14.4 - THE SPEED OF A TRAVELLING WAVE
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Practice Questions
Test your understanding with targeted questions
What is the formula to calculate wave speed?
💡 Hint: Think about the basic relationship between distance and time.
If the tension of a string is increased, what happens to wave speed?
💡 Hint: Consider how tension affects restoring forces.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the relationship between wave speed, frequency, and wavelength?
💡 Hint: Consider the principles of wave propagation.
In a stretched string, how does increasing the tension affect the wave speed?
💡 Hint: Reflect on how tension affects motion in physics.
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Challenge Problems
Push your limits with advanced challenges
Consider a wave traveling along a string with a tension of 120 N and linear mass density of 0.25 kg/m. Calculate the wave speed.
💡 Hint: Use the wave speed formula directly.
A sound wave travels in a gas at a temperature of 20°C where the density is 1.2 kg/m³ and the bulk modulus is 1.4 x 10^5 Pa. Find the speed of sound.
💡 Hint: Substitute the values into the equation for sound speed.
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