Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define what a node is in the context of standing waves.
💡 Hint: Think about where the wave is stationary.
Question 2
Easy
What is the difference between an open-open pipe and an open-closed pipe?
💡 Hint: Focus on how sound can exit the pipe.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the frequency of the first harmonic in an open-open pipe of length 2 m if the speed of sound is 340 m/s?
- 85 Hz
- 170 Hz
- 340 Hz
💡 Hint: Consider the formula for the fundamental frequency.
Question 2
True or False: An open-closed pipe can produce even harmonics.
- True
- False
💡 Hint: Recall the restrictions at the closed end.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A pipe that is closed at one end resonates at a fundamental frequency of 500 Hz. If the length of the pipe is 1.4 m, what is the speed of sound calculated from this information?
💡 Hint: Make sure to rearrange the formula for speed first.
Question 2
Find the third harmonic frequency for an open-open pipe of length 0.75 m with a speed of sound of 340 m/s.
💡 Hint: Always remember to substitute the proper n value.
Challenge and get performance evaluation