HALF YEARLY EXAMINATION (2025-26) computer subject vii class 7 Std.: VII

HALF YEARLY EXAMINATION (2025-26) computer subject vii class 7
Std.: VII	Answer Scheme	Sub.:    Computer Studies
Time Allowed:   1 hour	Maximum Marks: 30

General Instructions:
All questions are compulsory.
Q.1	Select the correct option.	[10]
	Learning Outcome: to know what cloud computing means
		Given below are two statements. One is Assertion(A) and the other is Reason (R).  Assertion (A): Aarav can watch videos stored on the cloud from his phone while travelling. Reason (R): Cloud computing lets users store and access their data from anywhere, at any time. Consider the above (A) and (R) statements and select the correct answer.	(1) [An]
		Both A and R are true, and R is the correct explanation of A.
		Both A and R are true, but R is not the correct explanation of A.
		A is true, but R is false.
		A is false, but R is true.
	Ans.	i. Both A and R are true, and R is the correct explanation of A.
		Source: pg. no. 65
	Learning Outcome: to know the use of basic electronic components
		Tara has created a circuit in Tinkercad using an LED and a resistor. What does she need to supply power to the components in the circuit?	(1)[U]
		Switch	Battery
		Buzzer	Speaker
	Ans.	ii. Battery
		Source: pg. no. 22
	Learning Outcome: to identify the different categories of functions
		In OpenOffice Calc, what will be the output of the given formula? =ROUND(56.7894; 1)	(1)[U]
		56.7	56.8
		56.79	56.78
	Ans.	ii. 56.8
		Source: pg. no.40
	Learning Outcome: to use Google Drive cloud storage service for storing and sharing data
		Anil is sharing a Google sheet with his friend so they can both make changes. Which access level should Anil select?	(1)[U]
		Viewer	Commenter
		Editor	Owner
	Ans.	iii. Editor
		Source: pg. no. 72-73
	Learning Outcome: to highlight specific data
		A shopkeeper wants to highlight all products with a stock less than five units in red in his Calc spreadsheet. Which feature should be use?	(1)[U]
		AutoFilter	Standard Filter
		Sorting	Conditional Formatting
	Ans.	iv. Conditional Formatting
		Source: pg. no. 54-56
	Learning Outcome: to design a 3D object that uses a circuit assembly
		6. What will happen when you group the hollow box and the solid cone shown in the image?	(1)
		Both shapes are removed.
		The bottom part of the cone is removed.
		The shapes change to a single colour.
		The top part of the cone is removed.
	Ans.	iv. The top part of the cone is removed.
		Source: pg. no. 30
	Learning Outcome: to identify the different categories of functions
		Which function in Calc will change "aarav" to "AARAV"?	(1)[U]
		=LOWER("aarav")	=UPPER("aarav")
		=UPPER(AARAV)	=LOWER(AARAV)
	Ans.	ii. =UPPER("aarav")
		Source: pg. no. 41
	Learning Outcome: to know the use of basic electronic components
		You have created a simple circuit with an LED, resistor and a switch in Tinkercad. What happens when the switch is turned ON?	(1)[R]
		The circuit is closed and the LED glows.
		The circuit is open and the LED does not glow.
		The battery stops working.
		The LED burns out.
	Ans.	i. The circuit is closed and the LED glows.
		Source: pg. no. 22
	Learning Outcome: to know the use of Google Slides
		Priya wants to create a presentation for her science project. She wants to work on it along with her classmates at the same time. Which Google Drive application should she use?	(1)[U]
		OpenOffice impress	Google Docs
		Google Sheets	Google Slides
	Ans.	iv. Google Slides
		Source: pg. no. 74
	Learning Outcome: to know the use of basic electronic components
		What is Arduino?	(1)[R]
		A sensor to detect light or sound input.
		An programmable circuit board for building electronic projects
		A type of microchip used in mobile phones
		A special kind of rechargeable battery
	Ans.	ii. An programmable circuit board for building electronic projects
		Source: pg. no. 20
Q.2	Answer the following questions in short.	[8]
	Learning Outcome:  to know the use of basic electronic components to create simple electronic circuits using basic electronic components
		Why is a resistor used in a circuit with an LED?	(2)[R]
	Ans.	A resistor is used to control the flow of current in electronic circuits. It prevents the LED from receiving too much voltage, which can damage it.
		Source: pg. no. 22,24
	Learning Outcome: to identify the different types of cell referencing
		Arjun entered =SUM(E2:E4) in cell F2 and copied it in cells F3 and F4. The formula changed to =SUM(E3:E5) and =SUM(E4:E6) respectively.	(2)[U]
			What is the type of cell referencing used in the formula?
		Ans.	Relative referencing.
			What is the advantage of using this type of cell referencing?
		Ans.	The advantage of relative cell referencing is that you can write a formula only once and copy it to other cells.
		Source: pg. no. 46
	Learning Outcome: to know the types of cloud computing models
		Maya uses iCloud to store and share her homework files with her friends. What type of cloud is Maya using? Why is it suitable for sharing files?	(2)[U]
	Ans.	Maya is using a Public cloud.  It is suitable because public cloud services can be used by many users at the same time, so Maya and her friends can access the files together.
		Source: pg. no. 65
	Learning Outcome: to design a 3D object that uses a circuit assembly
		Aarav is designing a windmill in Tinkercad. He wants the blades of the windmill to spin.	(2)[R]
			Which circuit assembly will Aarav use to create a windmill?
		Ans.	Spin Circuit Assembly
			Which electronic component is used to make the blades spin in this circuit assembly?
		Ans.	A gear motor
		Source: pg. no.29
Q.3	Do as directed.	[12]
	Learning Outcome: to understand the advantages and disadvantages of cloud computing
		Neha’s school stores projects on the cloud. Write four problems Neha’s school might face when using cloud computing.	(4)[U]
	Ans.	Neha’s school cannot access files when there is no internet connection. The school’s stored data may be at risk of hacking. The school has to depend on the cloud service provider for access and reliability. The school’s cost increases when more storage is needed.
		Source: pg. no.66
	Learning Outcome: to create simple electronic circuits using basic electronic components
		You are designing a colourful lamp in Tinkercad. The lamp uses a special LED that can glow in different colours. The LED is controlled by three push buttons.	(4)[Ap]
			What type of LED is used in the lamp?
		Ans.	RGB LED
			How many legs does this LED have?
		Ans.	Four legs
			What are the three main colours this LED can produce?
		Ans.	Red, Green, and Blue
			How can you make the LED glow with a mix of two colours?
		Ans.	By pressing multiple push buttons at the same time
		Source: pg. no. 27-29
	Learning Outcome: to identify the errors displayed while using functions
		Ravi is working in OpenOffice Calc. Sometimes, his formulas display errors instead of numbers. Mention the type of error displayed in each scenario and explain the reason.	(4)[An]
			He types a formula =B2+C2. Later, he deletes the column C.
		Ans.	The error #REF! will appear because the formula refers to a cell that is no longer valid after the column was deleted.
			He wants to add numbers from A1 to A5. He types =SUMM(A1:A5)
		Ans.	The error #NAME? will appear because there is an error in the function’s name; Calc does not recognize SUMM.
		Source: pg. no. 45

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