View
212
Download
0
Category
Preview:
Citation preview
8/8/2011
Physics 111 Practice Problem Statements 14OscillationsSJ 8th Ed.: Chap 15.1 – 15.5
• Oscillations – Basics• Hooke’s Law: A Mass on a Spring• Simple Harmonic Motion – Oscillator
Equation• Energy in a Simple Harmonic
Oscillator• Uniform Circular Motion as a model
for Simple Harmonic Motion• Pendula (Simple, Torsion, Physical• Damped Oscillations (Optional)• Forced Oscillations (Optional)
Contents
16-2, 16-8, 16-10, 16-12, 16-28
8/8/2011
Problem 16-2: An oscillating block–spring system takes 0.75 s to begin repeating its motion. Find (a) the period, (b) the frequency in hertz, and (c) the angular frequency in radians per second.
8/8/2011
Problem 16-8: A small body of mass 0.12 kg is undergoing simple harmonic motion of amplitude 8.5 cm and period 0.20 s. (a) What is the magnitude of the maximum force acting on it? (b) If the oscillations are produced by a spring, what is the spring constant?
8/8/2011
Problem 16-10: A loudspeaker diaphragm is oscillating in simple harmonic motion with a frequency of 440 Hz and a maximum displacement of 0.75 mm. What are (a) the angular frequency, (b) the maximum speed, and (c) the magnitude of the maximum acceleration?
8/8/2011
Problem 16-12: A body oscillates with simple harmonic motion according to the equation
At t = 2.0 s, what are (a) the displacement, (b) the velocity, (c) the acceleration, and (d) the phase of the motion? Also, what are (e) the frequency and (f) the period of the motion?
8/8/2011
Problem 16-28: In the figure, a block weighing 14.0 N, which slides without friction on a 40.0° incline, is connected to the top of the incline by a massless spring of unstretched length 0.450 m and spring constant 120 N/m. (a) How far from the top of the incline does the block stop? (b) If the block is pulled slightly down the incline and released, what is the period of the resulting oscillations?
Recommended