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 longitudinal waves.
💡 Hint: Think about the direction of particles in the wave.
Question 2
Easy
What defines acoustic waves?
💡 Hint: Consider how sound travels through air.
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 main characteristic of longitudinal waves?
- They are perpendicular to wave motion
- They are parallel to wave motion
- They are circular
💡 Hint: Consider the direction particles move in relation to the wave.
Question 2
True or False: Standing waves can exist in both open and closed pipes.
- True
- False
💡 Hint: Think about the conditions in which standing waves can occur.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A long pipe of length 2 m is open at both ends. If the speed of sound in air is 340 m/s, what are the first three harmonics?
💡 Hint: Use the length and speed to calculate harmonics.
Question 2
A closed pipe has a length of 1 m. What is the fundamental frequency if the speed of sound is 340 m/s?
💡 Hint: Consider the formula for an open-closed pipe's harmonics.
Challenge and get performance evaluation