Identify the incorrect statement about the displacement of an object oscillating in simple harmonic motion.
Displacement is a vector quantity
Displacement and velocity act in opposite directions
Displacement is proportional to the restoring force
Displacement is proportional to acceleration
Identify the true statement about phase difference.
Phase difference must be calculated from the crest of one wave to the crest on another wave
When the same points on two different waves align, the waves are in anti-phase
Phase difference is a measure of how much one point on a wave is in front or behind a different point on another wave
Waves in phase have a phase difference of 2π radians
Select the graph that shows the oscillation beginning at positive amplitude x0.
The total energy E T in system in simple harmonic motion reflects the energy transfers between the kinetic energy E K store and the potential energy E P store.
Identify the correct equation for the total energy of a system in simple harmonic motion.
ET = EP − EK
ET = EP × EK
ET = 
ET = EP + EK
Select the position on the acceleration-time graph where displacement x = 0
Identify the statement that is not a condition of simple harmonic motion.
The restoring force is directed toward the amplitude x0
Acceleration is directed toward the equilibrium position
The oscillations are isochronous
The magnitude of the restoring force is proportional to the displacement
Choose the graph that shows an oscillation beginning at equilibrium.
Identify the correct equation for time period T with respect to frequency f.
T = 
πf
T = 
T = f
T = f
Select the position on the displacement-time graph that shows when the velocity is zero.
As a mass-spring system oscillates in simple harmonic motion, the restoring force F is proportional to the displacement x.
F = −kx
Choose the line that shows the correct units for each quantity.
|
Force F |
Spring constant k |
Displacement x |
|
|
A. |
N |
N m−1 |
m |
|
B. |
Nm |
N |
m2 |
|
C. |
N m−1 | Nm | ml |
|
D. |
N |
N kg−1 |
m |
