Ear to Ear

12 solved questions from Class 4 EVS, each with the full working. Tap any question to see the step-by-step solution.

• 1 What is the fundamental scientific concept introduced in the chapter 'Ear to Ear'? medium MCQ Key Concept & Definition
• 2 Which of the following is an important application or observation related to 'Ear to Ear'? easy MCQ Practical Application
• 3 What primary question does the chapter 'Ear to Ear' aim to answer? medium MCQ Core Scientific Inquiry
• 4 Why is the study of 'Ear to Ear' essential for students in class-4? hard MCQ Importance & Significance
• 5 Which key practice is recommended while studying topics in 'Ear to Ear'? medium MCQ Scientific Method
• 6 What is the primary topic or theoretical principle explored in 'Ear to Ear' (Class 4 EVS)? medium MCQ Chapter Core Principle
• 7 Which key mechanism or analytical rule is highlighted in 'Ear to Ear'? medium MCQ Key Analytical Mechanism
• 8 A sound source emits sound that travels at 340 m/s in air. If you hear the sound 0.5 seconds after it is produced, how far is the source from you? hard 3 marks Speed of sound
• 9 A child hears a drum 3 seconds after the drum is struck. If the speed of sound is 340 m/s, how far was the drum from the child? medium 2 marks Distance calculation with sound speed
• 10 Which part of the ear helps in collecting sound waves? easy MCQ 1 mark Part of ear collecting sound
• 11 If a sound travels at a speed of 340 m/s, how much time does it take to travel a distance of 170 meters? easy 1 mark Time–distance relationship
• 12 The pitch of a sound depends on its frequency. If a flute plays a note of 250 Hz and a drum plays a note of 100 Hz, which sound will sound higher pitched? hard 3 marks Frequency and pitch relation