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Punjab (PTB) · Chapter test · Free

2nd Year Physics Chapter 2 TestSIMPLE HARMONIC MOTION

30 marks · 40 minutes · 21 questions. Covers: CHAP 14: SIMPLE HARMONIC MOTION.

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2nd Year Physics Chapter 2 Test

2nd Year · Physics · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. A motion which repeats itself after an equal interval of time is called a:

    1. Rotational motion

    2. Random motion

    3. Periodic motion

    4. Linear motion

  2. The time period of a simple pendulum is directly proportional to the:

    1. Length of the string

    2. Square root of the length of the string

    3. Mass of the bob

    4. Amplitude of vibration

  3. When a particle moves in a circular path, what component of its motion executes SHM?

    1. The actual circular path itself

    2. Its angular velocity vector

    3. Its projection on the diameter of the circle

    4. The tangential acceleration component

  4. In a Rubens tube, the low and high flames reveal the positions of:

    1. Pitch and loudness

    2. Crests and troughs

    3. Nodes and antinodes

    4. Speed and frequency

  5. While determining time period of simple pendulum, we keep the amplitude:

    1. Large

    2. Small

    3. Maximum

    4. Zero

  6. Which experimental apparatus is used to demonstrate acoustic standing waves using flames?

    1. Chladni plates

    2. Rubens tube

    3. Acoustic levitation

    4. Resonance bridge

  7. Shock absorbers used in the suspension system of a car are a practical application of:

    1. Free oscillation

    2. Damped oscillation

    3. Undamped oscillation

    4. Resonance

  8.  Initially, a mass attached to a horizontal spring is at rest at position O, which is called the:

    1. Extreme position

    2. Mean position

    3. Compressed position

    4. Turning point

  9. The velocity of a particle moving with S.H.M at the mean position is:

    1. Zero

    2. Minimum

    3. Maximum

    4. None of these

  10. In an acoustic levitator, the pressure of sound is minimum in the area of:

    1. Node

    2. Antinode

    3. Transducer

    4. Reflector

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. State the factors on which the time period of a simple pendulum depends and those it is independent of.

  2. How is the acceleration of the projection point Q related to the centripetal acceleration of the particle?

  3. What does the straight horizontal line for Total Energy (T.E.) indicate in the graph?

  4. Define oscillatory motion.

  5. Explain the origin of potential energy and kinetic energy in a body executing SHM.

  6. Describe how the restoring force changes as a mass moves from the mean position to an extreme position.

  7. Explain how a simple pendulum can be used to measure the value of "g" at a particular location.

  8. What forces can cause dangerous resonance in aeroplane wings?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. A body is executing S.H.M of amplitude 0.05 m and frequency 10 Hz. Find the value of (i) maximum acceleration (ii) maximum velocity.

  2. How does damping affect the amplitude and sharpness of resonance?

  3. Describe the shape of the resonance curve for a heavily damped system.