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Thermodynamics, space and oscillations

Quick questions on Simple harmonic motion: defining condition, energy and resonance - Edexcel A-Level Physics

5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is the defining condition?
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This single condition produces sinusoidal motion. The constant ω\omega relates to the period by ω=2πT\omega = \frac{2\pi}{T}. For a mass on a spring T=2πmkT = 2\pi\sqrt{\frac{m}{k}}, and for a simple pendulum T=2πLgT = 2\pi\sqrt{\frac{L}{g}} (for small angles).
What is energy interchange?
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A graph of energy against displacement shows potential energy as a parabola rising to the amplitude, kinetic energy as the inverted parabola, and their sum as a constant horizontal line.
What is q1?
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State the defining condition for simple harmonic motion. [1 mark]
What is q2?
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An object in SHM has ω=10\omega = 10 rad per second and amplitude 0.0300.030 m. Find its maximum speed. [2 marks]
What is q3?
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Explain what is meant by resonance. [2 marks]

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