer.

Answer 2

True

The CPU performs simple arithmetic and logical operations.

Question 3

True/False:

Secondary memory is also called RAM.

Answer 3

False

The RAM is considered main memory and a HDD or SSD is considered secondary memory.

Question 4

True/False:

All information that a computer is currently working on is stored in main memory.

Answer 4

True

Question 5

True/False:

The syntax of a language is its meaning and semantics is its form.

Answer 5

False

The syntax of a language is its form and the semantics is its meaning.

Question 6

True/False:

A function definition is a sequence of statements that defines a new command.

Answer 6

True

Question 7

True/False:

A programming environment refers to a place where programmers work.

Answer 7

False

A programming environment is a program designed to help programmers write programs. It usually includes auto-indenting, auto-completion, color syntax highlighting, and interactive development features.

Question 8

True/False:

A variable is used to give a name to a value so it can be referred to in other places.

Answer 8

True

Question 9

True/False:

A loop is used to skip over a section of a program.

Answer 9

False

A loop is used to repeat a section of a program.

Question 10

True/False:

A chaotic function can’t be computed by a computer.

Answer 10

False

A chaotic function can be computed, however the results won’t provide any meaningful pattern.
A mathematical model is called chaotic if very small changes in the input lead to large changes in the result, making them seem random or unpredictable.

Question 11

What is the fundamental question of computer science?

a) How fast can a computer compute?
b) What can be computed?
c) What is the most effective programming language?
d) How much money can a programmer make?

Answer 11

b) What can be computed

Question 12

An algorithm is like a

a) newspaper
b) venus flytrap
c) drum
d) recipe

Answer 12

d) recipe

Question 13

A problem is intractable when

a) you cannot reverse its solution
b) it involves tractors
c) it has many solutions
d) it is not practical to solve

Answer 13

d) it is not practical to solve

Question 14

Which of the following is not an example of secondary memory?

a) RAM
b) hard drive
c) USB flash drive
d) DVD

Answer 14

a) RAM

Question 15

Computer languages designed to be used and understood by humans are

a) natural languages
b) high-level computer languages
c) machine languages
d) fetch-execute languages

Answer 15

b) high-level computer languages

Question 16

A statement is

a) a translation of machine language
b) a complete computer command
c) a precise description of a problem
d) a section of an algorithm

Answer 16

b) a complete computer command

Question 17

One difference between a compiler and an interpreter is

a) a compiler is a program
b) a compiler is used to translate high-level language into machine language
c) a compiler is no longer needed after a program is translated
d) a compiler processes source code

Answer 17

c) a compiler is no longer needed after a program is translated

Question 18

By convention, the statements of a program are often placed in a function called

a) import
b) main
c) program
d) IDLE

Answer 18

b) main

Question 19

Which of the following is not true of comments?

a) They make a program more efficient
b) They are intended for human readers
c) They are ignored by Python
d) In Python, they begin with a pound sign (#)

Answer 19

a) They make a program more efficient

Question 20

The items listed in the parentheses of a function definition are called

a) parentheticals
b) parameters
c) arguments
d) both b and c are correct

Answer 20

d) both b and c are correct