College Physics答案2023

第九章测试

1.An oscillator takes 10s for 5 revolutions. What is the angular frequency of this oscillation.（ ）
A: B: C: D:
答案:D
2.In spring-block system (spring constant and mass ), what is the frequency for simple harmonic motion. （ ）
A: B: C: D: 3.For a simple harmonic motion , which of the following statements are correct. （ ）
A:Amplitude is independent on and B:angular frequency is related to period C:the displacement and velocity can reach the maximum simultaneously D:phase angle gives the initial position of the oscillation 4.For simple harmonic motion in x direction, which of the following statements are correct. （ ）
A:the restoring force B:uniform circular motion can be used for interpretation C:the mechanical energy is conserved D:kinetic energy is always smaller than potential energy 5.The equation of oscillations can only be expressed as trigonometric functions. （ ）
A:对 B:错