TAILIEUCHUNG - physics_test_bank_split_16

Tham khảo tài liệu 'physics_test_bank_split_16', khoa học tự nhiên, vật lý phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http Chapter 15 OSCILLATIONS 1. In simple harmonic motion the restoring force must be proportional to the A. amplitude B. frequency C. velocity D. displacement E. displacement squared ans D 2. An oscillatory motion must be simple harmonic if A. the amplitude is small B. the potential energy is equal to the kinetic energy C. the motion is along the arc of a circle D. the acceleration varies sinusoidally with time E. the derivative dU dx of the potential energy is negative ans D 3. In simple harmonic motion the magnitude of the acceleration is A. constant B. proportional to the displacement C. inversely proportional to the displacement D. greatest when the velocity is greatest E. never greater than g ans B 4. A particle is in simple harmonic motion with period T. At time t 0 it is at the equilibrium point. Of the following times at which time is it furthest from the equilibrium point A. B. C. T D. E. ans B 5. A particle moves back and forth along the x axis from x xm to x xm in simple harmonic motion with period T. At time t 0 it is at x xm. When t A. it is at x 0 and is traveling toward x xm B. it is at x 0 and is traveling toward x xm C. it at x xm and is at rest D. it is between x 0 and x xm and is traveling toward x xm E. it is between x 0 and x xm and is traveling toward x xm ans A 226 Chapter 15 OSCILLATIONS Simpo PDF Merge and Split Unregistered Version - http 6. A particle oscillating in simple harmonic motion is A. never in equilibrium because it is in motion B. never in equilibrium because there is always a force C. in equilibrium at the ends of its path because its velocity is zero there D. in equilibrium at the center of its path because the acceleration is zero there E. in equilibrium at the ends of its path because the acceleration is zero there ans D 7. An object is undergoing simple harmonic motion. Throughout a complete cycle it A. has .

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