# IIT JEE / PMT Test Series : Module 8 : +1 : Physics : Simple Harmonic Motion

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6 J
18 J
24 J
36 J
Normal type of MCQ with one correct option Two particles P and Q start from the origin and execute simple harmonic motion along x-axis with the same amplitude and time periods 3 s and 6 s respectively. The ratio of the velocities of P and Q when they meet is
1:2
2:1
2:3
3:2
Normal type of MCQ with one correct option A body is executing simple harmonic motion. At a displacement x, its potential energy is E1 and at a displacement y, its potential energy is E2. The potential energy E at a displacement (x + y) is
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A,B
B
B,C
A,B & D
Comprehension If a mass attached to a spring (mass less) is pulled down twice, as far, the force will be twice as much, the resulting acceleration is twice as great, the velocity it acquires in a given time is twice as great, the distance covered in a given time is twice as great, but it has to cover twice as great a distance in order to get back to the origin. In a linear equation the time pattern does not change. If there were no friction, the oscillation stays on with same amplitude. However when there exists a friction of magnitude smaller for small oscillation and larger for larger oscillation the amplitude gets dropped by the same fraction in every cycle. When the displacement from the mean position is doubled, the quantity that will vary will be:
Time period only
Velocity only
Acceleration only
Both (b) and (c).
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Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true
Comprehension If a mass attached to a spring (mass less) is pulled down twice, as far, the force will be twice as much, the resulting acceleration is twice as great, the velocity it acquires in a given time is twice as great, the distance covered in a given time is twice as great, but it has to cover twice as great a distance in order to get back to the origin. In a linear equation the time pattern does not change. If there were no friction, the oscillation stays on with same amplitude. However when there exists a friction of magnitude smaller for small oscillation and larger for larger oscillation the amplitude gets dropped by the same fraction in every cycle. To solve the S.H. equation with friction, one must consider each half separately since.
Friction reverses its direction in each cycle
The S.H. equation will not be linear
Friction is independent of the displacement
All of these
Comprehension If a mass attached to a spring (mass less) is pulled down twice, as far, the force will be twice as much, the resulting acceleration is twice as great, the velocity it acquires in a given time is twice as great, the distance covered in a given time is twice as great, but it has to cover twice as great a distance in order to get back to the origin. In a linear equation the time pattern does not change. If there were no friction, the oscillation stays on with same amplitude. However when there exists a friction of magnitude smaller for small oscillation and larger for larger oscillation the amplitude gets dropped by the same fraction in every cycle. In amplitude of an oscillation in a reactive to the proceeding one in a system with initial maximum amplitude A0 oscillating in a damping media, the amplitude just after n oscillations will be:
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Brilliant Institute of Advance Studies, Chandigarh offers a complete test series for IIT JEE and PMT preparation for FREE at WiZiQ.com. This series constitutes 11 modules of each subjects +1 and +2 of all subjects Physics, Chemistry, Mathematics and Biology. The pattern of each test comprises all the types of objective questions of IIT JEE and AIPMT (MCQ with one or more correct option, Comprehension, Assertion-Reason, Match Matrix etc). This is the FREE Module test 8 of +1 Physics; the covered chapter is Simple Harmonic Motion. Keep checking for Exclusive Paid Test series for IIT JEE and AIPMT from us at a very nominal cost at WiZiQ.com Happy Learning; all the best!

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