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paper-plane MCQ Questions for Class 9

paper-plane se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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3 questions tagged with paper-plane.

Question 1/3 Medium Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 11

कागज के विमान के पंखों की लंबाई बदलकर उड़ान दूरी मापी जाती है। नियंत्रित चर कौन सा होना चाहिए?

The wing length of a paper aeroplane is changed and its flight distance is measured. Which should be a controlled variable?

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Correct Answer

C. कागज का प्रकारType of paper

Step 1

Concept

Keeping the paper type the same allows only the effect of wing length to be tested. A controlled variable makes the experiment fair.

Step 2

Why this answer is correct

The correct answer is C. कागज का प्रकार / Type of paper. Keeping the paper type the same allows only the effect of wing length to be tested. A controlled variable makes the experiment fair.

Step 3

Exam Tip

कागज का प्रकार समान रखने से केवल पंखों की लंबाई का प्रभाव जांचा जा सकता है। नियंत्रित चर प्रयोग को निष्पक्ष बनाता है।

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Question 2/3 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 12

कागज के विमान की उड़ान दूरी कौन सा चर है?

What type of variable is the flight distance of a paper plane?

Explanation opens after your attempt
Correct Answer

B. आश्रित चरDependent variable

Step 1

Concept

Flight distance is the measured result so it is the dependent variable. In exams identify the distance measured as the effect.

Step 2

Why this answer is correct

The correct answer is B. आश्रित चर / Dependent variable. Flight distance is the measured result so it is the dependent variable. In exams identify the distance measured as the effect.

Step 3

Exam Tip

उड़ान दूरी मापा गया परिणाम है इसलिए यह आश्रित चर है। परीक्षा में प्रभाव के रूप में मापी गई दूरी पहचानें।

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Question 3/3 Easy Science Exploration: Entering the World of Secondary Science Variables in an experiment Class 9 Level 12

एक छात्र अलग ऊँचाइयों से कागज के विमान छोड़कर उनकी उड़ान दूरी मापता है। छोड़ने की ऊँचाई क्या है?

A student releases paper planes from different heights and measures their flight distance. What is the release height?

Explanation opens after your attempt
Correct Answer

A. स्वतंत्र चरIndependent variable

Step 1

Concept

The release height is deliberately changed so it is the independent variable. In exams choose the changed factor.

Step 2

Why this answer is correct

The correct answer is A. स्वतंत्र चर / Independent variable. The release height is deliberately changed so it is the independent variable. In exams choose the changed factor.

Step 3

Exam Tip

छोड़ने की ऊँचाई जानबूझकर बदली जाती है इसलिए यह स्वतंत्र चर है। परीक्षा में बदले गए कारक को चुनें।

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