7 - Power Absorption
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Practice Questions
Test your understanding with targeted questions
Define instantaneous power.
💡 Hint: Consider what happens at a snapshot during oscillation.
What is average power in SHM?
💡 Hint: Think of it as energy transfer averaged out.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for instantaneous power in SHM?
💡 Hint: Think about the basic definition of power.
Average power varies with which factors?
💡 Hint: Consider all components impacting energy.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A mass-spring system is driven by an external force with an amplitude of 5 N. If the amplitude of oscillation is 2 m, calculate the average power if the phase lag is 30 degrees.
💡 Hint: Use cosine of the phase angle and plug into the average power formula.
Describe the effects of increasing the driving frequency on power absorption when approaching the natural frequency.
💡 Hint: Consider what happens as you tune in a radio; the closer you get to the right frequency, the clearer the sound.
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