12th Class Physics | Unit 17 | Simple Harmonic Motion | MCQS | NBF New Book FBISE 2025-2026

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Multiple Choice Questions:
Encircle the Correct option.
1) Which of the following statements is true regarding the acceleration of the particle executing simple harmonic motion?
A. Acceleration is zero at the mean position
B. Acceleration is maximum at the mean position
C. Acceleration is zero at the extreme position
D. Acceleration is a constant
2) If your heart rate is 150 beats per minute during strenuous exercise, what is the time per beat in seconds?
A. 150
B. 2.5
C. 0.4
D. 0.0067
3) Which of the following relationship between the acceleration 'a' and the displacement 'x' of a particle involve SHM?
A. a = 0.7 x
B. a = -200 x²
C. a = -10 x
D. a = 100 x²
4) A mass-spring system undergoes simple harmonic motion has amplitude A. When the kinetic energy of the object equals twice the potential energy stored in the spring, what is the position x of the object?
A. A
B. A/3
C. A/√3
D. 0
5) Suppose we replace the spring in a simple harmonic oscillator with a stronger spring, having twice the spring constant. What is the ratio of the new period of oscillation to the original period?
A. 1/2
B. 1/√2
C. 1
D. √2
6) A pinball machine uses a spring that is compressed 4.0 cm to launch a ball. If the spring constant is 13 N/m, what is the force on the ball at the moment the spring is released?
A. 52 N
B. 0.52 N
C. 0.52 N m
D. 5.2 N m
7) A particle is executing simple harmonic motion with period T. At time t = 0 it is at the equilibrium point. At which time is it furthest from the equilibrium point?
A. 0.50 T
B. 0.70 T
C. 0.25 T
D. 1.4 T
8) The acceleration of a body executing simple harmonic motion leads the velocity by what phase?
A. 0 rad
B. π/8 rad
C. π/4 rad
D. π/2 rad
9) A simple pendulum has a period of 2.5 s. What is its period if its length is made four times larger?
A. 0.625 s
B. 1.25 s
C. 2.5 s
D. 5 s
10) What is the frequency of a pendulum that swings at the rate of 45 cycles per minute?
A. 0.75 Hz
B. 1.3 Hz
C. 2700 Hz
D. 60 Hz
11) A block at the end of a horizontal spring is pulled from equilibrium at x = 0 to x = A, and then released. Through what total distance does it travel in one full cycle of its motion?
A. A/2
B. A
C. 2 A
D. 4 A
12) A particle is vibrating simple harmonically with an acceleration of 16 cm s$^{-2}$ when it is at a distance of 4 cm from the mean position. Its time period is:
A. 1 s
B. 2.572 s
C. 3.142 s
D. 6.028 s

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