Understanding Simple Harmonic Motion: Checking Your Answers | Homework Help

[future_vet]

Hi! Could you please check my answers? Thanks!

Homework Statement

Homework Equations

The Attempt at a Solution

1. The time for one cycle of a periodic process is called the (Points: 1)
amplitude.
wavelength.
frequency.
period. <-------


2. A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its potential energy is maximum? (Points: 1)
at either A or B < --------
midway between A and B
one-fourth of the way between A and B
none of the above.


3. What happens to a simple pendulum's frequency if both its length and mass are increased? (Points: 1)
It increases.
It decreases. <----------
It remains the same.
It could remain the same, increase, or decrease; it depends on the length to mass ratio.


4. For a wave, the frequency times the wavelength is the wave's (Points: 1)
speed. <--------
amplitude.
intensity.
power.


5. A 2.0 kg mass is attached to the end of a horizonal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.1 m. What is the total mechanical energy of this system? (Points: 1)
0.020 J
25 J <------- (5/(2x0.1)
0.25 J
1.0 J

 

[future_vet]

Actually it's ok you don't need to help. :)