BYU Physics 121 Chapter 14 Conceptual
Questions and answers rated A+ 2025
The amplitude of a simple harmonic oscillator is doubled. Which of the
following remain the same? - correct answer ✔The frequency. The frequency
depends only on the spring constant and the mass, not the amplitude.
Suppose a special spring is made that has an unusual force law. The force
law of this spring is F = -k x3. The motion of a mass attached to this spring will
be - correct answer ✔periodic motion, but not simple harmonic motion.
When a pendulum swings with a small angle its motion is approximately
simple harmonic. When it swings at a larger angle, why does this not work any
more? - correct answer ✔Because the acceleration is no longer proportional
to the displacement.
Pendulum A has a mass of 100 g and pendulum B has a mass of 250 grams.
They have the same length. The pendulum with the longest period will be -
correct answer ✔They will have the same period. The period of a pendulum
doesn't depend on its mass, just the length of the string and the acceleration
of gravity.
As you drive your car down the road, you notice a rattle in one of the doors.
You notice that it is worst at 35 miles/hour. When you are going either 25 or
45 it doesn't rattle much at all. This is most likely a consequence of - correct
answer ✔resonance. The speed dependence of the rattle is explained by
resonance. When you are going slowly the car shakes the door too slowly to
cause the rattle. When you are going fast the frequency is too high for the
rattle. When you are going 35, the frequency is just right.
If a mass on a spring and a pendulum have the same period on the moon
where the
Questions and answers rated A+ 2025
The amplitude of a simple harmonic oscillator is doubled. Which of the
following remain the same? - correct answer ✔The frequency. The frequency
depends only on the spring constant and the mass, not the amplitude.
Suppose a special spring is made that has an unusual force law. The force
law of this spring is F = -k x3. The motion of a mass attached to this spring will
be - correct answer ✔periodic motion, but not simple harmonic motion.
When a pendulum swings with a small angle its motion is approximately
simple harmonic. When it swings at a larger angle, why does this not work any
more? - correct answer ✔Because the acceleration is no longer proportional
to the displacement.
Pendulum A has a mass of 100 g and pendulum B has a mass of 250 grams.
They have the same length. The pendulum with the longest period will be -
correct answer ✔They will have the same period. The period of a pendulum
doesn't depend on its mass, just the length of the string and the acceleration
of gravity.
As you drive your car down the road, you notice a rattle in one of the doors.
You notice that it is worst at 35 miles/hour. When you are going either 25 or
45 it doesn't rattle much at all. This is most likely a consequence of - correct
answer ✔resonance. The speed dependence of the rattle is explained by
resonance. When you are going slowly the car shakes the door too slowly to
cause the rattle. When you are going fast the frequency is too high for the
rattle. When you are going 35, the frequency is just right.
If a mass on a spring and a pendulum have the same period on the moon
where the
