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# Welcome To Caawiye Q&A

Caawiye Q&A La wadaag oo kobci aqoonta adduunka! Waxaan rabnaa in aan isku xirno dadka aqoonta leh iyo dadka u baahan, si la isugu keeno.

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## 1) Which of the following is not an example of periodic motion?

### Poll Results

3.57%A) An object orbiting the sun. ( 1 voter )
0%B) A pendulum swinging. ( 0 voters )
0%c) A mass on a spring ( 0 voters )
0%D) A ball falling to the ground. ( 0 voters )

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## 2) If an object in periodic motion completes one full cycle in 0.5 seconds, what is the frequency of the motion?

### Poll Results

100%a) 0.5HZ ( 12 voters )

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## 3) A mass oscillates in a simple harmonic motion with amplitude A, if the mass is halved, but the amplitude is not changed, what will happen to the total mechanical energy of the system?

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100%c) It will stay at the same ( 3 voters )

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## 4) If the is 48kg and the spring constant is 12N/m, what is the period of oscillation?

### Poll Results

100%b) 4 π s ( 2 voters )

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## 5) If the mass is displaced 0.35 m from equilibrium position, the restoring force is 7 N. what is the spring constant?

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100%d) 2x101 N/m ( 4 voters )

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## 6) Which of the following does not affect the period of the mass spring system?

### Poll Results

100%c) Amplitude of vibration ( 3 voters )

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## 7) The total energy of the spring is 100J. What is the kinetic energy of the mass at equilibrium point?

### Poll Results

100%d) 100 J ( 2 voters )

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## 8) A pendulum bob hangs from a string and moves with simple harmonic motion, which of the following does not affect the period of the pendulum?

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100%c) the mass of pendulum bob ( 2 voters )

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## 9) A mass oscillates horizontal spring with period T=S2.0s. what is the frequency?

### Poll Results

No votes. Be the first one to vote.

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## 10) A mass on a spring oscillates between point A ad C as shown. Use the figure 1.16 to answer this question

### Poll Results

0%a) A ( 0 voters )
0%b) B ( 0 voters )
50%c) C ( 1 voter )
50%d) A and C ( 1 voter )

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## 12) Hooks law states that the extension in an elastic material is proportional to the stretching force which of the following devices makes use of this effect?

### Poll Results

100%c) Spring balance ( 1 voter )
Based On 1 Vote

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## 13) The period of simple pendulum increase to

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No votes. Be the first one to vote.

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