Frequency and Period of SHM AP Physics 1 MCQ – Exam Style Questions etc.
Frequency and Period of SHM AP Physics 1 MCQ
Unit 7: Oscillations
Weightage : 10-15%
Exam Style Practice Questions,Frequency and Period of SHM AP Physics 1 MCQ
Question
A student shakes a horizontally-stretched cord, creating waves. The graph above shows the vertical position \(y\) as a function of time \(t\) for a point on the cord. The student then tightens the cord so that waves on it will travel faster than before. How should the student now shake the cord to make the graph of \(y\) versus \(t\) for the point look the same as above?
(A) With fewer shakes per second than before
(B) With the same number of shakes per second as before
(C) With more shakes per second than before
(D) The answer cannot be determined without knowing the wavelength of the waves.
▶️Answer/Explanation
Ans:B
Question
A student sets an object attached to a spring into oscillatory motion and uses a position sensor to record the displacement of the object from equilibrium as a function of time. A portion of the recorded data is shown in the figure above.
The speed of the object at time \(t=0.65 \mathrm{~s}\) is most nearly equal to which of the following?
(A) The value of the graph at \(0.65 \mathrm{~s}\)
(B) The slope of the line connecting the origin and the point on the graph at \(0.65 \mathrm{~s}\)
(C) The slope of the line connecting the point where the graph crosses the time axis near \(0.57 \mathrm{~s}\) and the point on the graph at \(0.65 \mathrm{~s}\)
(D) The slope of the tangent to a best-fit sinusoidal curve at \(0.65 \mathrm{~s}\)
▶️Answer/Explanation
Ans:D