L-7 Coding in Python Class 7th Computer

 

Class – VII

Subject- Computer

L-7 Coding in Python

 

State whether these statements are true or false.

1)    Is Python case sensitive when dealing with identifiers. TRUE

2)    Keywords can be used as identifiers. FALSE

3)    Variable name can be of any length. TRUE

4)    In python a variable must be declared before it is assigned a value. FALSE

D   

      

                   Download Python

Let’s Catch up

1)    Which of this operator is used for addition of numbers in python?

a)    +

b)    –

c)     *

d)    /

Ans: a) +

 

2)    Which data type is used to store map values?

a)    Int

b)    String

c)     Set

d)    Dictionary

Ans: d) Dictionary

 

Exercise

 

A)   Tick (ü) the correct option:

 

1)    What will be the output of the following print (2**4+(5+5)**(1+1))

a)    Error

b)    28

c)     118

d)    116

Ans: c) 118

2)    What is the output of the code print(-18//4)

a)    -4

b)    4

c)     -5

d)    5

Ans: a) -4

3)    Which of the following operators has the high precedence?

a)    Not

b)    &

c)     *

d)    +

Ans: c) *

4)    Which one of these is floor division?

a)    //

b)    /

c)     %

d)    None of above

Ans: a) //

5)    Which of the following is not keyword?

a)    Eval

b)    Assert

c)     Pass

d)    None

Ans: a) Eval

B)   Fill in the blanks using the words from the help box:

[   Binary,    Relational,   Reserve,    Addition ]

 

1)    Keyword are the reserve  word.

2)    Operator that work on two operands are called binary   operator.

3)    Relational  are used for comparing two values.

4)    In the expression 121+25  addition   is the operator.

 

C)   State ‘T’ for True or ‘F’ for False:

1)    A Variable name consist of digits, alphabet   and underscore. TRUE

2)    Keywords cannot be used as variable names. TRUE

3)    Float data type is used to store Boolean values. FALSE

4)    The input ( ) allows you to take input from users. FALSE

 

D)   Short answer type questions:

1)    What are keywords?

Ans: Keywords are reserved words in Python with specific meanings.

 

2)    Define the term operator?

Ans: An operator is a symbol that represents an operation to be performed.

 

3)    What is PEDMAS?

Ans: PEDMAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

 

E)    Long answer type questions:

1)    What is the difference between Relation Operator and Assignment operator?

Ans: Relational operators compare values. Assignment operators assign values.

 

2)    What is operator Precedence?

Ans: Operator precedence defines the order in which operations are performed in an expression.

 

F)    Let’s Solve:

1)    Create a program using arithmetic operators.

Ans: a = 10

b = 5

sum_result = a + b

print("Sum:", sum_result)

 

2)    Write a program to find the greatest number among three numbers. Write their steps also.

Ans: num1 = 15

num2 = 20

num3 = 10

greatest = max(num1, num2, num3)

print("Greatest Number:", greatest)

 

G)   Guess my name:

1)    I am an operator that used for comparison.

Ans: Comparison Operator

 

2)    I am an operator that used for sum.  

Ans: Addition Operator

 

3)    I am the reserve words.

Ans: Reserved Words

 

4)    I am option used to store numeric values.

Ans: Integer

 

5)    I am option used to store true and false.

Ans: Boolean

 

H)   Tech Practice:

1)    Write a program to find out the difference of two given numbers.

Ans: num1 = 25

num2 = 15

difference = num1 - num2

print("Difference:", difference)

 

2)    Create a program to print message “good morning”.

Ans: print("Good morning!")

 

I)      Demonstrate:

1)    The use of operators with examples.

Ans: a = 10

b = 5

result = a + b

print("Result:", result)

 

2)    Also demonstrate use of variables and data types.

Ans: name = "John"

age = 25

height = 1.75

is_student = True

 

print("Name:", name)

print("Age:", age)

print("Height:", height)

print("Is Student:", is_student)