CBSE class 8 Python list loop functions solved exercise question answer worksheet

CBSE class 8 Python list loop functions solved exercise question answer worksheet

	Select the correct option.
	a.	Which of the following is used to refer to each item in a list?	[R]
		base	index
		integer	strings
	b.	Which error will be shown if you try to access the element that is not defined in the code?	[U]
		IndexError	TypeError
		FileError	TextError
	c.	Which operator can be used to access the range of items from a list.	[R]
		:	-
		+	*
	d.	Which of the following methods is used to delete a particular element from the list?	[R]
		delete()	remove()
		cut()	set()
	e.	Which of the following can be used to add an item at the end of the list?	[R]
		add()	append()
		plus()	pop()
	Answer in one word.	[U]
	a.	A program structure containing one or more instructions that are excecuted repeatedly.
	Ans:	Loops
	b.	The type of loop that is used to iterate over a sequence, such as a list or a string.
	Ans:	Counter-controlled Loop/For loop
	c.	The function that is used to generate a sequence of numbers.
	Ans:	range () function
	d.	What can be used to stop a ‘for’ loop before the loop ends?
	Ans:	break statement
	Answer the following.
	a.	What will happen if you use a decimal value for an index while accessing a list?	[Ap]
	Ans:	When you use a decimal value for an index while accessing a list, it will raise a TypeError.
	b.	Write a program to calculate the sum of the first ‘max’ integers. The value of ‘max’ is entered by the user.  (8 lines)	[R]
	Ans:	max = input("Enter numbers separated by space ") maxList = max.split() print("\n") print("All entered numbers ", maxList) # Calculating the sum of all user entered numbers sum1 = 0 for num in maxList:     sum1 += int(num) print("Sum of all entered numbers = ", sum1)
	c.	Write a program in Python to access the elements of a list and display it one by one.	[U]
	Ans:	my_list = ['p', 'r', 'o', 'b', 'e'] print(my_list[0]) print(my_list[1]) print(my_list[2]) print(my_list[3]) print(my_list[4])
	d.	Write a function to generate the multiplication table of a number passed to it as a parameter.	[U]
	Ans:	num = int(input("Enter the number: ")) print("Multiplication Table of", num) for i in range(1, 11):    print(num,"X",i,"=",num * i)
	What will be the output of the following code?	[An]
	a.	for i in range(1, 10):     if i==5:         break     print("i=", i*2) print("Task completed")
	Ans:	i= 2 i= 4 i= 6 i= 8 Task completed
	b.	numbers =[1,5,3,4,2] print (numbers) sum=0 for i in numbers: sum=sum+i print(sum)
	Ans:	[1, 5, 3, 4, 2] 15

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