14.1 - Basic Concepts of Vibrations
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Practice Questions
Test your understanding with targeted questions
What is free vibration?
💡 Hint: Think of a swing that keeps moving after you push it.
Define natural frequency in simple terms.
💡 Hint: It's like the rhythm you hear when you pluck a guitar string.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of vibration occurs when a structure vibrates due to external forces?
💡 Hint: Think about external influences like wind.
True or False: Natural frequency is influenced by the mass and stiffness of a structure.
💡 Hint: Recall our discussion about how heavier structures vibrate differently.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A bridge made of steel has a mass of 5000 kg and a stiffness of 120000 N/m. Determine its natural frequency.
💡 Hint: Plug in the values carefully and remember to take the square root.
Consider an old building with a period of 0.5 seconds. What is its natural frequency?
💡 Hint: Convert the period into frequency with this simple division!
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